Elijah Zhengyang Cai1, Erin Yiling Teo2, Lim Jing3, Yun Pei Koh1, Tan Si Qian4, Feng Wen3, James Wai Kit Lee1, Eileen Chor Hoong Hing5, Yan Lin Yap6, Hanjing Lee6, Chuen Neng Lee7, Swee-Hin Teoh3, Jane Lim5, Thiam Chye Lim5. 1. Department of Surgery, National University Health System, Singapore. 2. Department of Reproductive Medicine, KK Women's and Children Hospital, Singapore. 3. Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore. 4. Centre for Biomedical Materials Applications and Technology (BIOMAT), Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore. 5. Department of Surgery, National University of Singapore, Singapore. ; Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Health System, Singapore. 6. Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Health System, Singapore. 7. Department of Surgery, National University of Singapore, Singapore. ; Division of Cardiac, Thoracic and Vascular Surgery, Department of Surgery, National University Health System, Singapore.
Abstract
BACKGROUND: The combination of polycaprolactone and hyaluronic acid creates an ideal environment for wound healing. Hyaluronic acid maintains a moist wound environment and accelerates the in-growth of granulation tissue. Polycaprolactone has excellent mechanical strength, limits inflammation and is biocompatible. This study evaluates the safety and efficacy of bio-conjugated polycaprolactone membranes (BPM) as a wound dressing. METHODS: 16 New Zealand white rabbits were sedated and local anaesthesia was administered. Two 3.0×3.0 cm full-thickness wounds were created on the dorsum of each rabbit, between the lowest rib and the pelvic bone. The wounds were dressed with either BPM (n=12) or Mepitel (n=12) (control), a polyamide-silicon wound dressing. These were evaluated macroscopically on the 7th, 14th, 21st, and 28th postoperative days for granulation, re-epithelialization, infection, and wound size, and histologically for epidermal and dermal regeneration. RESULTS: Both groups showed a comparable extent of granulation and re-epithelialization. No signs of infection were observed. There was no significant difference (P>0.05) in wound size between the two groups. BPM (n=6): 8.33 cm(2), 4.90 cm(2), 3.12 cm(2), 1.84 cm(2); Mepitel (n=6): 10.29 cm(2), 5.53 cm(2), 3.63 cm(2), 2.02 cm(2); at the 7th, 14th, 21st, and 28th postoperative days. The extents of epidermal and dermal regeneration were comparable between the two groups. CONCLUSIONS: BPM is comparable to Mepitel as a safe and efficacious wound dressing.
BACKGROUND: The combination of polycaprolactone and hyaluronic acid creates an ideal environment for wound healing. Hyaluronic acid maintains a moist wound environment and accelerates the in-growth of granulation tissue. Polycaprolactone has excellent mechanical strength, limits inflammation and is biocompatible. This study evaluates the safety and efficacy of bio-conjugated polycaprolactone membranes (BPM) as a wound dressing. METHODS: 16 New Zealand white rabbits were sedated and local anaesthesia was administered. Two 3.0×3.0 cm full-thickness wounds were created on the dorsum of each rabbit, between the lowest rib and the pelvic bone. The wounds were dressed with either BPM (n=12) or Mepitel (n=12) (control), a polyamide-silicon wound dressing. These were evaluated macroscopically on the 7th, 14th, 21st, and 28th postoperative days for granulation, re-epithelialization, infection, and wound size, and histologically for epidermal and dermal regeneration. RESULTS: Both groups showed a comparable extent of granulation and re-epithelialization. No signs of infection were observed. There was no significant difference (P>0.05) in wound size between the two groups. BPM (n=6): 8.33 cm(2), 4.90 cm(2), 3.12 cm(2), 1.84 cm(2); Mepitel (n=6): 10.29 cm(2), 5.53 cm(2), 3.63 cm(2), 2.02 cm(2); at the 7th, 14th, 21st, and 28th postoperative days. The extents of epidermal and dermal regeneration were comparable between the two groups. CONCLUSIONS: BPM is comparable to Mepitel as a safe and efficacious wound dressing.
Authors: Jachym Rosendorf; Marketa Klicova; Lenka Cervenkova; Richard Palek; Jana Horakova; Andrea Klapstova; Petr Hosek; Vladimira Moulisova; Lukas Bednar; Vaclav Tegl; Ondrej Brzon; Zbynek Tonar; Vladislav Treska; David Lukas; Vaclav Liska Journal: In Vivo Date: 2021 Mar-Apr Impact factor: 2.155