Seminar presentation by 4th year medical student of Lincoln University College, supervised by HRPZ Orthopedic's specialist.
Reference were from reliable medical websites and also from texttbook; Apley and Solomon's Concise System of Orthopaedics and Trauma, 4th Ed.
Seminar presentation by 4th year medical student of Lincoln University College, supervised by HRPZ Orthopedic's specialist.
Reference were from reliable medical websites and also from texttbook; Apley and Solomon's Concise System of Orthopaedics and Trauma, 4th Ed.
compartment syndrome, causes, compartments of legs,compartments of forearm,compartments of hand,compartments of foot, compartments of arm,compartments of thigh,fasciotomy of leg,fasciotomy of forearm, fasciotomy of hand,fasciotomy of foot, fasciotomy of thigh, fasciotomy of arm
Presentation on different levels of amputation of upper limb including hand amputations., thumb reconstructions, kruckenberg amputation, thumb poloicization.
Incision or transection of bone.
Uses:-
to correct deformity.
to change shape of bone.
to redirect load trajectories in a limb so as to influence joint function.
compartment syndrome, causes, compartments of legs,compartments of forearm,compartments of hand,compartments of foot, compartments of arm,compartments of thigh,fasciotomy of leg,fasciotomy of forearm, fasciotomy of hand,fasciotomy of foot, fasciotomy of thigh, fasciotomy of arm
Presentation on different levels of amputation of upper limb including hand amputations., thumb reconstructions, kruckenberg amputation, thumb poloicization.
Incision or transection of bone.
Uses:-
to correct deformity.
to change shape of bone.
to redirect load trajectories in a limb so as to influence joint function.
An increased pressure within enclosed
osteofascial space that reduces capillary per-
fusion below level necessary for tissue
viability; the underlying mechanism is:
- increased volume within space
- decreased space for contents
- combination of both
Cervical Arthritis, Cervical Spondylotic Myelopathy by Pablo Pazmino MDPablo Pazmino
This video explains Cervical Stenosis and Cervical Spondylosis/Arthritis. When stenosis begins to affect the spinal cord this is called Cervical Spondylotic Myelopathy. This video highlights the history, epidemiology, and treatment options both conservative and surgical. If you or someone you know needs to be seen in regards to Cervical Stenosis/Arthritis feel free to look us up online www.beverlyspine.com or www.santamonicaspine.com OR call toll free 1-8SPINECAL-1
This video explains Cervical Stenosis and Cervical Spondylosis/Arthritis. When stenosis begins to affect the spinal cord this is called Cervical Spondylotic Myelopathy. This video highlights the history, epidemiology, and treatment options both conservative and surgical. If you or someone you know needs to be seen in regards to Cervical Stenosis/Arthritis feel free to look us up online www.beverlyspine.com or www.santamonicaspine.com OR call toll free 1-8SPINECAL-1
An introduction to the use of spinal cord stimulator therapy for chronic pain states as an adjunct and adjuvant
therapy. Spinal cord stimulators are meant for patients who have failed conservative modalities, medications, and even surgery. It is a modality to restore function and pain relief.
Pain & pain/certified fixed orthodontic courses by Indian dental academyIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
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New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
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To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
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- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
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TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
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Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
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2. Compartment SyndromeCompartment Syndrome
DEFINITIONDEFINITION
Elevated tissue pressure within aElevated tissue pressure within a
closed fascial spaceclosed fascial space
Reduces tissue perfusion - ischemiaReduces tissue perfusion - ischemia
Results in cell death - necrosisResults in cell death - necrosis
True Orthopaedic EmergencyTrue Orthopaedic Emergency
3. HistoryHistory
Volkmann 1881Volkmann 1881
Richard von VolkmannRichard von Volkmann
published an article in whichpublished an article in which
he attempted to describe thehe attempted to describe the
condition of irreversiblecondition of irreversible
contractures of the flexorcontractures of the flexor
muscles of the hand tomuscles of the hand to
ischemic processes occurringischemic processes occurring
in the forearmin the forearm
Application of restrictiveApplication of restrictive
dressing to an injured limbdressing to an injured limb
4. Hildebrand 1906Hildebrand 1906
First used the term Volkmann ischemicFirst used the term Volkmann ischemic
contracture to describe the final resultcontracture to describe the final result
of any untreated compartmentof any untreated compartment
syndrome, and was the first tosyndrome, and was the first to
suggest that elevated tissue pressuresuggest that elevated tissue pressure
may be related to ischemicmay be related to ischemic
contracture.contracture.
5. Thomas 1909Thomas 1909
Reviewed the 112 published cases ofReviewed the 112 published cases of
Volkmann ischemic contracture andVolkmann ischemic contracture and
found fractures to be the predominantfound fractures to be the predominant
cause.cause.
Also, noted that tight bandages, anAlso, noted that tight bandages, an
arterial embolus, or arterialarterial embolus, or arterial
insufficiency could also lead to theinsufficiency could also lead to the
problemproblem
6. Murphy 1914Murphy 1914
First to suggest that Fasciotomy mightFirst to suggest that Fasciotomy might
prevent the contracture.prevent the contracture.
Also, suggested that tissue pressureAlso, suggested that tissue pressure
and Fasciotomy were related to theand Fasciotomy were related to the
development of contracturedevelopment of contracture
7. Ellis 1958Ellis 1958
Reported a 2% incidence ofReported a 2% incidence of
compartment syndrome with tibiacompartment syndrome with tibia
fractures, and increased attention wasfractures, and increased attention was
paid to contractures involving thepaid to contractures involving the
lower extremitieslower extremities
8. Seddon, Kelly, and Whitesides 1967Seddon, Kelly, and Whitesides 1967
Demonstrated the existence of 4Demonstrated the existence of 4
compartments in the leg and to the need tocompartments in the leg and to the need to
decompress more than just the anteriordecompress more than just the anterior
compartment.compartment.
Since then, compartment syndrome hasSince then, compartment syndrome has
been shown to affect many areas of thebeen shown to affect many areas of the
body, including the hand, foot, thigh, andbody, including the hand, foot, thigh, and
buttocks.buttocks.
10. Fracture
The most common causeThe most common cause
incidence of accompanyingincidence of accompanying
compartment syndrome ofcompartment syndrome of
9.1%9.1%
The incidence is directlyThe incidence is directly
proportional to the degree ofproportional to the degree of
injury to soft tissue and boneinjury to soft tissue and bone
occurred most often inoccurred most often in
association with aassociation with a
comminuted, grade-III opencomminuted, grade-III open
injury to a pedestrianinjury to a pedestrian
Blick et al JBJS 1986Blick et al JBJS 1986
Blunt Trauma
2nd most common cause2nd most common cause
About 23% of CSAbout 23% of CS
25% due to direct blow25% due to direct blow
11. IncidenceIncidence
164 pts with CS, 149 male, 15 female164 pts with CS, 149 male, 15 female
Most pts were usually under 35Most pts were usually under 35
69% with associated fx, about half69% with associated fx, about half
were tibial shaftwere tibial shaft
23% soft tissue injury without fx23% soft tissue injury without fx
Ranges of 2-12% have beenRanges of 2-12% have been
publishedpublished
McQueen et al; JBJS Br 2000McQueen et al; JBJS Br 2000
12. IncidenceIncidence
Type ofType of
FxFx
% of% of
ACSACS
IncidencIncidenc
e alle all
agesages
IncidenceIncidence
<35<35
TibialTibial
diaphysidiaphysi
ss
36%36% 4.3%4.3% 5.9%(3 fold)5.9%(3 fold)
DistalDistal
radiusradius
9.8%9.8% 0.25%0.25% 1.4%(301.4%(30
fold)fold)
ForearmForearm
diaphysidiaphysi
7.9%7.9% 3.1%3.1% 3.2%3.2%
13. Patient PositioningPatient Positioning
Leaving the calf free when the leg is placedLeaving the calf free when the leg is placed
in the hemilithotomy position.in the hemilithotomy position.
Instead of using a standard well-leg holderInstead of using a standard well-leg holder
Increases the difference between theIncreases the difference between the
diastolic blood pressure and thediastolic blood pressure and the
intramuscular pressure.intramuscular pressure.
May decrease the risk of compartmentMay decrease the risk of compartment
syndrome.syndrome.
-Meyer, Mubarak JBJS 2002
15. PathophysiologyPathophysiology
Normal tissue pressureNormal tissue pressure
– 0-4 mm Hg0-4 mm Hg
– 8-10 with exertion8-10 with exertion
Absolute pressure theoryAbsolute pressure theory
– 30 mm Hg - Mubarak30 mm Hg - Mubarak
– 45 mm Hg - Matsen45 mm Hg - Matsen
Pressure gradient theoryPressure gradient theory
– < 20 mm Hg of diastolic pressure –< 20 mm Hg of diastolic pressure –
Whitesides & McQueen, et alWhitesides & McQueen, et al
18. Pressure >30mmHgPressure >30mmHg results in nerveresults in nerve
conduction velocity blockage after 6-8conduction velocity blockage after 6-8
hrs and irreversibility after 8 hrshrs and irreversibility after 8 hrs
(normal pressure 4mmHg)(normal pressure 4mmHg)
--Hargens--Hargens
19. PathophysiologyPathophysiology
Necrosis causes cell death andNecrosis causes cell death and
inflammatory processinflammatory process – increasing– increasing
intracellular calcium concentrationintracellular calcium concentration
causing fluid shift into muscle fiberscausing fluid shift into muscle fibers
After 8 hoursAfter 8 hours irreversible muscleirreversible muscle
changeschanges
20. DiagnosisDiagnosis
The 6 P’s:The 6 P’s:
PulselessnessPulselessness
PallorPallor
ParalysisParalysis
Pain with passive stretchPain with passive stretch
Paresthesia/hypoesthesiaParesthesia/hypoesthesia
Palpably tense compartmentPalpably tense compartment
21. ““Pain and the aggravation of pain byPain and the aggravation of pain by
passive stretching of the muscles inpassive stretching of the muscles in
the compartment in question are thethe compartment in question are the
most sensitive (and generally the only)most sensitive (and generally the only)
clinical finding before the onset ofclinical finding before the onset of
ischemic dysfunction in the nerves andischemic dysfunction in the nerves and
muscles.”muscles.”
Whitesides AAOS 1996Whitesides AAOS 1996
22. PainPain – most important. Especially pain out of– most important. Especially pain out of
proportion to the injury (child becomingproportion to the injury (child becoming
more and more restless /needing moremore and more restless /needing more
analgesia)analgesia)
Most reliable signsMost reliable signs are pain on passiveare pain on passive
stretching and pain on palpation of thestretching and pain on palpation of the
involved compartmentinvolved compartment
Other features like pallor, pulselessness,Other features like pallor, pulselessness,
paralysis, paraesthesia etcparalysis, paraesthesia etc. appear very late. appear very late
and we should not wait for these things.and we should not wait for these things.
Willis &Rorabeck OCNA 1990Willis &Rorabeck OCNA 1990
23. Important signsImportant signs
PainPain on palpation of compartmenton palpation of compartment
Tense compartmentTense compartment compared to other sidecompared to other side
Pain on passive stretch across compartmentPain on passive stretch across compartment
Sensory deficitSensory deficit of nerve traversing theof nerve traversing the
compartmentcompartment
Muscle weaknessMuscle weakness
Normal capillary refillNormal capillary refill
Compartment syndrome seen in open tibias 6-Compartment syndrome seen in open tibias 6-
9%9%
--Blick--Blick
24. Beware of epidural analgesiaBeware of epidural analgesia
Strecker JBJS 1986Strecker JBJS 1986
Morrow J. Trauma 1994Morrow J. Trauma 1994
Beware long acting nerve blocksBeware long acting nerve blocks
Hyder JBJS Br 1995Hyder JBJS Br 1995
Beware of controlled intravenousBeware of controlled intravenous
opiate analgesiaopiate analgesia
27. Pressure measurementsPressure measurements
MubarakMubarak -- Fasciotomy when >30--- Fasciotomy when >30-
40mmHg40mmHg
MatsenMatsen -- >45 mmHg developed ACS-- >45 mmHg developed ACS
WhitesidesWhitesides -- Fasciotomy when within-- Fasciotomy when within
20mmHg of DBP20mmHg of DBP
McQueenMcQueen -- Fasciotomy when within-- Fasciotomy when within
30mmHg of DBP30mmHg of DBP
HeppenstallHeppenstall – within 40mmHg (MAP-– within 40mmHg (MAP-
compartment pressurescompartment pressures
30. Pressure MeasurementsPressure Measurements
Simple Needle
18 gauge
Least accurate
Usually gives falsely higher
reading
Slit Catheter and Side ported
needle
No significant difference
More accurate
Moed et al JBJS 1993Moed et al JBJS 1993
31. MeasurementsMeasurements must be made in allmust be made in all
compartmentscompartments
Anterior and deep posteriorAnterior and deep posterior are usuallyare usually
highesthighest
MeasurementMeasurement made within 5 cm of fracturesmade within 5 cm of fractures
Marginal readingsMarginal readings must be followed withmust be followed with
repeat physical exam and repeatrepeat physical exam and repeat
compartment pressure measurementcompartment pressure measurement
Heckman, WhitesidesHeckman, Whitesides JBJS 1994JBJS 1994
32.
33. SUSPECTED COMPARTMENTSUSPECTED COMPARTMENT
SYNDROMESYNDROME
Unequivocal + FindingsUnequivocal + Findings
FASCIOTOMYFASCIOTOMY
Pt. notPt. not
alert/polytrauma/unconciousalert/polytrauma/unconcious
Comp. pressure measurementComp. pressure measurement
within 30 mm Hg >30 mm Hgwithin 30 mm Hg >30 mm Hg
of DBPof DBP
Serial examsSerial exams
FASCIOTOMYFASCIOTOMY
McQueen JBJSB 1996
34.
35. Compartment SyndromeCompartment Syndrome
Emergent TreatmentEmergent Treatment
Remove castRemove cast or dressingor dressing
Place at level of heartPlace at level of heart
(DO NOT ELEVATE(DO NOT ELEVATE as elevation reducesas elevation reduces
the arterial inflow and the arterio-venousthe arterial inflow and the arterio-venous
pressure gradientpressure gradient
Alert ORAlert OR and Anesthesiaand Anesthesia
Medical treatment-Medical treatment- Supplemental oxygenSupplemental oxygen
administrationadministration
Ensure patient is normotensiveEnsure patient is normotensive
36. Medical ManagementMedical Management
Compartmental pressure falls by 30% whenCompartmental pressure falls by 30% when
cast is split on one sidecast is split on one side
Falls by 65% when the cast is spread afterFalls by 65% when the cast is spread after
splitting.splitting.
Splitting the padding reduces it by a furtherSplitting the padding reduces it by a further
10% and complete removal of cast by10% and complete removal of cast by
another 15%another 15%
Total of 85-90% reduction by just taking offTotal of 85-90% reduction by just taking off
the plaster!the plaster!
Garfin, Mubarak JBJS 1981
37. Threshold forThreshold for
FasciotomyFasciotomy
116 pts with tibial diaphyseal fx had116 pts with tibial diaphyseal fx had
continuous monitoring of anteriorcontinuous monitoring of anterior
compartment pressure for 24 hourscompartment pressure for 24 hours
– 53 pts had ICP over 30 mmHg53 pts had ICP over 30 mmHg
– 30 pts had ICP over 40 mmHg30 pts had ICP over 40 mmHg
– 4 pts had ICP over 50 mmHg4 pts had ICP over 50 mmHg
McQueen, Court-Brown JBJS Br 1996McQueen, Court-Brown JBJS Br 1996
38. Only 3 hadOnly 3 had Delta pr(DBP-ICP)Delta pr(DBP-ICP) of < 30,of < 30,
they hadthey had FasciotomyFasciotomy
None of the patients had any sequalaeNone of the patients had any sequalae
of the compartment syndromeof the compartment syndrome
DecompressionDecompression should be performed ifshould be performed if
the differential pressure level drops tothe differential pressure level drops to
under 30 mmHgunder 30 mmHg
40. Compartment SyndromeCompartment Syndrome
Surgical TreatmentSurgical Treatment
Fasciotomy - prophylactic release ofFasciotomy - prophylactic release of
pressure before permanent damagepressure before permanent damage
occurs. Will not reverse injury fromoccurs. Will not reverse injury from
trauma.trauma.
Fracture care – stabilizationFracture care – stabilization
– Ex-fixEx-fix
– IM NailIM Nail
41. Compartment SyndromeCompartment Syndrome
Indications for FasciotomyIndications for Fasciotomy
Unequivocal clinical findingsUnequivocal clinical findings
Pressure within 15-20 mm hg of DBPPressure within 15-20 mm hg of DBP
Rising tissue pressureRising tissue pressure
Significant tissue injury or high risk ptSignificant tissue injury or high risk pt
> 6 hours of total limb ischemia> 6 hours of total limb ischemia
Injury at high risk of compartment syndromeInjury at high risk of compartment syndrome
CONTRAINDICATION -CONTRAINDICATION -
Missed compartment syndrome (>24-Missed compartment syndrome (>24-
48 hrs)48 hrs)
42. Fasciotomy PrinciplesFasciotomy Principles
Make early diagnosisMake early diagnosis
LongLong extensile incisionsextensile incisions
Release all fascial compartmentsRelease all fascial compartments
Preserve neurovascular structuresPreserve neurovascular structures
Debride necrotic tissuesDebride necrotic tissues
Coverage within 7-10 daysCoverage within 7-10 days
45. Single IncisionSingle Incision
Perifibular FasciotomyPerifibular Fasciotomy
– Matsen et al (1980)Matsen et al (1980)
– Single incision justSingle incision just
posterior to fibulaposterior to fibula
– Common peroneal nerveCommon peroneal nerve
46. Double IncisionDouble Incision
In most instances itIn most instances it
affords better exposure ofaffords better exposure of
the four compartmentsthe four compartments
2 vertical incisions separated2 vertical incisions separated
by minimum 8 cmby minimum 8 cm
One incision over anterior andOne incision over anterior and
lateral compartmentslateral compartments
Superficial peroneal nerveSuperficial peroneal nerve
One incision locatedOne incision located
1-2 cm behind postero1-2 cm behind postero
-medial aspect of tibia-medial aspect of tibia
Saphenous nerve and veinSaphenous nerve and vein
Mubarak et al JBJS 1977
49. Look for SuperficialLook for Superficial
Peroneal NervePeroneal Nerve
Superficial peroneal nerveSuperficial peroneal nerve
exits from lateral compartmentexits from lateral compartment
about 10 cm above lateralabout 10 cm above lateral
malleolus and courses into themalleolus and courses into the
anterior compartmentanterior compartment
Risk of injuryRisk of injury
50. PerifibularPerifibular
Posterior to fibular headPosterior to fibular head to just aboveto just above
Lat malleolusLat malleolus
Expose and protect CommonExpose and protect Common
Peroneal Nerve proximallyPeroneal Nerve proximally
More difficult to decompress deepMore difficult to decompress deep
compartmentcompartment
Anterior insicion mobilized aroundAnterior insicion mobilized around
fibula decompress ant/latfibula decompress ant/lat
compartmentscompartments
51.
52. Two - IncisionTwo - Incision
11stst
incisionincision placed half – way betweenplaced half – way between
tibia crest and fibulatibia crest and fibula
Transverse facsia incision to identifyTransverse facsia incision to identify
the intermuscular septumthe intermuscular septum
Watch out for superficial peronealWatch out for superficial peroneal
nerve close to the septumnerve close to the septum
22ndnd
incisionincision posteromedial approachposteromedial approach
-2cm posterior to posteromedial-2cm posterior to posteromedial
margin of tibiamargin of tibia
Avoids saphenous nerve/veinAvoids saphenous nerve/vein
53. Use a Generous IncisionUse a Generous Incision
Lengthening the skin incisions to an averageLengthening the skin incisions to an average
ofof 16 cm16 cm decreases intra compartmentaldecreases intra compartmental
pressures significantly.pressures significantly.
The skin envelope is a contributing factor inThe skin envelope is a contributing factor in
acute compartment syndromes of the legacute compartment syndromes of the leg
and The use of generous skin incisions isand The use of generous skin incisions is
supportedsupported
Cohen, Mubarak JBJS Br 1991
54. Compartment SyndromeCompartment Syndrome
ForearmForearm
Anatomy-3 compartmentsAnatomy-3 compartments
– Mobile wad-Mobile wad-
BR,ECRL,ECRBBR,ECRL,ECRB
– Volar-Superficial and deepVolar-Superficial and deep
flexorsflexors
– Dorsal-ExtensorsDorsal-Extensors
– Pronator quadratusPronator quadratus
described as a separatedescribed as a separate
compartmentcompartment
55. Forearm FasciotomyForearm Fasciotomy
Volar-HenryVolar-Henry
approachapproach
– Include a carpalInclude a carpal
tunnel releasetunnel release
Release lacertusRelease lacertus
fibrosus and fasciafibrosus and fascia
Protect medianProtect median
nerve, brachialnerve, brachial
artery and tendonsartery and tendons
after releaseafter release
56.
57. Forearm FasciotomyForearm Fasciotomy
Protect medianProtect median
nerve, brachialnerve, brachial
artery and tendonsartery and tendons
after releaseafter release
Consider dorsalConsider dorsal
releaserelease
58. Hand FasciotomyHand Fasciotomy
Interosseous muscles surrounded byInterosseous muscles surrounded by
investing fascia - not a true compartmentinvesting fascia - not a true compartment
Dorsal incisionsDorsal incisions along 2along 2ndnd
and 4and 4thth
MCMC
releasing on both sides and deep bluntlyreleasing on both sides and deep bluntly
Can reach the adductor compartment viaCan reach the adductor compartment via
22ndnd
MC incisionMC incision
Thenar radial side of thumbThenar radial side of thumb
Hypothenar ulnar side of 5Hypothenar ulnar side of 5thth
MCMC
59. Compartment SyndromeCompartment Syndrome
HandHand
non specific achingnon specific aching
of the handof the hand
disproportionatedisproportionate
painpain
loss of digitalloss of digital
motion & continuedmotion & continued
swellingswelling
– MP extensionMP extension
and PIP flexionand PIP flexion
difficult to measuredifficult to measure
60. 10 separate osteofascial10 separate osteofascial
compartmentscompartments
– dorsal interossei (4)dorsal interossei (4)
– palmar interossei (3)palmar interossei (3)
– thenar and hypothenarthenar and hypothenar
(2)(2)
– adductor pollicis (1)adductor pollicis (1)
Fasciotomy of HandFasciotomy of Hand
61. Finger fasciotomyFinger fasciotomy
Investing fascia supported by toughInvesting fascia supported by tough
volar skinvolar skin
Compartmentalize at flexion creasesCompartmentalize at flexion creases
Ulnar side index, long, and ring fingerUlnar side index, long, and ring finger
Radial side thumb and smallRadial side thumb and small
62. Spares dorsal digital nerve branchesSpares dorsal digital nerve branches
Make incision at neutral axis of motion -Make incision at neutral axis of motion -
where flexor creases endwhere flexor creases end
Over distal phalanx close to nailOver distal phalanx close to nail
63.
64.
65. Compartment SyndromeCompartment Syndrome
FootFoot
9 compartments9 compartments
– Medial, Superficial, Lateral,Medial, Superficial, Lateral,
CalcanealCalcaneal
– Interossei(4), AdductorInterossei(4), Adductor
Careful exam with any swellingCareful exam with any swelling
Clinical suspicion with certainClinical suspicion with certain
mechanisms of injurymechanisms of injury
– Lisfranc fracture dislocationLisfranc fracture dislocation
– Calcaneus fractureCalcaneus fracture
66. Foot FasciotomyFoot Fasciotomy
Traditionally five compartments (Traditionally five compartments (lateral,lateral,
medial, central, interosseous, andmedial, central, interosseous, and
calcaneal)calcaneal)
Two dorsal incisionsTwo dorsal incisions over 2over 2ndnd
and 4and 4thth
MTMT
– Releases interossei and adductorReleases interossei and adductor
Medial incisionMedial incision – 3cm from plantar– 3cm from plantar
surface, 4cm from posterior heelsurface, 4cm from posterior heel
– Subsequent released sup. and inf.Subsequent released sup. and inf.
Exposing plantar aponeurosis and getsExposing plantar aponeurosis and gets
abductor hallucis, calcaneal comartment,abductor hallucis, calcaneal comartment,
digiti quintidigiti quinti
67.
68. Dorsal incisionDorsal incision -to release the-to release the
interosseous and adductorinterosseous and adductor
Medial incisionMedial incision -to release the-to release the
medial, superficial lateral andmedial, superficial lateral and
calcaneal compartmentscalcaneal compartments
Compartment SyndromeCompartment Syndrome
FootFoot
69. Compartment SyndromeCompartment Syndrome
ThighThigh
Lateral to releaseLateral to release
anterior andanterior and
posteriorposterior
compartmentscompartments
May require medialMay require medial
incision for adductorincision for adductor
compartmentcompartment
Lateral septum
Vastus lateralis
70. Delayed FasciotomyDelayed Fasciotomy
Is it Safe?Is it Safe?
– infection rate of 46% and amputation rate of 21%infection rate of 46% and amputation rate of 21%
after a delay of 12 hoursafter a delay of 12 hours
– 4.5 % complications for early fasciotomies and4.5 % complications for early fasciotomies and
54% for delayed ones54% for delayed ones
RecommendationsRecommendations
– If the CS has existed for more than 8-10 hrs,If the CS has existed for more than 8-10 hrs,
supportive treatment of acute renal failure shouldsupportive treatment of acute renal failure should
be considered.be considered.
– Skin is left intact and late reconstructions maybeSkin is left intact and late reconstructions maybe
planned.planned.
Sheridan, Matsen.JBJSSheridan, Matsen.JBJS
19761976
71. Delayed FasciotomyDelayed Fasciotomy
Is it Safe?Is it Safe?
– 5 pts, nine fasciotomies in lower limbs5 pts, nine fasciotomies in lower limbs
– Avg delay 56 h. (35-96 hrs).Avg delay 56 h. (35-96 hrs).
– 1 pt died of septicaemia and multi organ1 pt died of septicaemia and multi organ
failure, the others required amputationsfailure, the others required amputations
RecommendationsRecommendations::
– In delayed cases, routine fasciotomy mayIn delayed cases, routine fasciotomy may
not be successfulnot be successful
Finkelstein et al. J Trauma 1996Finkelstein et al. J Trauma 1996
72. Wound ManagementWound Management
After the Fasciotomy, a bulky compression dressingAfter the Fasciotomy, a bulky compression dressing
and a splint are applied.and a splint are applied.
““VAC” (Vacuum Assisted Closure) can be usedVAC” (Vacuum Assisted Closure) can be used
Foot should be placed in neutral to prevent equinusFoot should be placed in neutral to prevent equinus
contracture.contracture.
Incision for the Fasciotomy usually can be closed afterIncision for the Fasciotomy usually can be closed after
three to five daysthree to five days
74. Wound ManagementWound Management
Wound is not closed at initial surgeryWound is not closed at initial surgery
Second look debridement with considerationSecond look debridement with consideration
for coverage after 48-72 hrsfor coverage after 48-72 hrs
– Limb should not be at risk for further swellingLimb should not be at risk for further swelling
– Pt should be adequately stabilizedPt should be adequately stabilized
– Usually requires skin graftUsually requires skin graft
– DPC possible if residual swelling is minimalDPC possible if residual swelling is minimal
– Flap coverage needed if nerves, vessels, or boneFlap coverage needed if nerves, vessels, or bone
exposedexposed
Goal is to obtain definitive coverage within 7-10Goal is to obtain definitive coverage within 7-10
daysdays
75. Wound ClosureWound Closure
STSGSTSG
Delayed primaryDelayed primary
closure with relaxingclosure with relaxing
incisionsincisions
76. Complications Related toComplications Related to
FasciotomiesFasciotomies
Altered sensation within the margins of the wound (77%)Altered sensation within the margins of the wound (77%)
Dry, scaly skin (40%)Dry, scaly skin (40%)
Pruritus (33%)Pruritus (33%)
Discolored wounds (30%)Discolored wounds (30%)
Swollen limbs (25%)Swollen limbs (25%)
Tethered scars (26%)Tethered scars (26%)
Recurrent ulceration (13%)Recurrent ulceration (13%)
Muscle herniation (13%)Muscle herniation (13%)
Pain related to the wound (10%)Pain related to the wound (10%)
Tethered tendons (7%)Tethered tendons (7%)
Fitzgerald, McQueen Br J Plast SurgFitzgerald, McQueen Br J Plast Surg
20002000
77. Complications related toComplications related to
CSCS
Late SequelaeLate Sequelae
Volkmann’s contractureVolkmann’s contracture
Weak dorsiflexorsWeak dorsiflexors
Claw toesClaw toes
Sensory lossSensory loss
Chronic painChronic pain
AmputationAmputation
78. SummarySummary
Keep a high index of suspicionKeep a high index of suspicion
Treat as soon as you suspect CSTreat as soon as you suspect CS
If clinically evident, do not measureIf clinically evident, do not measure
FasciotomyFasciotomy
– Reliable, safe, and effectiveReliable, safe, and effective
– The only treatment for compartmentThe only treatment for compartment
syndrome,syndrome,
when performed in timewhen performed in time
79. VOLKMANN’S ISCHAEMICVOLKMANN’S ISCHAEMIC
CONTRACTURESCONTRACTURES
Contracture results from insufficient arterial perfusion &Contracture results from insufficient arterial perfusion &
venous stasis followed by ischemic degeneration ofvenous stasis followed by ischemic degeneration of
muscle;muscle;
- irreversible muscle necrosis begins after 4-6 hrs;- irreversible muscle necrosis begins after 4-6 hrs;
- Resulting edema impairs circulation, leads to- Resulting edema impairs circulation, leads to
forearmforearm comapartmentcomapartment syndromesyndrome, which propagates, which propagates
progressive muscle necrosis;progressive muscle necrosis;
- Muscle degeneration is most affected at the- Muscle degeneration is most affected at the
middle third of muscle belly, being most severe closermiddle third of muscle belly, being most severe closer
to bone;to bone;
80. -- There is less involvement toward theThere is less involvement toward the
proximal & distal surfaces;proximal & distal surfaces;
- Necrosis of the muscle with- Necrosis of the muscle with
secondary fibrosis that may developsecondary fibrosis that may develop
followed by calcification in its finalfollowed by calcification in its final
phasephase
81. AnatomyAnatomy
- distal to Lacertus fibrosus --Brachial- distal to Lacertus fibrosus --Brachial
artery branches into Radial & Ulnar artery.artery branches into Radial & Ulnar artery.
- Radial artery is superficially located,- Radial artery is superficially located,
whereas ulnar artery is deeply situated,whereas ulnar artery is deeply situated,
traversing deep to pronator teres muscles.traversing deep to pronator teres muscles.
- Ulnar artery gives rise to the common- Ulnar artery gives rise to the common
interosseous artery, which divides immediatelyinterosseous artery, which divides immediately
into anterior & PIN branches.into anterior & PIN branches.
- Flexor digitorum longus and the Flexor- Flexor digitorum longus and the Flexor
pollicis longus muscles derive their bloodpollicis longus muscles derive their blood
supply thru anterior interosseous artery.supply thru anterior interosseous artery.
82. PathoanatomyPathoanatomy
- Infarct has ellipsoid shape with its axis along- Infarct has ellipsoid shape with its axis along
anterior interosseous artery & its central point slightlyanterior interosseous artery & its central point slightly
above middle of the forearmabove middle of the forearm
- Therefore, the muscles most dependent on- Therefore, the muscles most dependent on
the Anterior Interosseous artery (FDP, FPL, FDS, andthe Anterior Interosseous artery (FDP, FPL, FDS, and
the pronator teresthe pronator teres
- FDP and FDS muscles become contracted- FDP and FDS muscles become contracted
and are replaced by scar, which leads to wrist flexionand are replaced by scar, which leads to wrist flexion
contracture and clawing of the fingerscontracture and clawing of the fingers
- In addition to muscle necrosis, there will also- In addition to muscle necrosis, there will also
be injury to the Median and Ulnar nerves leading tobe injury to the Median and Ulnar nerves leading to
High Ulnar nerve and Median nerve palsyHigh Ulnar nerve and Median nerve palsy
83. FingersFingers
- may lie in intrinsic minus- may lie in intrinsic minus
position (due to high nerve palsy)position (due to high nerve palsy)
- alternatively, the fingers - alternatively, the fingers
may lie in an intrinsic plus positionmay lie in an intrinsic plus position
(MP's flexed, PIP extended), if there(MP's flexed, PIP extended), if there
has been a concomitant compartmenthas been a concomitant compartment
syndrome of the hand resulting insyndrome of the hand resulting in
intrinsic contractureintrinsic contracture
Editor's Notes
Surgical decompression does not reverse the damage present but can prevent secondary sequella of the CS. Fasciotomies destabilize any long bone or extremity fracture. Studies have shown ex-fix and URN in tibias may provide temporary or permanent fixation for treatment of the fracture.
These are indications for surgical decompression. A missed CS &gt; 24-48 hours should not be opened. (see Rockwood and Green 5th edition and Campbell’s 10 th edition) The damage cannot be reversed and there is a significant infection rate when the dead tissue is exposed to the hospital environment. The surgeon must deal with the residual contractures of the ischemic muscle and not risk the chance of infection. Some have suggested that the scarred ant tib muscle can serve as a check rein and limit foot drop sequelae.
Four compartments of the leg contain these names muscles and corresponding arteries and nerves. Complete release of all four compartments is mandatory. Physical exam based on sensory loss may be useful in exercise induced CS. The nerves are the most sensitive to ischemic changes.
Volar approach use Henry Approach to release superficial and deep flexors flexors followed by the pronators and supinator. The dorsal approach is centered over the proximal forearm and can be used to release the Mobile Wad (BR, ECRL,ECRB). It is important to remember when treating and electrical injury with a compartment syndrome, the most damage is deep along the bone (i.e. the Pro and Sup muscles) and may require debridement at the initial surgery…Do not miss this!
Volar approach use Henry Approach to release superficial and deep flexors flexors followed by the pronators and supinator. The dorsal approach is centered over the proximal forearm and can be used to release the Mobile Wad (BR, ECRL,ECRB). It is important to remember when treating and electrical injury with a compartment syndrome, the most damage is deep along the bone (i.e. the Pro and Sup muscles) and may require debridement at the initial surgery…Do not miss this!
Compartment syndromes do occur in the foot and must not be overlooked in the polytrauma patient, neurologically impaired, or assumed to be swelling and edema. Authors disagree about the number of actual compartments in the multiple layers of the foot. Clinical suspicion should be heightened with crush injuries, LisFranc injuries and looked for in the polytrauma or unconscious patient.
Dorsal incisions placed over 1st and 3rd web space, can be used to decompress and reduce and fix fractures. Medial incision releases medial compartment and affords access to the base of the hallux
DeCoster, T. Miller, R. Management of Traumatic Foot Wounds. J of AAOS 12; 4 226-230 Jul/Aug 1994.