INTRACAPSULAR
FRACTURE NECK OF
FEMUR
Dr. J H VIDYA SAGAR
MS ( Ortho), DNB, FIJR
ASSISTANT PROFESSOR
OSMANIA MEDICAL COLLEGE
Anatomy
 Physeal closure age 16
 Neck-shaft angle
130° ± 7°
 Anteversion
10° ± 7°
 Calcar Femorale
Posteromedial
dense plate of
bone
calcar
FEMUR ANTEVERSION
Profunda
Femoris artery
gives medial and
lateral
circumflex
arteries
These two form
the Extra
capsular arterial
ring
Blood Supply to Proximal femur
Blood supply to the Femoral
Head
 This arterial ring gives
retinacular vessels
which go along the neck
of the femur so they are
called ascending
cervical arteries
Blood Supply to the femoral head
 These form a ring just
below the head called
the Sub Synovial Intra
Articular arterial ring
 From this intra articular
ring of arteries
epiphyseal vessels go
into the head of the
femur
 Head is also supplied by
the artery of
ligamentum teres
Vascular Anatomy of Femur
Bony Trabecular Pattern in
Proximal Femur
Calcar femorale
Fracture of Neck of Femur
Intra – Capsular Fracture of
Proximal Femur
“We come to the world under the
brim of pelvis and go out of the
world thru the neck of the
femur”
Enigma of an
Orthopedic Surgeon
Types
Intra Capsular –
– Subcapital
– Transcervical
– Basal
Extra Capsular –
– Inter Trochanteric
– Sub Trochanteric
Why fractures of neck fail to heal?
No Cambium layer in the intra capsular area,
so peripheral callus
Synovial fluid lyses the fracture hematoma
Avascularity of the head is imminent due to
the peculiarity in the blood supply
Etiology
Osteoporosis in elderly patients
Usually lateral rotation of femur cracks the
fragile neck and then the patients fall
Osteomalacia in the young
Major trauma in young adults
Fracture of Neck of Femur
Most of these are displaced
A few are impacted.
Anatomical Classification
 Depending on the
place of the fracture
 Into –
– Sub capital
– Trans Cervical
– Basal
Pauwel’s Types
Depends on the angle the fracture line makes with the horizontal
Garden’s Classification
Garden I Garden II
Garden’s Classification
Garden III Garden IV
Garden Classification
I Valgus impacted or
incomplete
II Complete
Non-displaced
III Complete
Partial displacement
IV Complete
Full displacement
Plain Film
– Consider traction-internal
rotation view if comminuted
CT scan
– Displacement
– comminution
Diagnosis
22
MRI
– For evaluation of
occult femoral neck
fracture
• Consider MRI in an
elderly patient who is
persistently unable to
weight bear
– 100% sensitive and
specific
Diagnosis
Treatment Goals:
Geriatric Patients
Mobilize
– Weight bearing as tolerated
– Minimize period of bedrest
Minimize surgical morbidity
– Safest operation
– Decrease chance of reoperation
Treatment
Depends on the age of the patient
Aim in children, young adults and upto
60 Y – save the head
– Risk of non-union and avascular necrosis of the
head is always there
After 60 Years or if the bone is osteoporotic
– replace the head
In patients less than 16 Y
The capital epiphysis is open and viable
Try to protect it
Closed reduction under C-arm control and
fixation with Austin Moore Pins (Smooth)
Patients above 16-18Y
Epiphysis is fused, no more growth
expected
Closed reduction under C-arm control and
fixation with cancellous screws
If it is more than 3 weeks old – fix it and
graft it with muscle pedicle graft
Reduction and Fixation
Good Union after 3 Months
Meyer’s Muscle Pedicle Graft
In old patients
Head is osteoporotic
No chance of healing of fracture
Hemi replacement with
– Austin Moore prosthesis if the calcar is
present
– Thompson's prosthesis if the calcar is
absent
Fracture of Neck in old
Hemireplacement Arthroplasty
Patient is an old geriatric
There will be lot of oteoporosis
Femur will also be weak
The prosthesis may sink
So cemented prosthesis – cement in the
shaft of femur holds the prosthesis from
sinking
Case example
78 Y old lady
H/O trivial fall one month ago
H/O Hemi-replacement on one hip an year
ago
The other one is painful after fall
Case The previous one is the cause of fall???
Case
Problems
 Gross osteoporosis
 Absorbed neck
 Wide medullary canal
Answer
 Cemented prosthetic
replacement
Complications
Post-traumatic arthrosis
• Joint penetration with hardware
• AVN related
Blood Transfusions
– THR > Hemi > ORIF
– Increased rate of post-op infection
DVT / PE
– Multiple prophylactic regimens exist
– Low dose subcutaneous heparin not effective
INTRACAPSULAR FRACTURE NECK OF FEMUR.ppt

INTRACAPSULAR FRACTURE NECK OF FEMUR.ppt

Editor's Notes

  • #21 For plain film-may add internal rotation when radiograph obtained