title: Dynamic observation of biomechanic properties of sciatic nerve at the suture site in rats following repairing.
abstract: To observe the biomechanic properties of the sciatic nerve at the suture site following repairing in rats. The right sciatic nerves of 40 white Sprague-Dawley 300~350 gm rats were exposed, cut and then repaired with 10-0 nylon sutures with four stitches, laced in the epineurium 0, 1, 3, and 6 weeks after operation, the tensile strength of the sciatic nerves were measured, and the data analyzed statistically. The load elongation curves for both the normal unoperated and operated nerves had similar shape. There were significant differences between the tensile strength of the 0th and the 1st, 3rd, and 6th weeks (P < 0.01). No significant difference was found among the 1st, 3rd, and 6th weeks. The tensile strength of the injured nerves recovered 48% of the normal nerve in the 1st week and 54% in 6 weeks after repairing. It may be concluded that the injured nerves can acquire mostly tensile strength stability in 1 week quickly and can maintain this relative tensile strength stability in 6 weeks.
authors.affiliation: Department of Trauma and Orthopedics, People's Hospital of Peking University, Beijing, China. jiangbaoguo@vip.sina.com
authors.forename: Baoguo
authors.initials: B
authors.lastname: Jiang
authors.forename: Peixun
authors.initials: P
authors.lastname: Zhang
authors.forename: Jiazhi
authors.initials: J
authors.lastname: Yan
authors.forename: Hongbo
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000818:Animals; D007103:Immobilization; D009416:Nerve Regeneration; D051381:Rats; D017207:Rats, Sprague-Dawley; D012421:Rupture; D012584:Sciatic Nerve / Q000293:injuries* / Q000502:physiology / Q000601:surgery*; D013537:Sutures; D013718:Tensile Strength; D014945:Wound Healing