Femoral neck buttressing: a radiographic and histologic analysis
| Autor: | Elaine Krupinski, Pamela J. Lund, Tim Dixon, Anna R. Graham, James B. Benjamin |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Male
medicine.medical_specialty Arthroplasty Replacement Hip medicine.medical_treatment Osteoarthritis Prosthesis Osteoarthritis Hip Arthritis Rheumatoid Hip replacement medicine Humans Radiology Nuclear Medicine and imaging Femur Aged Femoral neck Hip surgery Femur Neck business.industry Incidence Middle Aged medicine.disease Arthroplasty Biomechanical Phenomena Surgery Radiography medicine.anatomical_structure Orthopedic surgery Female Hip Joint Radiology business |
| Zdroj: | Skeletal Radiology. 29:587-592 |
| ISSN: | 1432-2161 0364-2348 |
| Popis: | Objective. To examine the incidence, radiographic and histologic findings of medial femoral neck buttressing in a consecutive group of patients undergoing total hip arthroplasty. Design. Biomechanical parameters were evaluated on standard anteroposterior pelvic radiographs of 113 patients prior to hip replacement surgery. Demographic information on all patients was reviewed and histologic evaluation was performed on specimens obtained at the time of surgery. Results. The incidence of medial femoral neck buttressing was found to be 50% in a consecutive series of patients undergoing total hip arthroplasty. The incidence was slightly higher in women (56% vs 41%). Patients with buttressing had increased neck-shaft angles and smaller femoral neck diameters than were seen in patients without buttressing. Histologic evaluation demonstrated that the buttress resulted from deposition bone by the periosteum on the femoral neck in the absence of any evidence of femoral neck fracture. Conclusion. It would appear that femoral neck buttressing occurs in response to increased joint reactive forces seen at the hip being transmitted through the femoral neck. The increased joint reactive force can be related to the increased neck shaft angle seen in patients with buttressing. |
| Databáze: | OpenAIRE |
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