Treatment of osteochondral fracture of lateral femoral condyle after patella dislocation with anchor absorbable sutures: A new surgical technique and a case report

Osteochondral fracture (OCF) in weight-bearing area of lateral femoral condyle (LFC) is a rare combined injury caused by patellar dislocation. PATIENT CONCERNS: A 15-year-old female student accidentally sprained her right knee while participating in sports activities. The patient felt pain in his right knee and limited movement. After hospitalization, the patients underwent computed tomography scan and magnetic resonance examination. DIAGNOSIS: According to the imaging results, patellar dislocation combined with OCF of LFC was considered in diagnosis. INTERVENTIONS: Through the lateral parapatellar approach, we reduced the osteochondral mass and bundled it with absorbable sutures of anchors. OUTCOMES: The functional and radiographic outcome were satisfactory at 18 months after operation. LESSONS: Anchor absorbable suture bridge fixation for this kind of OCF is not only effective, but also economical.