Surgical treatment of congenital central slip hypoplasia
Objective To evaluate the efficacy of the surgical treatment for congenital central slip hypoplasia.Methods We conducted a long-term follow-up on 8 patients(16 fingers)with congenital central slip hypoplasia for a period of more than 3 years.The affected finger underwent tendon advancement or tendon graft based on the distance from the insertion point of the central slip to the interphalangeal joint.The evaluation methods for postoperative follow-up include the angle of extension of the proximal interphalangeal joint of the affected finger,grip function,and complications.Results Among the 16 fingers,8 were of type Ⅰ and underwent tendon advancement,and 8 were of type Ⅱ and underwent tendon graft to repair the central slip.The average preoperative extension angle of the interphalangeal joint was -91°(-80° to -100°).The follow-up period was 3.2 to 5.8 years,with an average of 4.6 years.The average postoperative extension angle of the interphalangeal joint was-19°(0° to -45°).The extension angle of the interphalangeal joint of all affected fingers improved significantly after surgery compared to before surgery(P＜0.05).There was no statistically significant difference in the improvement of proximal interphalangeal joint extension angle between type Ⅰ and type Ⅱ(P=0.918).The grip function of all affected hands improved compared to before surgery.Conclusion The congenital central slip hypoplasia can be treated surgically with tendon advancement or tendon graft.The long-term follow-up had confirmed that both surgical methods could achieve effective functional recovery.
Hand deformities,congenitalTreatment outcomeCentral slipTendon advancementTendon graft
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