Comparison of non-compression and compression interlocking intramedullary nailing in rabbit femoral shaft osteotomy model.
| Autor: | Baki ME; Department of Orthopedics and Traumatology, Medical Faculty of Karadeniz Technical University, 61080 Trabzon Turkey. bakiemre61@yahoo.com., Aldemir C, Duygun F, Doğan A, Kerimoğlu G |
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| Jazyk: | angličtina |
| Zdroj: | Eklem hastaliklari ve cerrahisi = Joint diseases & related surgery [Eklem Hastalik Cerrahisi] 2017 Apr; Vol. 28 (1), pp. 7-12. |
| DOI: | 10.5606/ehc.2017.54333 |
| Abstrakt: | Objectives: This study aims to compare non-compression and compression intramedullary nailing in an experimental femoral shaft osteotomy model in terms of radiological, histological, and biomechanical aspects. Materials and Methods: Twenty-four white New Zealand rabbits (average weight 4.3 kg; range 4 to 4.8 kg) were divided into three groups. A right femoral osteotomy was performed in all rabbits and all femurs were fixed with titanium compression interlocking intramedullary nail. After locking of nails, no compression was performed in group 1 while 0.5 mm and 1 mm compressions were performed in group 2 and 3, respectively. All rabbits were sacrificed four weeks after operation. Fracture sites were examined histologically and radiologically. Finite element analyses were performed. Results: Radiological scores of groups 2 and 3 were significantly higher than group 1. There was no significant difference between groups 2 and 3 radiologically. Best histological scores were achieved in group 2. According to finite element analyses, osteotomy site in group 2 was exposed to 1240 N of load and 34.5 MPa of mean stress. Conclusion: Compression interlocking intramedullary nailing provides faster fracture healing than non-compression interlocking intramedullary nailing. Best histological fracture healing scores were obtained with 0.5 mm compression performed at the fracture site. |
| Databáze: | MEDLINE |
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