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Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
Published on: January 24, 2018
Complications following osteotomy of the greater trochanter in total hip replacement arthroplasty using the lateral
Insights
Trochanteric fragment migration occurred in 4.9% of Charnley hip replacements. Predisposing factors included wire breakage, fractures, and high weight, with men more affected. Early mobilization did not increase migration risk.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Hip replacement arthroplasties aim to restore function and reduce pain.
- Trochanteric fragment migration is a potential complication following certain hip replacement techniques.
Purpose of the Study:
- To investigate the incidence and predisposing factors of trochanteric fragment migration after Charnley hip replacement.
- To assess the clinical significance and union rates of trochanteric fragments post-surgery.
Main Methods:
- Retrospective analysis of 365 consecutive Charnley hip replacement arthroplasties in 309 patients.
- Identification of migration incidence and correlation with predisposing factors like wire breakage, fractures, weight, and patient sex.
- Evaluation of clinical symptoms and radiographic union rates at 2 and 5 years post-operation.
Main Results:
- Trochanteric fragment migration was observed in 4.9% of cases.
- Predisposing factors included wire breakage, trochanteric fractures, and excessive weight; males were more susceptible.
- Early mobilization with weight-bearing did not elevate migration risk.
- Migration rarely caused significant symptoms.
- Trochanteric union was achieved in 98% of cases by 2 years, with no non-union detected after 5 years.
Conclusions:
- Trochanteric fragment migration is an infrequent complication of Charnley hip arthroplasty.
- Specific patient factors and surgical complications contribute to migration risk.
- The complication generally has a benign clinical course, and trochanteric union is highly successful.
Abstract:
In a consecutive series of 365 hip replacement arthroplasties ad modum Charnley in 309 patients migration of the trochanteric fragment was encountered in 4.9 per cent of the cases. The predisposing factors were wire-breakage, trochanteric fractures and excessive weight. Men were more apt than women to develop migration. Early mobilization with weight-bearing on the operated leg did not increase the risk of migration. The migration rarely gave rise to complaints, and if so only mild ones. Trochanteric union did not pose problems, and at the end of 2 years 98 per cent had united. After 5 years no case of non-union was detected.

