部分指深屈肌腱重建伸肌腱止点撕脱的可行性研究

Feasibility study on reconstruction of extensor tendon by partial flexor deep tendon

目的探讨使用部分指深屈肌腱转位修复伸肌腱止点,重建伸指功能的可行性。方法采用急诊患者肢体毁损伤后截除的废弃指进行实验,取指深屈肌腱Ⅰ区及部分Ⅱ区腱芯中间近端1/5切断,向基底牵拉,于末节指骨基底以2.0 mm钻头打孔,将肌腱条穿孔洞引向背侧拉紧后与自止点撕脱的伸肌腱近断端进行重叠缝合。结果通过在废弃指上牵拉引向背侧的部分指深屈肌腱末节指骨可主动伸直,牵拉掌侧剩余指深屈肌腱,末节指骨可屈曲。结论通过部分指深屈肌腱重建伸肌腱止点撕脱是治疗锤状指一种可行性的方法。

Objective To explore the feasibility of reconstructing the finger extension function by using partial flexor digitorum profundus tendon transposition.Methods Abandoned fingers amputated after limb destruction in emergency patients were used.We cutted off the partial proximal end 1/5 of the tendon core of flexor digitorum profundus tendon at regionⅠand PartⅡ,and pulled the base of the distal digital Phalanx,and punched at the end of the phalanx with 2.0 drill.The tendon strips was pierced to the back,with were overlap sutured to proximal end of the avulsion of the extensor tendon.Results Through pulling to the dorsal part of the flexor deep tendon of abandoned finger the distal phalanx could actively stretch,and pulling to the palmerside residual flexor deep tendon,the distal phalanx could actively flexion.Conclusion The method of reconstructing the extensor tendon by partial flexor deep tendon is a feasible method for the treatment of hammer finger.