MEDIAL MENISCUS REPLACEMENT BY A TENDON AUTOGRAFT - EXPERIMENTS IN SHEEP
MEDIAL MENISCUS REPLACEMENT BY A TENDON AUTOGRAFT - EXPERIMENTS IN SHEEP
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DOI：
10.1302/0301-620x.74b6.1447257
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发表时间：
1992-11-01
影响因子：
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通讯作者：
WULKER, N
中科院分区：
文献类型：
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作者：
KOHN, D;WIRTH, CJ;WULKER, N
我们将 20 只骨骼成熟的雌性美利奴羊分为四组，进行了内侧半月板全切除术、髌腱中部三分之一切除术以及右后腿跟腱腱切断术。第一组（对照组）没有进行额外的手术。在其他三组中，内侧半月板被同侧膝盖的髌腱的中三分之一取代。这些动物在3个月（第II组）、6个月（第III组）或12个月（第IV组）时被处死，并通过光学和扫描电子显微镜以及生物力学进行肉眼检查。组织重塑在 12 个月时发生，但肌腱半月板的失效应力和拉伸模量低于正常半月板。我们的证据表明，在绵羊中，用自体肌腱移植物替代半月板可能会降低半月板切除术后发生的退行性变化的严重程度。
In 20 skeletally mature female merino sheep, divided into four groups, we performed total medial meniscectomy, removal of the middle third of the patellar tendon, and tenotomy of the calcaneal tendon of the right hind leg. Group I (control) had no additional procedures. In the other three groups the medial meniscus was replaced by the middle third of the patellar tendon from the ipsilateral knee. The animals were killed at three (group II), six (group III), or 12 months (group IV) and the tendon-meniscus examined macroscopically, by light and scanning electron microscopy, and biomechanically. Remodelling of the tissue had taken place by 12 months but the failure stress and tensile modulus for the tendon-meniscus were lower than for the normal meniscus.Our evidence suggests that, in sheep, replacement of a meniscus by a tendon autograft may decrease the severity of the degenerative changes that occur after meniscectomy.