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OPEN CARPAL TUNNEL RELEASE VERSUS THE ‘STRYKER KNIFELIGHT’: A PROSPECTIVE, RANDOMISED TRIAL

Dept of Orthopaedics, Torbay Hospital, Lawes Bridge, Torquay TQ2 7AR

To compare the results of standard open carpal tunnel release against minimal access release using the ‘Stryker Knifelight’ in the same patients.

A prospective, randomised trial was carried out recruiting all patients with bilateral carpal tunnel syndrome. There were 26 patients (18 females and 8 males), with a mean age of 48 years. The patients were randomised to having the ‘Knifelight’ on one side and therefore acted as their own controls. They were assessed preoperatively, and at 2 and 6 weeks postop by questionnaire, and grip strength measurements.

All sides were improved following release but those done by the open method were more likely to have complete resolution at 6 weeks. In contrast, the ‘Knife-light’ sides had better grip strength and allowed earlier return to work. In terms of preference, the patients were split equally between the 2 techniques. 2 patients had minor complications following minimal access release including one with numbness over the thenar eminence for 6 weeks.

This study shows that open carpal tunnel release remains the ‘gold standard’ but the minimal access technique offers some advantages in terms of quicker recovery.

The abstracts were prepared by Mr Simon Donell. Correspondence should be addressed to him at the Department of Orthopaedics, Norfolk & Norwich Hospital, Level 4, Centre Block, Colney Lane, Norwich NR4 7UY, United Kingdom