DeFoor Mikalyn T, Whicker Emily A, Adriani Marco, Whalen Ryan J, Knezic Noah, Dickinson Nate J, Provencher Matthew T
San Antonio Military Medical Center, Fort Sam, Houston, Texas, U.S.A.
Steadman Philippon Research Institute, Vail, Colorado, U.S.A.
Arthrosc Tech. 2025 Jan 30;14(5):103396. doi: 10.1016/j.eats.2024.103396. eCollection 2025 May.
Surgical techniques that preserve the native meniscus have been investigated in the setting of irreparable meniscal tears, including meniscal allograft transplantation (MAT) and meniscal synthetic scaffolds. Complete MAT removes the entirety of the native meniscal tissue for transplantation with suboptimal long-term survivorship. Similarly, synthetic meniscal scaffolds have shown variable success rates with an inability to regenerate functional tissue or prevent early osteoarthritis. Therefore, segmental MAT techniques have been explored to preserve the healthy, native meniscal biology and decrease knee contact pressures and total surface contact area. Current indications for segmental MAT continue to evolve but may be considered in near-complete or full-thickness segmental meniscal deficiency, generally 1 to 2.5 cm in total meniscal length. Typically, the segmental deficiency is in the posterior or posterior-middle junction of the meniscus. This technique article outlines an arthroscopic technique for lateral segmental meniscal transplantation for an irreparable lateral meniscal oblique radial tear of the posterior horn with a 20-mm segmental defect.
在不可修复的半月板撕裂情况下，人们对保留天然半月板的手术技术进行了研究，包括半月板同种异体移植（MAT）和半月板合成支架。完整的MAT会移除全部天然半月板组织进行移植，但长期存活率不理想。同样，合成半月板支架的成功率也各不相同，无法再生功能性组织或预防早期骨关节炎。因此，人们探索了节段性MAT技术，以保留健康的天然半月板生物学特性，并降低膝关节接触压力和总表面接触面积。目前节段性MAT的适应症仍在不断发展，但对于近乎完全或全层节段性半月板缺损（半月板总长度一般为1至2.5厘米）的情况可予以考虑。通常，节段性缺损位于半月板的后部或后中部交界处。本文介绍了一种关节镜技术，用于治疗后角不可修复的外侧半月板斜行放射状撕裂且伴有20毫米节段性缺损的外侧节段性半月板移植。
