There is no consensus in the literature as to the maximum delay for nerve repair following nerve injury. Our aim is to estimate the maximum delay at which a nerve can be successfully reconstructed. Eighteen patients (24 procedures) were operated at more than 12 months (12 to 36) post-injury. Mean age was 38 (17 to 74). There were 18 nerve transfers, four grafts and two secondary sutures for six target muscles. Evaluation of muscle power was scored and assessed against weights starting 12 months follow-up. Finally, two patients had contraction against 7 kg, two against 5 kg, six M4. Two were scored M3 and six were M2, thus 12 good results (67%). This study showed that excellent results could be obtained for nerve repair even after 24 months delay. Further study may be needed to determine the cut-off point of delay after which nerve recovery is unlikely.
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