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Updated: Aug 9, 2026
07:43
In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
Common misconceptions of normal hip joint relations on pelvic radiographs
Shibu P Krishnan1, R W J Carrington, Syed Mohiyaddin
1Royal Free Hospital, London.
The Journal of Arthroplasty
|April 22, 2006
Summary
This study quantifies normal hip variations using pelvic radiographs. Hip offset and center location show predictable bilateral relationships, aiding in surgical planning and implant selection.
Area of Science:
- Orthopedic surgery
- Radiology
- Biomechanical analysis
Background:
- Accurate measurement of hip anatomy is crucial for orthopedic procedures.
- Understanding bilateral variations in hip morphology is essential for successful surgical outcomes.
Purpose of the Study:
- To define normal bilateral variations in hip offset and hip center location on pelvic radiographs.
- To establish relationships between femoral head center, greater trochanter, and medullary canal diameter.
Main Methods:
- Analysis of 100 normal pelvic radiographs.
- Measurement of hip offset, hip center location, greater trochanter height, and medullary canal diameter.
Main Results:
- Hip offset predicted contralateral hip offset within 4.62 mm (95% confidence).
- Contralateral hip center locations differed by an average of 6.3 mm.
- The greater trochanter tip averaged 8 mm higher than the femoral head center.
- A general trend of increasing offset with medullary canal diameter was observed, but with discrepancies.
Conclusions:
- Bilateral hip anatomy exhibits predictable variations, particularly in offset.
- These findings provide valuable reference data for orthopedic surgeons.
- Radiographic measurements of hip morphology can inform surgical planning and implant design.
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