Abstract
Steroid-induced osteonecrosis of the femoral condyle is a relatively uncommon condition and is often difficult to select appropriate treatment especially in young patients. Three young men (aged 25, 18, and 24) presented with severe pain and dysfunction of the knee diagnosed as steroid-induced osteonecrosis of the femoral condyle by magnetic resonance imaging (MRIs). Full-thickness cartilage defects sized 20 × 10, 15 × 10, and 30 × 20 mm respectively were classified as International Cartilage Repair Society Grade IV lesions and treated with osteochondral autograft transplantation. They were treated successfully with osteochondral autograft transplantation certificated by post-operative MRI and second look arthroscopy.
Highlights
Steroid-induced osteonecrosis of the femoral condyle is a relatively uncommon condition and its clinical course and established treatment remain controversial, mainly because of the limited number of cases [1,2]
Osteochondral autograft transplantation enables the restoration of articular cartilage and cartilage regeneration is expected
There are few literatures described of clinical course and prognosis of steroid-induced osteonecrosis of the femoral condyle
Summary
Steroid-induced osteonecrosis of the femoral condyle is a relatively uncommon condition and its clinical course and established treatment remain controversial, mainly because of the limited number of cases [1,2]. X-rays and MRIs one year after surgery showed the restoration of the articular cartilage surface and good engraftment of the graft (Figure 2C-E). X-rays and MRIs taken two years after surgery showed the restoration of the articular cartilage surface and good engraftment of the graft (Figure 4C-E). A second-look arthroscopy performed two years after surgery showed that the lesion was covered with cartilageous tissue even though a part of the non-grafting site at the posterior aspect of the defect. Case 2 An 18-year-old man suffering from severe left knee pain had received a renal transplant because of focal segmental glomerulosclerosis and was subsequently diagnosed with steroid-induced osteonecrosis of the medial femoral condyle. Case 3 A 24-year-old man suffering from severe right knee pain had received a renal transplant because of focal segmental glomerulosclerosis and was subsequently diagnosed with steroid-induced osteonecrosis of the medial femoral condyle. The patient had no pain and no restriction in daily activities and the Lysholm score had improved from 64 to 100 six months after surgery
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