Static Knee Alignment Measurements among Caucasians and African Americans: The Johnston County Osteoarthritis Project

Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7280, USA.
The Journal of Rheumatology (Impact Factor: 3.19). 08/2009; 36(9):1987-90. DOI: 10.3899/jrheum.081294
Source: PubMed


To determine if knee alignment measures differ between African Americans and Caucasians without radiographic knee osteoarthritis (rOA).
A single knee was randomly selected from 175 participants in the Johnston County Osteoarthritis Project without rOA in either knee. Anatomic axis, condylar, tibial plateau, and condylar plateau angles were measured by 1 radiologist; means were compared and adjusted for age and body mass index (BMI).
There were no significant differences in knee alignment measurements between Caucasians and African Americans among men or women.
Observed differences in knee rOA occurrence between African Americans and Caucasians are not explained by differences in static knee alignment.

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Available from: Julius Atashili, May 24, 2014
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    • "They also found differences in the ratio between AAF/CF (African American Female/Caucasian Female) and AAM/CM (African American Male/ Caucasian Male), with the mean ratio being larger in CMs compared to AAMs and CFs com‐ pared to AAFs. [11] [12] [13] This finding conflicts with Gillespie et al. who reported a larger ML/AP ratio in African Americans than in Caucasians; however, their African American population was from the early 20 th century, which could account for differing anatomic features from the current pop‐ ulation. [3] [13] The radii of curvature analysis on both the medial and lateral condyles re‐ vealed AMs and AFs (American Female) tend to have more curved condyles (ie, smaller radius of curvature) than Caucasians, implying a larger ROM. "

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