The use of autologous osteochondral grafts (mosaicplasty) to repair articular cartilage defects is a well-established technique. Between 1998 and 2003, 19 patients with grade IV cartilage defects in the knee joint were treated by mosaicplasty. The average age of these 13 men (68%) and six women (32%) was 33

Prognostic studies-investigating natural history and evaluating the effect of a patient characteristic: High-quality prospective cohort study with >80% follow-up, and all patients enrolled at same time point in disease, Level I.

We recommend our technique of interpositional arthroplasty with the extensor digitorum brevis tendon because it is free of additional donor site morbidity. It can be performed easily without specialized instruments. Also, the use of natural tissue eliminates potential foreign body reactions and risk of infection.

The reduced CIA, CMA, and PFL changes during weight bearing might show reduced foot mobility and plantar fascia elasticity, which may lead to posterior heel pain syndrome.

The coronal fractures of femoral condyles, known as Hoffa fractures, are a rarity. Conservative management often leads to unsatisfactory results and nonunion. In this study, we present a case of a 35-year-old patient with an established nonunion of medial Hoffa fracture of right knee treated with open reduction and internal fixation.