James Meeker1, Paul Weinhold, Laurence Dahners. 1. Department of Orthopaedics, University of North Carolina School of Medicine, Chapel Hill, NC 37599-7055, USA. jmeeker@unch.unc.edu
Abstract
OBJECTIVES: We investigated the role of negative pressure therapy (NPT) in postoperative primary wound treatment and closure. To date, extensive evidence exists demonstrating the benefit of negative pressure dressings in the treatment of open wounds; our experiment tested the hypothesis that negative pressure dressings improve healing of closed (sutured) wounds. METHODS: A porcine model was used to collect data on the characteristics of closed wounds after 3 days of treatment with NPTs as compared with control dressings. RESULTS: In six pigs with a total of 56 wounds, load to failure (N/mm) in controls was 0.348 (standard deviation [SD] 0.109) versus NPT at 0.470 (SD, 0.194) with a P value of 0.001; energy to failure (mJ/mm) in controls was 0.85 (SD, 0.378) versus NPT at 1.128 (SD, 0.638) with a P value of 0.035. Blinded grading of clinical wound appearance and cross-sectional hematoma size were also improved at 72 hours. CONCLUSIONS: NPT dressings applied to surgically closed wounds enhance the healing characteristics of porcine wounds at 3 days. CLINICAL RELEVANCE: We have observed that primarily closed surgical wounds may benefit from treatment with NPT. The benefit of using NPTs may be most pronounced in situations in which wounds are closed under tension, involve considerable soft tissue trauma, or may be at risk of subdermal hematoma formation.
OBJECTIVES: We investigated the role of negative pressure therapy (NPT) in postoperative primary wound treatment and closure. To date, extensive evidence exists demonstrating the benefit of negative pressure dressings in the treatment of open wounds; our experiment tested the hypothesis that negative pressure dressings improve healing of closed (sutured) wounds. METHODS: A porcine model was used to collect data on the characteristics of closed wounds after 3 days of treatment with NPTs as compared with control dressings. RESULTS: In six pigs with a total of 56 wounds, load to failure (N/mm) in controls was 0.348 (standard deviation [SD] 0.109) versus NPT at 0.470 (SD, 0.194) with a P value of 0.001; energy to failure (mJ/mm) in controls was 0.85 (SD, 0.378) versus NPT at 1.128 (SD, 0.638) with a P value of 0.035. Blinded grading of clinical wound appearance and cross-sectional hematoma size were also improved at 72 hours. CONCLUSIONS: NPT dressings applied to surgically closed wounds enhance the healing characteristics of porcine wounds at 3 days. CLINICAL RELEVANCE: We have observed that primarily closed surgical wounds may benefit from treatment with NPT. The benefit of using NPTs may be most pronounced in situations in which wounds are closed under tension, involve considerable soft tissue trauma, or may be at risk of subdermal hematoma formation.
Authors: David Cagney; Lydia Simmons; Donal Peter O'Leary; Mark Corrigan; Louise Kelly; M J O'Sullivan; Aaron Liew; Henry Paul Redmond Journal: World J Surg Date: 2020-05 Impact factor: 3.352
Authors: Michael Engelhardt; Norah A Rashad; Christian Willy; Christian Müller; Christian Bauer; Sebastian Debus; Tino Beck Journal: Int Wound J Date: 2018-03-12 Impact factor: 3.315