The Journal of Bone and Joint Surgery, Vol 63, Issue 4 586-591, Copyright © 1981 by Journal of Bone and Joint Surgery, Inc
Salter-Harris type-III fracture of the medial femoral condyle occurring in the adolescent athlete
JS Torg, H Pavlov and VB Morris
This report adds six Salter-Harris type-III fractures of the medial femoral
condyle to the fourteen such fractures that have been previously reported
in the English literature. The injury results from a valgus force applied
to the knee. As the fracture may reduce spontaneously, radiographs may not
be diagnostic and the fracture may be unrecognized or be mistaken for
disruption of the medial collateral ligament. If a fracture is suspected, a
cross-table lateral radiograph should be made in an attempt to detect fat
within the joint fluid and confirm the existence of an intra-articular
fracture. An oblique, tunnel (notch), or over-penetrated radiograph may
demonstrate the fracture. However, if it fails to do so, radiographs made
with valgus stress applied to the knee while the patient is under general
anesthesia may be necessary. In our six patients, satisfactory healing of
the fracture occurred after either spontaneous or manipulative reduction
and subsequent non-weight-bearing immobilization in cylinder cast. Minimum
femoral shortening developed in two patients, late anterior cruciate laxity
was demonstrable in two patients, and one patient required arthrotomy for
removal of an osteochondral fracture fragment.