Cooper D E
W. B. Carrell Memorial Clinic, Dallas, TX 75204, USA.
Knee Surg Sports Traumatol Arthrosc. 1998;6 Suppl 1:S16-9. doi: 10.1007/s001670050217.
The results of this study suggest that the central third of the patellar tendon may be stronger than previously reported. The mean ultimate load of a 15-mm bone-patellar tendon-bone composite was 4389 N (+/- 709 N); of the 10-mm wide composites, 2977 N (+/- 516 N); and of the 7-mm composites, 2238 N (+/- 316 N). Twisting the graft 90 degrees increased the strength (P < 0.05). Further twisting to 180 degrees had no significant effect compared with twisting to 90 degrees. This study supports the practice of using smaller (10 mm) bone-patellar tendon-bone grafts to avoid the potential complications of patellar fracture and graft impingement in the notch, and suggests the value of rotating the graft prior to tibial fixation.
本研究结果表明，髌腱中央三分之一的强度可能比先前报道的更强。15毫米骨-髌腱-骨复合体的平均极限载荷为4389牛（±709牛）；10毫米宽复合体的平均极限载荷为2977牛（±516牛）；7毫米复合体的平均极限载荷为2238牛（±316牛）。将移植物扭转90度可增加强度（P<0.05）。与扭转90度相比，进一步扭转至180度没有显著影响。本研究支持使用较小（10毫米）骨-髌腱-骨移植物以避免髌骨骨折和移植物在切迹处撞击的潜在并发症的做法，并表明在胫骨固定前旋转移植物的价值。
