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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Sensory recovery 1 year after bridging digital nerve defects with collagen tubes.
    Author: Haug A, Bartels A, Kotas J, Kunesch E.
    Journal: J Hand Surg Am; 2013 Jan; 38(1):90-7. PubMed ID: 23261191.
    Abstract:
    PURPOSE: To investigate digital nerve regeneration following implantation of collagen tubes in a prospective study. METHODS: Forty-five digital nerve defects (≤ 2.6 cm) in the hand were reconstructed in 35 patients (6 female, 29 male; mean age, 47 y). Nerve regeneration was evaluated at 3, 6, and 12 months after surgery by applying a sum score comprising static 2-point discrimination, sensory threshold with Semmes-Weinstein monofilament mechanical stimuli, warm/cold sensation, vibration sense, sharp/dull recognition, recognition of numbers, and subjective estimation of the patient. Electroneurography and ultrasound were also performed. RESULTS: In the distribution of 60% of the operated nerves, very good or good recovery was found. In contrast to basic sensory function, the more complex static 2-point discrimination was more frequently impaired after 1 year. After 6 months, the sum score correlated with electroneurography. The type of injury altered the final sensory nerve function. Circular saw and iatrogenic injuries showed a negative correlation with final sensory nerve function. Complications (infection) were observed in 2 patients. CONCLUSIONS: Owing to the good functional outcome in the majority of cases, the use of collagen tubes is useful to span digital nerve defects up to 2.6 cm. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.
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