Kiss Z S, Kellaway D P, Cook J L, Khan K M
East Melbourne Radiology, Mercy Private Hospital, East Melbourne, Australia.
Australas Radiol. 1998 Feb;42(1):28-32. doi: 10.1111/j.1440-1673.1998.tb00559.x.
The patellar tendon donor site of 20 patients who underwent anterior cruciate ligament (ACL) reconstruction using the patellar tendon tissue as autograft was examined with high resolution 7.5 MHz ultrasound. The patients were randomly divided into four groups and studied at 3, 6, 9 or 12 months postoperatively. The size of the postoperative tendon defect was measured just distal to the lower pole of the patella. The size of the tendon defect diminished progressively from a mean of 109 mm2 at 3 months to a mean of 23 mm2 at 12 months. Increasing echogenicity was first noticed 12 months after tendon repair. Seven patients developed clinical features postoperatively of jumper's knee (patellar tendinosis). There were no ultrasound signs that differentiated these patients from asymptomatic patients. It is concluded that ultrasound provides objective evidence of patellar tendon healing after ACL reconstruction: the surgical defect diminished in size and became echogenic after a period of 12 months.
对20例采用髌腱组织作为自体移植物进行前交叉韧带（ACL）重建的患者的髌腱供区，使用7.5MHz高分辨率超声进行检查。患者被随机分为四组，分别在术后3、6、9或12个月进行研究。在髌骨下极远侧测量术后肌腱缺损的大小。肌腱缺损大小从术后3个月时的平均109mm²逐渐减小至12个月时的平均23mm²。肌腱修复12个月后首次发现回声增强。7例患者术后出现了跳跃膝（髌腱病）的临床特征。没有超声征象能将这些患者与无症状患者区分开来。结论是，超声为ACL重建术后髌腱愈合提供了客观证据：手术缺损在12个月后尺寸减小并出现回声增强。
