(7), contusion of the lateral femoral condyle
specifically determined the anterior cruciate ligament injury.
Magnetic resonance studies of the sagittal section of the lateral femoral condyle
were described as an indirect finding if there was a 7 mm or greater anterior translocation of the tibia relative to the femur (25).
Caption: Figure 1: Preoperative anteroposterior and lateral radiographs of the knee demonstrated a mild osteoarthritis with a large cystic lesion of the lateral femoral condyle
The joint itself is formed by 4 separate articulations with synovial cavities that intercommunicate: the medial femoral condyle articulates with medial meniscus and tibiotarsus; the lateral femoral condyle
articulates with the lateral meniscus, tibiotarsus, and fibula; the patellar sulcus articulates with the patella; and the proximal tibiotarsus articulates with the fibular head.
Corso presented a case of a 16-year-old boy who sustained a laterally directed blow to his knee, resulting in the patella dislocating and rotating 90 degrees in the vertical plane becoming wedged against the lateral femoral condyle
. An open reduction through a medial parapatellar incision was utilized to dislodge the patella anteriorly into an anatomic position.
Associations have been found between discoid meniscus and lateral femoral condyle
lesions, and with the development of lesions in cases of mechanical axis malalignment.
Longer duration clinical follow-up and tracking of the polyethylene wear that occurs with in vivo function are ongoing to fully characterize the longevity of this design as related to the highly congruent lateral femoral condyle
and widened medial condyle design features (Figures 1 and 2).
Articular cartilage defects may be evaluated, as well as the presence or absence of bone bruising, most often found on the outer border of the lateral femoral condyle
and the inferomedial aspect of the patella.
Morganti, "Large osteochondral fractures of the lateral femoral condyle
in the adolescent: outcome of bioabsorbable pin fixation, " Journal of Bone and Joint Surgery.
It was locked under the outer edge of the lateral femoral condyle
. Imaging studies confirmed the clinical findings and also revealed a minor impaction fracture of lateral femoral condyle
with arthritic changes in the knee joint (Figure 2).
Patients with lesions of 200 [mm.sup.2] or less were more likely to return than were those with larger lesions, but location of the lesion (medial femoral condyle, lateral femoral condyle
, or trochlea) did not affect outcome.
Clinical improvement was seen in 92% of patients treated for medial and lateral femoral condyle
defects, in 89% of those treated for osteochondritis dissecans, in 75% of those treated for defects of the anterior cruciate ligament and femoral condyle, and in 62% of those treated for defects of the patella.