Abstract
Osteochondral fracture (OCF) is one of the severe complications following a patellar dislocation. The appropriate fixation method for patients with OCF remains controversial. Eighteen patients who had undergone surgery after a patellar dislocation were recruited retrospectively. Patellar OCF was fixed with an absorbable suture in an unreported method. The medial patellofemoral ligament (MPFL) was repaired or reconstructed if necessary. The Lysholm and Kujala knee scoring systems were used to evaluate the knee function. Imaging examinations were used to confirm the fracture healing. The mean period of follow-up was 36 months. All patients recovered well postoperatively without symptomatic complications. The Lysholm score and the Kujala score improved significantly from 37.6 (SD =6.8) and 45.9 (SD =6.4) preoperatively to 80.9 (SD =7.4) and 89.4 (SD =6.8) postoperatively at the latest follow-up, respectively. Imaging evidence including X-ray and MRI revealed good healing of the OCFs. This study showed satisfactory mid-term outcomes of OCF fixation using absorbable suture, which supports this method's potential to be a novel surgical method in the treatment of patellar OCF caused by a patellar dislocation.
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