Coupens S D, Yates C K, Sheldon C, Ward C
Oklahoma Center for Athletes, Oklahoma City.
Am J Sports Med. 1992 May-Jun;20(3):332-5. doi: 10.1177/036354659202000317.
Magnetic resonance imaging was used to evaluate the remaining patellar tendon after its central one-third had been harvested for anterior cruciate ligament reconstruction. Twenty patients were studied at either 6 weeks, 4, 6, 9, or 18 months postoperatively. The average thickness, width, cross-sectional area, and signal intensity of the operated and contralateral non-operated tendons were calculated and compared for each magnetic resonance imaging scan. A significant increase in the thickness was noted at all periods of followup, but no change in width occurred despite the defect being closed at the time of surgery. High signal intensity was present in the early periods, which signified edema and scar tissue. Signal intensity decreased at subsequent follow-up periods until at 18 months the operated tendon appeared normal. These findings indicate that the patellar tendon has the potential to regenerate and remodel in the postoperative period.
采用磁共振成像评估在髌腱中三分之一被采集用于前交叉韧带重建后剩余的髌腱。对20例患者在术后6周、4个月、6个月、9个月或18个月进行研究。在每次磁共振成像扫描时，计算并比较手术侧和对侧未手术肌腱的平均厚度、宽度、横截面积及信号强度。在所有随访期均发现厚度显著增加，但尽管手术时缺损已闭合，宽度并无变化。早期存在高信号强度，提示水肿和瘢痕组织。在随后的随访期信号强度降低，直至18个月时手术侧肌腱外观正常。这些发现表明髌腱在术后有再生和重塑的潜力。
