Journal
JOURNAL OF ARTHROPLASTY
Volume 21, Issue 3, Pages 409-412Publisher
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1016/j.arth.2005.10.021
Keywords
hip joint center; medullary canal diameter; offset; total hip arthroplasty; trochanteric height
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This study defines normal bilateral variations in offset and hip center location oil pelvic radiographs. The relationship of the femoral head center to the tip of the greater trochanter and that of offset to medullary canal diameter are also defined. Measurements of the offset, hip center location, height of the tip of the greater trochanter from the femoral head center, and medullary canal diameter were carried out Oil 100 normal pelvic radiographs. The offset of one hip was found to predict that of the contralateral hip to within 4.62 mm with 95% confidence. Their hip center locations differed by 6.3 mm. The tip of the greater trochanter was, oil average, 8 trim higher than the femoral head center. Although offset generally increased with an increase in medullary canal diameter, frequent discrepancies occurred in their relationship.
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