CLINICAL EVALUATION OF END THREADED INTRAMEDULLARY PINNING FOR MANAGEMENT OF LONG BONE FRACTURES IN CANINES
Loading...
Date
2014-07-17
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CSKHPKV, Palampur
Abstract
The present investigation was undertaken to evaluate the clinical efficacy of end-threaded intramedullary pinning for management of various long bone fractures in canines. The study was carried out in two phases, managing 25 client owned dogs presented with different fractures. Initially, the technique of application of end threaded intramedullary pinning in long bone fractures was standardized in 6 clinical patients presented with long bone fractures. In this phase, end threaded pins of different profiles i.e. positive and negative, were used as the internal fixation technique. These patients, allocated randomly in two groups, when evaluated postoperatively revealed slight pin migration in group-I (negative profile), which resulted in disruption of callus site causing delayed union in one case and large callus formation in other two cases whereas no pin migration was observed in group-II (positive profile). Other observations in group-I was reduced muscle girth and delayed healing time as compared to group-II. In clinical application phase, on the basis of results obtained from standardization phase, 19 client-owned dogs clinically presented with different fracture, implanted with end threaded intramedullary positive profile screw ended self tapping pin. Immediate post-operative radiograph revealed anatomical reduction, good cortical contact and stable implant fixation whereas muscle girth showed an initial decrease followed by a gradual increase over time. The 21st and 42nd day post-op radiographical follow-up revealed no pin migration in any of the cases and there was no bone shortening or fragment collapse. Based upon the above observations, it was concluded that the end threaded intramedullary positive profile screw ended self-tapping pin used for fixation of long bone fractures in canines can resist pin migration, pin breakage and all loads acting on the bone i.e. compression, tension, bending, rotation and shearing to an extent with no post-operative complications. The implant was found economical and can be easily used in field conditions in managing long bone fractures in canines, as compared to other orthopaedic implants.
Description
Keywords
null