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Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits

Year 2005, Volume: 39 Issue: 2, 163 - 171, 11.09.2006

Abstract

Objectives: We compared the electrophysiologic and histopathologic results of grafting and distraction methods in the treatment of defective peripheral neural injuries.
Methods: Thirty male white rabbits (age 6 months) were divided into three groups and a circular external fixator (CEF) was applied to the right tibias. In group I (primary repair), the right deep peroneal nerve was cut without inducing any defect and a tibial osteotomy was performed. The remaining groups underwent bone and nerve excision of about 1 cm in the middle third of the tibia. In group II, the defect area was closed acutely with the CEF and the continuity of the nerve was restored. In group III, a nerve graft obtained from the left side was placed in the defect area and an epiperineural repair was made. Group II underwent distraction 21 days after surgery for 10 days with a rate of 0.25 mm four times a day. Electrophysiological studies were performed in the 12th and 24th weeks and nerve biopsies were obtained in the 32nd week for histopathologic examination.
Results: Electrophysiological studies in the 12th week did not show any significant differences in nerve conduction between the three groups; however, in the 24th week, amplitude and latency values of the graft group were 50% lower than those of the primary repair and distraction groups (p<0.05). On histological examination, the results were good in group I and II, but poor in group III with respect to nerve fiber density, thickness of the myelin sheath, degenerative changes in the myelin sheath, and average axon number.
Conclusion: Our data demonstrate that treatment of neural defects by the distraction method results in much better results than the grafting method.

Periferik sinir defektlerinin tedavisinde distraksiyon ve greftleme yöntemlerinin karşılaştırılması: Tavşanda deneysel çalışma

Year 2005, Volume: 39 Issue: 2, 163 - 171, 11.09.2006

Abstract

Amaç: Defektli periferik sinir yaralanmalarının tedavisinde uygulanan greftleme ve distraksiyon yöntemlerinin elektrofizyolojik ve histopatolojik sonuçları karşılaştırıldı.
Çalışma planı: Altı aylık, 30 erkek beyaz tavşan onarlı üç gruba ayrılarak, sağ tibialara önceden hazırlanan sirküler eksternal fiksatör (SEF) cihazı uygulandı. Grup I’de (primer tamir), sağ derin peroneal sinir, defekt oluşturmadan kesildi, tibia osteotomisi uygulandı. Diğer iki grupta tibia 1/3 orta bölgesinden yaklaşık 1 cm kemik ve sinir eksizyonu yapıldı. Grup II’de SEF cihazıyla distal ve proksimal kemik-sinir segmentlerinin teması sağlandı. Grup III’te, sol peroneal sinirden 1 cm’lik greft alınarak sağ peroneal sinirin defektif bölgesine yerleştirildi. Sinirler epiperinöral olarak tamir edildi. Grup II’de 21 gün sonra, 4 x 0.25 mm/gün şeklinde distraksiyona başlandı ve 10 gün uygulandı. Elektrofizyolojik incelemeler 12. ve 24. haftalarda yapıldı; 32. haftada ise alınan sinir biyopsileri histopatolojik olarak incelendi.
Sonuçlar: Elektrofizyolojik incelemelerde, 12. haftadaki sinir ileti hızları gruplar arasında anlamlı farklılık göstermedi; 24. haftada ise, greft grubunda amplitüd ve latans değerleri primer tamir ve distraksiyon gruplarından yaklaşık %50 daha düşük bulundu (p<0.05). Histolojik incelemede, sinir lif yoğunluğu, miyelin kılıf kalınlığı, miyelin kılıfta dejeneratif değişiklik ve ortalama akson sayısı açısından primer tamir ve distraksiyon grupları iyi bulunurken, greft grubu kötü olarak değerlendirildi.
Çıkarımlar: Sinir defektlerinin distraksiyon yöntemiyle tedavisinin, greftleme yönteminden daha başarılı olduğu sonucuna varıldı.

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Details

Primary Language English
Journal Section Experimental Study
Authors

Mustafa Kurklu This is me

Bahtiyar Demiralp This is me

Vecihi Kirdemir This is me

Mahmut Komurcu This is me

Umit Ulas This is me

Emin Oztas This is me

A. Atesalp This is me

Mustafa Basbozkurt This is me

Publication Date September 11, 2006
Published in Issue Year 2005 Volume: 39 Issue: 2

Cite

APA Kurklu, M., Demiralp, B., Kirdemir, V., Komurcu, M., et al. (2006). Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits. Acta Orthopaedica Et Traumatologica Turcica, 39(2), 163-171. https://doi.org/10.3944/aott.v39i2.680
AMA Kurklu M, Demiralp B, Kirdemir V, Komurcu M, Ulas U, Oztas E, Atesalp A, Basbozkurt M. Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits. Acta Orthopaedica et Traumatologica Turcica. September 2006;39(2):163-171. doi:10.3944/aott.v39i2.680
Chicago Kurklu, Mustafa, Bahtiyar Demiralp, Vecihi Kirdemir, Mahmut Komurcu, Umit Ulas, Emin Oztas, A. Atesalp, and Mustafa Basbozkurt. “Comparison Between the Distraction and Grafting Methods in the Treatment of Peripheral Neural Defects: An Experimental Study in Rabbits”. Acta Orthopaedica Et Traumatologica Turcica 39, no. 2 (September 2006): 163-71. https://doi.org/10.3944/aott.v39i2.680.
EndNote Kurklu M, Demiralp B, Kirdemir V, Komurcu M, Ulas U, Oztas E, Atesalp A, Basbozkurt M (September 1, 2006) Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits. Acta Orthopaedica et Traumatologica Turcica 39 2 163–171.
IEEE M. Kurklu, B. Demiralp, V. Kirdemir, M. Komurcu, U. Ulas, E. Oztas, A. Atesalp, and M. Basbozkurt, “Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits”, Acta Orthopaedica et Traumatologica Turcica, vol. 39, no. 2, pp. 163–171, 2006, doi: 10.3944/aott.v39i2.680.
ISNAD Kurklu, Mustafa et al. “Comparison Between the Distraction and Grafting Methods in the Treatment of Peripheral Neural Defects: An Experimental Study in Rabbits”. Acta Orthopaedica et Traumatologica Turcica 39/2 (September 2006), 163-171. https://doi.org/10.3944/aott.v39i2.680.
JAMA Kurklu M, Demiralp B, Kirdemir V, Komurcu M, Ulas U, Oztas E, Atesalp A, Basbozkurt M. Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits. Acta Orthopaedica et Traumatologica Turcica. 2006;39:163–171.
MLA Kurklu, Mustafa et al. “Comparison Between the Distraction and Grafting Methods in the Treatment of Peripheral Neural Defects: An Experimental Study in Rabbits”. Acta Orthopaedica Et Traumatologica Turcica, vol. 39, no. 2, 2006, pp. 163-71, doi:10.3944/aott.v39i2.680.
Vancouver Kurklu M, Demiralp B, Kirdemir V, Komurcu M, Ulas U, Oztas E, Atesalp A, Basbozkurt M. Comparison between the distraction and grafting methods in the treatment of peripheral neural defects: an experimental study in rabbits. Acta Orthopaedica et Traumatologica Turcica. 2006;39(2):163-71.