Anthropometric measurements to design total knee prostheses for the Indian population

An anthropometric computed tomography scan study was undertaken to design femoral components in 86 knees (47 osteoarthritic Indians—21 men, 26 women) who matched standards suggested by the Indian Council of Medical Research 1990. Patients were classified into 3 random groups based on anteroposterior diameter (<55 mm, 55–59 mm, >59 mm). Most Indian men (86.8%) could have the femoral component satisfactorily replaced by available designs. A statistically significant number of women (60.4%, P < .001) had femoral anteroposterior diameters smaller than the smallest available (55 mm) femoral component. Splaying in mediolateral dimension (> 10 mm) in a given anteroposterior size was noted in all 3 groups. This pilot study representative of the Indian population can be used to manufacture prosthetic inventories suitable for most of the Asian-Pacific population having smaller anthropometric measurements than Western populations.