TRIGGER DIGITS-ASSOCIATED CARPAL TUNNEL SYNDROME: RELATIONSHIP BETWEEN CARPAL TUNNEL RELEASE AND TRIGGER DIGITS
2005
Of 875 idiopathic carpal tunnel syndrome (CTS) cases, 101 (11.5%) required trigger digit release operations within three years before and/or after carpal tunnel release (CTR); these 101 cases were investigated, retrospectively. Trigger digit release (TDR) was performed most often after the CTR, especially within three months. Next most common was at the same time as the CTR. The TDR performance rate after CTR was 5.9%. The nerve conduction study (NCS) comparison between trigger digits-associated CTS and isolated CTS showed that pre-operative distal motor latency was significantly more delayed in trigger digits-associated CTS, while there was no evidence of any difference due to age or gender. The difference of operative method (open or endoscopic procedure) did not influence the incidence rate of trigger digits after the CTR. This study suggested that trigger digits-associated CTS has a previously developed wide-ranging narrowing of the flexor tendon sheath.
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