Comparative study of ultrasonography-guided percutaneous A1 pulley release versus blinded percutaneous A1 pulley release.

PURPOSE: The purpose of this study was to compare the results of blind versus ultrasonography-guided percutaneous A1 pulley release for treatment of trigger finger.

METHODS

This prospective study included 21 patients (25 fingers) who underwent blind release and 20 patients (23 fingers) who underwent ultrasonography-guided release. The visual analog scale (VAS) score, proximal interphalangeal joint contracture, complications, and patient satisfaction were compared between the groups.

RESULTS

At the final follow-up, triggering had disappeared in all patients who underwent ultrasonography-guided release, whereas three patients who underwent blind release required revision surgery for postoperative triggering. No complications were observed. VAS score was significantly different between groups at 2 and 4 weeks postoperatively. All patients who underwent ultrasonography-guided release were satisfied, whereas three patients who underwent blind release were not satisfied.

CONCLUSION

Ultrasonography-guided percutaneous A1 pulley release for treatment of trigger finger reduces postoperative pain and complications, such as incomplete release, compared with a blind procedure.