Nixon R G, SeGall G K, Sax S L, Cain T E, Tullos H S
Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA.
Clin Orthop Relat Res. 1995 Aug(317):162-71.
Little is known about the fate of the donor site after the central 1/3 of the patellar tendon is harvested for anterior cruciate ligament reconstruction. This study evaluated the donor site in the patellar tendon at various times after a graft from the central 1/3 of the patellar tendon was harvested. Fourteen patients were studied with magnetic resonance images taken from 6 weeks to 2 years after anterior cruciate ligament reconstruction. Axial, sagittal, and coronal views of the patellar tendon were obtained. A second group of 8 patients who had previous anterior cruciate ligament reconstruction were returned to the operating room for subsequent procedures on the affected knee. These procedures were performed 2 to 24 months after the original reconstruction. An open biopsy was obtained from the donor site in the patellar tendon. On magnetic resonance images, the size of the defect and the intensity of the signal in the central 1/3 of the tendon decreased with time from surgery. At 2 years, the defect was indistinguishable from normal tendon. Histologically, the scar in the defect progressively matured with time, becoming nearly identical to normal tendon at 2 years.
对于在取髌腱中1/3用于前交叉韧带重建后供区的转归情况，人们了解甚少。本研究评估了取自髌腱中1/3的移植物取出后不同时间点髌腱的供区情况。对14例患者在进行前交叉韧带重建术后6周2年进行了磁共振成像检查。获取了髌腱的轴位、矢状位和冠状位图像。第二组8例曾行前交叉韧带重建的患者返回手术室，对患膝进行后续手术。这些手术在初次重建术后224个月进行。从髌腱的供区取了开放活检组织。在磁共振图像上，术后随时间推移，腱中1/3缺损的大小及信号强度降低。至2年时，缺损与正常腱难以区分。组织学上，缺损处的瘢痕随时间逐渐成熟，在2年时几乎与正常腱相同。
