Effectiveness of ClearFix Meniscal Screws for Fixation of Osteochondritis Dissecans Lesions in the Knee
Abstract
Osteochondritis dissecans (OD) is a joint disorder involving the separation of a segment of avascular subchondral bone and overlying articular cartilage from the underlying bone. The knee is affected in 75% of cases. Surgery is indicated for OD injuries involving unstable or detached osteochondral fragments or failed conservative methods in cases of juvenile OD. Although many techniques have previously been employed to reattach the lesion, evidence is required to further evaluate the best technique. A review of medical records was undertaken to assess the severity of the injury and effectiveness of the surgery the Guhl scale and Hughston scale. For Guhl score, 18% of the lesions were graded as Type II, 36% of the lesions were graded as Type III, and 46% were graded as Type IV. The average preoperative Guhl score was 3.3. The Hughston preoperative and postoperative scores were 1.5 and 3.9, respectively. The preoperative and postoperative Hughston scores were significantly different (t < .001). In the present study, the fixation of OD lesions using ClearFix meniscal screw showed a 91% success rate. This included 7 surgeries with excellent outcomes and 2 with good outcomes according to the Hughston Scoring Scale. The results from this study have shown the effectiveness of ClearFix meniscal screws in the surgical treatment of OD lesions.
Osteochondritis Dissecans, ClearFix screw
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