Variations of the median nerve in the carpal canal
- PMID: 3655229
- DOI: 10.1016/s0363-5023(87)80053-9
Variations of the median nerve in the carpal canal
Abstract
Eight hundred twenty-one median nerves were retrospectively and prospectively reviewed for variations during operations to treat carpal tunnel syndrome. Ninety-two cadaver median nerves were also dissected to document the incidence of variations within the carpal canal. The combined incidence of anomalies at operation (Lanz groups 1 to 4) was 9.8% and in the cadaver series 18%. The discrepancy reported by Poisel, 54% in the Lanz group 1 series, versus ours of 1.42% cannot be explained.
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