软组织重建术治疗桡尺远侧关节不稳的生物力学研究

发布时间：2019-01-01 08:55

【摘要】：目的比较2种软组织重建术式重建桡尺远侧关节稳定性的生物力学效果,为临床应用提供依据。方法选取8具成人上肢标本,通过制作损伤模型、模拟手术方式,比较正常组、损伤组、掌长肌腱组、桡侧腕屈肌组分别在腕背伸30°位、腕中立位、腕掌屈30°位时旋前、旋后时扭矩的变化。结果损伤组和正常组比较的旋前、旋后扭矩差异均有统计学意义(P0.05);掌长肌腱组和正常组比较的差异无统计学意义;桡侧腕屈肌组在腕关节背伸30°、腕中立位时和正常组比较的旋前、旋后扭矩差异均无统计学意义,而在腕关节掌屈30°时的扭矩差异有统计学意义(P0.05)。结论桡尺韧带损伤会造成桡尺远侧关节不稳,通过掌长肌腱移植重建后可恢复关节稳定性,而经过部分桡侧腕屈肌重建后,其在腕背伸30°和腕中立位时的稳定性得到恢复,但在腕掌屈30°时仍存在关节不稳。
[Abstract]:Objective to compare the biomechanical effects of two types of soft tissue reconstruction for the reconstruction of distal radioulnar joint. Methods 8 adult upper limb specimens were selected and compared with normal group, injury group, palmar longus tendon group, flexor Carpi radialis group in 30 掳position, neutral position of wrist, 30 掳position of wrist palmar flexion, and 30 掳position of wrist flexion. The change in torque during rotation. Results there were significant differences in pronation torque and pronation torque between the injured group and the normal group (P0.05), but there was no significant difference between the palmar longus tendon group and the normal group. There was no significant difference in the torque of pronation and supination between the flexor carpal flexor group and the normal group at 30 掳dorsal extension and wrist neutral position, but the torque difference was significant at 30 掳wrist metacarpal flexion (P0.05). Conclusion the injury of the radial ulnar ligament can cause instability of the distal radioulnar joint, and the stability of the joint can be restored after the reconstruction of the palmar longus tendon, and the stability of the flexor Carpi flexor muscle at 30 掳dorsal extension of the wrist and the neutral position of the wrist can be recovered after partial reconstruction of the flexor Carpi radialis muscle. But there is still instability at 30 掳of wrist flexion.
【作者单位】：南华大学教学医院广东省第二人民医院;
【分类号】：R687;R318.01

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