Intraprosthetic Dislocation Following Bipolar Hemiarthroplasty after 4 Years with Squatting and Sitting Cross Legged: A Case Report
Journal Title: Journal of Bone and Joint Diseases - Year 2017, Vol 0, Issue 0
Abstract
Case Report: A 64 year old female sustained injury to her left hip four years back and was diagnosed as subcapital fracture neck of femur for which bipolar hemiarthroplasty left hip was done. Post Op she was asymptomatic for almost 4 years and reported after 4 years of surgery with click heard at her left hip and painful limp on the affected side while attempting to get up from squatting position. Radiographs of the hip was taken which showed intraprosthetic dislocation. The patient was operated with Southern approach with extended trochanteric osteotomy and a revision Total hip Arthroplasty was done. Implant which was retrieved had a failed anti dissociation mechanism.In most reported cases only implant related factors have been considered and discussed with no emphasis on any patient related factors. The current case would be the first to be documented with no history of any dislocation or closed reduction maneuvers in immediate post operative period, and is associated with squatting and sitting cross legged after years of uneventful hip Conclusion:Long term follow up comparison studies between simple unipolar and bipolar prostheses has shown no significant difference in the functional outcome and complication rates. Hence the common use of bipolar implants with a unique complication of intraprosthetic dislocation becomes questionable especially in a developing country like India with a lower economic status of most people. Proper implant selection with individualized approach is a must to avoid long term debility and pain and to ensure patient’s satisfaction and early return to function.
Authors and Affiliations
Pramod Bhilare, Md Sehal Khan Abid, Md Talha Khan Abid, Neeraj Mishra, Sarang Patki, Pravin Bande
Keywords
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