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  • Title: Improved Results From Medium- and Long-Term Outcomes of Autogenous Osteoperiosteal Grafting for Large Cystic Lesions of the Talus.
    Author: Li Y, Tang Y, Wang Z, Zheng G, Chen Y, Liao Y, Tao X, Yuan C, Chen W.
    Journal: Arthroscopy; 2024 May; 40(5):1613-1622. PubMed ID: 37821015.
    Abstract:
    PURPOSE: To investigate the medium and long-term follow-up outcomes of large cystic medial osteochondral lesions of the talus (OLTs) treated with autologous tibial osteoperiosteal grafts from the medial tibia and to explore the risk factors influencing the treatment outcomes. METHODS: The retrospective study included 75 patients with large cystic medial OLTs who underwent autologous osteoperiosteal cylinder graft taken from the medial tibia between January 2004 and August 2018. They were assessed preoperatively and postoperatively using a visual analog scale, the Orthopedic Foot & Ankle Society Ankle-Hindfoot Scale (AOFAS), and short-form 36-item Short Form Health Survey score. Magnetic resonance observation of cartilage repair tissue, second-look arthroscopy, and biopsy were used to evaluate the grafting areas. RESULTS: After a follow-up period of 6.3 years, the virtual analog scale score decreased to 1.47 ± 1.32, and the AOFAS and 36-item Short Form Health Survey scores increased to 82.78 ± 11.65 and 83.26 ± 8.49, respectively, all of which showed significant improvement over preoperative scores (P < .001), and the average magnetic resonance observation of cartilage repair tissue score was 82.6 ± 8.4 (56.0-91.6). Eight patients underwent a second-look arthroscopic examination and were rated by the International Cartilage Repair Society scale; of them, 2 patients were rated grade Ⅰ, 4 were rated grade Ⅱ, and 2 were rated grade Ⅲ. Three patients underwent grafting area biopsy during the second-look arthroscopy, and the results showed that the grafting areas were rich in chondrocytes. Large OLTs (≥200 mm2) and obesity (body mass index ≥25) were responsible for the poor improvement of AOFAS score, according to multivariate Cox regression analysis. CONCLUSIONS: Autologous osteoperiosteal grafting was an effective treatment for large cystic medial OLTs, with effective cartilage regeneration in the grafted areas in the medium and long term. However, the large OLTs and obesity may reduce the treatment outcomes. LEVEL OF EVIDENCE: Level IV, case series.
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