Outcomes of short-gap sensory nerve injuries reconstructed with processed nerve allografts from a multicenter registry study

Brian D. Rinker, John Ingari, Jeffrey A. Greenberg, Wesley P. Thayer, Bauback Safa, Gregory M. Buncke

Research output: Contribution to journalArticle

Abstract

Abstract Background Short-gap digital nerve injuries are a common surgical problem, but the optimal treatment modality is unknown. A multicenter database was queried and analyzed to determine the outcomes of nerve gap reconstructions between 5 and 15 mm with processed nerve allograft. Methods The current RANGER registry is designed to continuously monitor and compile injury, repair, safety, and outcomes data. Centers followed their own standard of care for treatment and follow-up. The database was queried for digital nerve injuries with a gap between 5 and 15 mm reporting sufficient follow-up data to complete outcomes analysis. Available quantitative outcome measures were reviewed and reported. Meaningful recovery was defined by the Medical Research Council Classification (MRCC) scale at S3-S4 for sensory function. Results Sufficient follow-up data were available for 24 subjects (37 repairs) in the prescribed gap range. Mean age was 43 years (range, 23-81). Mean gap was 11 ± 3 (5-15) mm. Time to repair was 13 ± 42 (0-215) days. There were 25 lacerations, 8 avulsion/amputations, 2 gunshots, 1 crush injury, and 1 injury of unknown mechanism. Meaningful recovery, defined as S3-S4 on the MRCC scales, was reported in 92% of repairs. Sensory recovery of S3+ or S4 was observed in 84% of repairs. Static 2PD was 7.1 ± 2.9 mm (n = 19). Return to light touch was observed in 23 out of 32 repairs reporting Semmes-Weinstein monofilament outcomes (SWMF). There were no reported nerve adverse events. Conclusion Sensory outcomes for processed nerve allografts were equivalent to historical controls for nerve autograft and exceed those of conduit. Processed nerve allografts provide an effective solution for short-gap digital nerve reconstructions.

Original languageEnglish (US)
Pages (from-to)384-390
Number of pages7
JournalJournal of Reconstructive Microsurgery
Volume31
Issue number5
DOIs
StatePublished - Apr 20 2015
Externally publishedYes

Fingerprint

Multicenter Studies
Allografts
Registries
Wounds and Injuries
Biomedical Research
Databases
Lacerations
Autografts
Touch
Standard of Care
Amputation
Outcome Assessment (Health Care)
Safety
Therapeutics

Keywords

  • digital nerve
  • nerve reconstruction
  • peripheral nerve
  • processed nerve allograft

ASJC Scopus subject areas

  • Surgery

Cite this

Outcomes of short-gap sensory nerve injuries reconstructed with processed nerve allografts from a multicenter registry study. / Rinker, Brian D.; Ingari, John; Greenberg, Jeffrey A.; Thayer, Wesley P.; Safa, Bauback; Buncke, Gregory M.

In: Journal of Reconstructive Microsurgery, Vol. 31, No. 5, 20.04.2015, p. 384-390.

Research output: Contribution to journalArticle

Rinker, Brian D. ; Ingari, John ; Greenberg, Jeffrey A. ; Thayer, Wesley P. ; Safa, Bauback ; Buncke, Gregory M. / Outcomes of short-gap sensory nerve injuries reconstructed with processed nerve allografts from a multicenter registry study. In: Journal of Reconstructive Microsurgery. 2015 ; Vol. 31, No. 5. pp. 384-390.
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AU - Rinker, Brian D.

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AU - Greenberg, Jeffrey A.

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AU - Safa, Bauback

AU - Buncke, Gregory M.

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N2 - Abstract Background Short-gap digital nerve injuries are a common surgical problem, but the optimal treatment modality is unknown. A multicenter database was queried and analyzed to determine the outcomes of nerve gap reconstructions between 5 and 15 mm with processed nerve allograft. Methods The current RANGER registry is designed to continuously monitor and compile injury, repair, safety, and outcomes data. Centers followed their own standard of care for treatment and follow-up. The database was queried for digital nerve injuries with a gap between 5 and 15 mm reporting sufficient follow-up data to complete outcomes analysis. Available quantitative outcome measures were reviewed and reported. Meaningful recovery was defined by the Medical Research Council Classification (MRCC) scale at S3-S4 for sensory function. Results Sufficient follow-up data were available for 24 subjects (37 repairs) in the prescribed gap range. Mean age was 43 years (range, 23-81). Mean gap was 11 ± 3 (5-15) mm. Time to repair was 13 ± 42 (0-215) days. There were 25 lacerations, 8 avulsion/amputations, 2 gunshots, 1 crush injury, and 1 injury of unknown mechanism. Meaningful recovery, defined as S3-S4 on the MRCC scales, was reported in 92% of repairs. Sensory recovery of S3+ or S4 was observed in 84% of repairs. Static 2PD was 7.1 ± 2.9 mm (n = 19). Return to light touch was observed in 23 out of 32 repairs reporting Semmes-Weinstein monofilament outcomes (SWMF). There were no reported nerve adverse events. Conclusion Sensory outcomes for processed nerve allografts were equivalent to historical controls for nerve autograft and exceed those of conduit. Processed nerve allografts provide an effective solution for short-gap digital nerve reconstructions.

AB - Abstract Background Short-gap digital nerve injuries are a common surgical problem, but the optimal treatment modality is unknown. A multicenter database was queried and analyzed to determine the outcomes of nerve gap reconstructions between 5 and 15 mm with processed nerve allograft. Methods The current RANGER registry is designed to continuously monitor and compile injury, repair, safety, and outcomes data. Centers followed their own standard of care for treatment and follow-up. The database was queried for digital nerve injuries with a gap between 5 and 15 mm reporting sufficient follow-up data to complete outcomes analysis. Available quantitative outcome measures were reviewed and reported. Meaningful recovery was defined by the Medical Research Council Classification (MRCC) scale at S3-S4 for sensory function. Results Sufficient follow-up data were available for 24 subjects (37 repairs) in the prescribed gap range. Mean age was 43 years (range, 23-81). Mean gap was 11 ± 3 (5-15) mm. Time to repair was 13 ± 42 (0-215) days. There were 25 lacerations, 8 avulsion/amputations, 2 gunshots, 1 crush injury, and 1 injury of unknown mechanism. Meaningful recovery, defined as S3-S4 on the MRCC scales, was reported in 92% of repairs. Sensory recovery of S3+ or S4 was observed in 84% of repairs. Static 2PD was 7.1 ± 2.9 mm (n = 19). Return to light touch was observed in 23 out of 32 repairs reporting Semmes-Weinstein monofilament outcomes (SWMF). There were no reported nerve adverse events. Conclusion Sensory outcomes for processed nerve allografts were equivalent to historical controls for nerve autograft and exceed those of conduit. Processed nerve allografts provide an effective solution for short-gap digital nerve reconstructions.

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KW - peripheral nerve

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