Digital Photographic Measurements of the Proximal Femoral Anatomy
Keywords:
Digital photograph; femoral head-neck junction; femoral neck-shaft angle; femoroacetabular impingement syndrome; proximal femoral anatomyAbstract
Objective: This study evaluated the morphology of the proximal femur in the Thai population, especially the femoral head-neck relationship and the femoral neck-shaft relationship, using digital photographs.
Methods: The morphology of each proximal femur was evaluated via the standard anteroposterior and cephalocaudal views of digital photographs. The femoral head-neck junction morphology was evaluated for translation, rotation, and concavity. The femoral neck-shaft anatomy was measured with the neck-shaft angle and the neck version.
Results: Fifty-nine Thai femora with an average age of 45.4 years were evaluated. For the femoral head-neck translation, the average superior/inferior offset ratio was 1.01, and the average anterior/posterior offset ratio was 0.97. For the femoral head-neck rotation, the average anteroposterior and lateral physeal angles were 77.5° and 81.9°, respectively. Regarding the head-neck junction concavity, the average gamma, delta, alpha, and beta angles were 45.6°, 44.5°, 45.5°, and 36.2°, respectively. The average femoral neck-shaft angle was 129.5°, and the average femoral neck version was 5.7° of anteversion.
Conclusion: Thai femora had their heads located almost at the center of the femoral neck, and they were rotated in abduction and anteversion relative to the neck axis. The femoral head-neck junctions showed less concavity anteriorly and superiorly.
Downloads
Published
How to Cite
Issue
Section
License
Users are free to share, copy, and redistribute all articles published in the Siriraj Medical Journal (SMJ) in any medium or format as long as you follow the following terms:
- Attribution — You must give appropriate credit, provide a link to the material, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the publisher endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.