This document defines trauma and fractures, and describes the types and features of fractures and dislocations. It discusses [1] the signs and symptoms of fractures, including pain, swelling, deformity and loss of movement or feeling; [2] the process of fracture healing through callus formation; and [3] factors that can affect healing like age, health, nutrition and circulation. It also provides examples and illustrations of different fracture patterns like transverse, spiral, comminuted, impacted and compression fractures.
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Fractures
1. FRACTURES AND DISLOCATIONS
Dr VARUN SHARMA
RESIDENT IN ORTHOPAEDICS AND TRAUMATOLOGY
OSMANIA GENERAL HOSPITAL
2. Definition of trauma:
Injuries which are caused by
external force or violence. They
may range from minor to major,
obvious to not apparent, single
injury to multiple.
3. When a bone fractures, there is usually
damage to the surrounding area which
may include:
• Damage to muscles
• Tearing of blood & lymph vessels
• Severing of nerves
• Damage to nearby organs
• Laceration of the skin
4. Signs of fracture:
• limited or no movement of a limb
• swelling at the site of injury
• pain at, or distal to, the injury
• bruising at injury site
• deformity of a limb
• no pulse distal to the injury
• loss of feeling at, and distal to, the
injury
6. Fracture Healing
Healing begins when swelling
occurs.
Blood, lymph, & tissue fluids form
a fibrin clot around the fracture.
Soon fibroblasts appear & begin
granulation.
Granulation process helps stabilize
the fracture…….. (continued)
7. Healing (continued)
Calcium is deposited around the
fracture forming a callus.
*The callus is the first phase of
healing which can be
demonstrated radiographically.
Calcified area may be large at first, but
will reduce with use.
Fracture site may be stronger than
before!
15. General types of fractures
(cont.)
• Direct vs Indirect
fracture occurs at the site of
trauma vs away from the impact
point
16. Fracture Alignment
Displacement or apposition =
misalignment of a fracture
(see
note) Other terms denoting misalignment:
• Varus
• Valgus
• Bayonet
32. Splinter fx
Fracture ends are
thin shards or
splinters like
wood.
(gunshot wounds)
33. Stellate fx
Specific to the
patella-
fracture lines
radiate out from
a center point in
a star-like
pattern.
34. Compression fx
Specific to the
vertebrae -
vertebral body
collapses, anterior
aspect is reduced in
height.
From trauma or
demineralization of
bone (old age).
35. Burst fx
C1 ring is C - 1 (atlas)
broken,
fragments move
outward.
Football
injuries, heavy
object dropped
on head.
36. Blowout fx
Orbital floor
collapses
from direct
blow to
eyeball
(fist, baseball)
38. Complicated fx
Fractured bone causes
damage to an internal
organ. Ex. - rib pierces
lung
39. Avulsion fx (chip fx)
Caused by stress to a
joint, ligament, or
tendon. Small piece of
bone is torn away.
Often seen with
dislocations.(see note)
40. NON-TRAUMA FRACTURES
1. Pathologic - bone is weakened by
disease, spontaneous fx’s
(cancer, osteomalacia, osteomyelitis,
Pagets)
2. Stress - caused by prolonged running
or marching - metatarsals fracture.
Difficult to visualize.
41. Pediatric fractures
1. Greenstick (torus) - incomplete
fx, bones more flexible, bends &
fractures only outer edge.
2. Epiphyseal - fractures located at
the site of an epiphysis. Sometimes
with associated dislocation (slipped
epiphysis)
A typical injury encountered by the radiologic technologist is a patient with a fractured hip. The clinical indications (sign) of this pathology is a completely externally rotated foot. If a patient comes to the radiology department with his/her foot lying outward on it’s side, and cannot move the foot without assistance, then the hip is most likely fractured. PROCEED WITH THE UTMOST CAUTION. A AP projection should be taken and checked before moving the patient. (see note)
OUCH!.
A/A = automobile accident MVA = motor vehicle accident (either of these abbreviations may be used at your clinical site) The rest of the terminology you need to look up in a medical dictionary!
Look up the three new terms. Pictures and a radiograph demonstrating them are to follow.
Linear fractures can occur in virtually any bone of the body. (see note)
Note the way the fracture line wraps around the bone, not straight across. In fact you can see that the anterior aspect of the fracture is inferior to the posterior segment, where it forms a point.
This type of fracture is common after a fall where the patient lands on the outstretched hand!
Although some sports coaches or participants may wish to pop a dislocated bone back into place, it is strongly recommended that all dislocations be radiographed first to rule out the presence of avulsion fractures and other pathologies that can occur with the dislocation.