Clinical and Radiologic Outcomes Following Autologous Osteochondral Transplantation for Lateral Osteochondral Lesions of the Talus

医学 移植 外科 放射科
作者
Sung-Hoo Kim,Byung-Ki Cho,Seung-Myung Choi,Sun‐Ho Kim
出处
期刊:Foot & Ankle International [SAGE]
标识
DOI:10.1177/10711007241308576
摘要

Autologous osteochondral transplantation (AOT) is an option to treat large osteochondral lesions of the talus (OLTs), accompanying subchondral cyst, and previous unsuccessful bone marrow stimulation (BMS) procedures. Although there is extensive literature on the outcomes of surgical interventions for medial osteochondral lesions, research focusing on lateral lesions remains limited. This article presents the intermediate-term clinical and radiologic outcomes following AOT for lateral OLTs. Twenty-eight patients with lateral OLTs were followed up for a minimum of 3 years after AOT. Clinical evaluations included the Foot and Ankle Outcome Score (FAOS) and Foot and Ankle Ability Measure (FAAM). Radiographic assessments evaluated articular surface (subchondral plate) irregularity, progression of degenerative arthritis, and changes in talar tilt and anterior talar translation. The quality of osteochondral graft was evaluated using the Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) score. The average FAOS and FAAM scores significantly increased from 39.6 to 91.2 and from 37.8 to 89.8 points, respectively, at the final follow-up (P < .001). Radiologic assessments revealed 2 patients (7.1%) with articular step-off ≥2 mm and 1 patient (3.6%) with progressive arthritis. The average MOCART score reached 92.8 points. Postoperative complications included 2 patients with wound problems, 1 with a superficial peroneal nerve injury, and 1 with donor site morbidity. The rate of return to preinjury level of sports activity was 82.1%. At a mean follow-up of 68.5 months, no patient required reoperation for OLT or recurrent ankle instability. AOT for lateral OLTs demonstrated favorable intermediate-term clinical and radiologic outcomes. Most lateral OLTs were accessible via lateral ankle ligament division and capsulotomy, with minimal occurrence of iatrogenic complications such as recurrent ankle instability. AOT appears to be an effective surgical option for patients with large lateral osteochondral lesions unresponsive to conservative treatment, large subchondral cysts, and prior unsuccessful BMS procedures.

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