Harris N L, Smith D A, Lamoreaux L, Purnell M
Department of Orthopaedics, CU Sports Medicine Clinic, University of Colorado Health Sciences Center, Denver 80222, USA.
Am J Sports Med. 1997 Jan-Feb;25(1):23-8. doi: 10.1177/036354659702500105.
We examined the anatomic and biomechanical adequacy of the central quadriceps tendon as an alternative graft source for anterior cruciate ligament reconstruction. Morphometry was performed on 15 preserved and 6 fresh-frozen specimens. Biomechanical testing was performed on the six fresh-frozen specimens. We initially used a triple suture through the tendon construction, and then clamping directly on the tendon. Morphometry yielded the following measurements: length, 6.1 +/- 1.0 cm; width, 2.7 cm (range, 2.1 to 3.7); and thickness, 7 mm (range, 6.4 to 7.8). The thickness was 1.8 times that of the patellar tendon. Biomechanical testing showed that suture failure occurred at 692 +/- 181 N, and tendon failure occurred at 1075 +/- 449 N. The load to tendon failure was 1.36 times that of a comparable-width patellar tendon graft, although the difference was not statistically significant. The failure mode was primarily through partial or complete tendinous avulsion, with only one specimen failing at midsubstance. These findings show the central quadriceps graft is of sufficient size and strength to be used for anterior cruciate ligament reconstruction.
我们研究了中央股四头肌肌腱作为前交叉韧带重建替代移植物来源的解剖学和生物力学适应性。对15个保存标本和6个新鲜冷冻标本进行了形态学测量。对6个新鲜冷冻标本进行了生物力学测试。我们最初通过肌腱结构使用三重缝合，然后直接夹在肌腱上。形态学测量结果如下：长度6.1±1.0厘米；宽度2.7厘米（范围2.1至3.7）；厚度7毫米（范围6.4至7.8）。厚度是髌腱的1.8倍。生物力学测试表明，缝合失败发生在692±181牛顿时，肌腱失败发生在1075±449牛顿时。尽管差异无统计学意义，但肌腱失败的负荷是同等宽度髌腱移植物的1.36倍。失败模式主要是部分或完全腱性撕脱，只有一个标本在肌腱中部失败。这些发现表明中央股四头肌移植物具有足够的尺寸和强度用于前交叉韧带重建。
