摘要
目的探讨腕关节活动度对腕舟骨、大、小多角骨(seaphoid-trapezium-trapezoid,STT)融合体稳定性的影响,了解STT融合术后早期功能锻炼的安全活动范围。方法6具新鲜尸体前臂标本,所有腕关节均先建立舟月骨分离并行STT融合术,然后模拟腕关节的屈、伸、尺偏、桡偏及环转运动。运动前后拍摄腕关节标准正侧位片,测量桡舟角、桡舟间距和舟骨长度,并观察内固定松动、弯曲情况。所有腕关节均采用运动前后自身对照。结果当腕关节屈曲60°、背伸45°、桡偏15°及环转运动前后,桡舟角、桡舟间距、舟骨长度、内固定松动阳性率与对照组相比差异有统计学意义(P<0．05)。尺偏活动时上述各指标与对照组相比差异无统计学意义(P>0．05)。结论腕关节在屈60°、伸45°、桡偏15°范围内运动,对STT 融合体稳定性无影响,但应避免环转运动。
Objective To explore the influence of wrist motion on the stabihty of soaphotrapeziotrapezoid（STT） syzygium. Methods Scapholunate dissociation （SLD） and STT arthrodesis were created in 6 fresh cadaver forearm specimens. The wrists were then subject to flexion/extension, ulnar deviation/radial deviation, and supinafion/ pronation. Anteropesterior view and lateral view were acquired before and after the simulated movement. Then radioseaphoid angle （RSA）, radiosoaphoid interval （RSI） and length of the scaphoid were measured. Loosening and bending of the Kirsehner wires were also observed. Within the subject control was used in the experiment. Comparison was made between those obtained before and after the movement. Results The differences of RSA, RSI, length of scaphoid, and incidence of bent Kirsehner wire were statistically significant when the wrist was subject to 60° flexion, 45°extension, radial 15° deviation, and supination/pronation. However, no significant changes of the aforementioned parameters were found during ulnar deviation, Conclusion The STT sygyzium was stable within the range of 60° flexion, 45°extension, 15° radial deviation, and 30° ulnar deviation. Rotation of the wrist should be avoided.
出处
《中华手外科杂志》
CSCD
北大核心
2006年第3期140-142,共3页
Chinese Journal of Hand Surgery
基金
江苏省"135"工程重点医学人才基金资助项目(RC2003-101)
关键词
腕关节
活动范围
关节
关节融合术
Wrist joint
Range of motion, articular
Athrodesis
