Gisslèn K, Gyulai C, Söderman K, Alfredson H
Umea University, Umea, Sweden.
Br J Sports Med. 2005 May;39(5):298-301. doi: 10.1136/bjsm.2004.014290.
Jumper's knee is a common and troublesome condition among senior volleyball players, but its prevalence among elite junior players compared to matched non-sports active controls is not known.
To clinically, and by sonography, examine the patellar tendons in elite junior volleyball players (15-19 years) at the Swedish National Centre for volleyball and in matched controls.
The patellar tendons in the 57 students at the Swedish National Centre for high school volleyball and in 55 age, height, and weight matched not regularly sports active controls were evaluated clinically and by grey scale ultrasonography (US) and power Doppler (PD) sonography.
There were no significant differences in mean age, height, and weight between the volleyball players and the controls. In the volleyball group, jumper's knee was diagnosed clinically and by US in 12 patellar tendons (10 male and two female). In 12/12 tendons, PD sonography demonstrated a neovascularisation in the area with structural tendon changes. In another 10 pain free tendons, there were structural tendon changes and neovessels. In the control group, no individual had a clinical diagnosis of jumper's knee. US demonstrated structural tendon changes in 11 tendons, but there was no neovascularisation on PD sonography.
A clinical diagnosis of jumper's knee, together with structural tendon changes and neovascularisation visualised with sonography, was seen among Swedish elite junior volleyball players but not in matched not regularly sports active controls. Structural tendon change alone was seen in 10% of the control tendons.
跳跃膝在成年排球运动员中是一种常见且棘手的病症，但与匹配的非运动活跃对照组相比，其在精英青少年运动员中的患病率尚不清楚。
在瑞典国家排球中心，对精英青少年排球运动员（15 - 19岁）及其匹配的对照组进行临床和超声检查，以评估髌腱情况。
对瑞典国家高中排球中心的57名学生以及55名年龄、身高和体重匹配的非定期运动活跃对照组进行临床评估，并采用灰阶超声（US）和能量多普勒（PD）超声检查髌腱。
排球运动员和对照组在平均年龄、身高和体重方面无显著差异。在排球组中，临床诊断和超声检查诊断出12条髌腱（10名男性和2名女性）患有跳跃膝。在这12条髌腱中，PD超声显示在髌腱结构改变区域有新生血管形成。另外10条无痛的髌腱存在结构改变和新生血管。在对照组中，无人被临床诊断为跳跃膝。超声检查显示11条髌腱有结构改变，但PD超声未显示新生血管形成。
在瑞典精英青少年排球运动员中发现了临床诊断为跳跃膝，同时伴有超声可见的髌腱结构改变和新生血管形成，而在匹配的非定期运动活跃对照组中未发现。对照组中10%的髌腱仅出现了结构改变。
