title: Morphofunctional Changes in the Tibial and Peroneal Nerves in Shin Lengthening Using High Speed Daily Distraction Technique.
abstract: A sustained decrease in the M-response amplitudes of m. gastrocnemius and m. tibialis anterior was revealed during experimental orthopedic shin lengthening in dogs using Ilizarov external fixator with an automated drive (distraction 3 mm/day in 120 steps). Transverse contraction of intrafascicular content (by 13.2%), endoneural hypervascularization (by 28-95%), axonal degeneration and myelin decompactization, and destructive changes of no more than 5% fibers were detected in the tibial nerve. In the peroneal nerve, the contraction reached 17.3%. Endoneurium hypovascularization (by 12%), axonal degeneration and demyelinization, and destructive changes of more than 20% fibers were detected in 6 of 9 experiments.
authors.affiliation: G. A. Ilizarov Center Repair Traumatology and Orthopedics, Ministry of Health of the Russian Federation, Kurgan, Russia. varstn@mail.ru.
authors.forename: T N
authors.initials: TN
authors.lastname: Varsegova
authors.affiliation: G. A. Ilizarov Center Repair Traumatology and Orthopedics, Ministry of Health of the Russian Federation, Kurgan, Russia.
authors.forename: N A
authors.initials: NA
authors.lastname: Shchudlo
authors.affiliation: G. A. Ilizarov Center Repair Traumatology and Orthopedics, Ministry of Health of the Russian Federation, Kurgan, Russia.
authors.forename: M M
authors.initials: MM
authors.lastname: Shchudlo
authors.affiliation: G. A. Ilizarov Center Repair Traumatology and Orthopedics, Ministry of Health of the Russian Federation, Kurgan, Russia.
authors.forename: M S
authors.initials: MS
authors.lastname: Saifutdinov
authors.affiliation: G. A. Ilizarov Center Repair Traumatology and Orthopedics, Ministry of Health of the Russian Federation, Kurgan, Russia.
authors.forename: M A
authors.initials: MA
authors.lastname: Stepanov
mesh_terms: D000818:Animals; D001852:Bone Lengthening; D004285:Dogs; D018482:Muscle, Skeletal / Q000294:innervation; D010543:Peroneal Nerve / Q000473:pathology* / Q000503:physiopathology; D013977:Tibia / Q000294:innervation / Q000601:surgery; D013979:Tibial Nerve / Q000473:pathology* / Q000503:physiopathology
keywords: peroneal nerves; shin lengthening; tibial