Scaling Marker Position Determines the Accuracy of Digital Templating for Total Hip Arthroplasty

ConclusionsDigital templating relies on scaling marker position to accurately estimate implant size. Based on the findings in this study, scaling markers for hip imaging should be placed laterally, mid-thigh in the anterior-posterior direction for patients with a BMI between 25 and 40 kg/m2. If abnormal hip anatomy or extremes of BMI are discovered, then scaling sphere positioning should be optimized on a case-by-case basis. Digital templating systems for total hip arthroplasty must use precisely placed scaling markers at the level of the hip joint to allow for accurate implant size estimation.

http://link.springer.com/10.1007/s11420-017-9578-0

Source: HSS Journal - September 12, 2017 Category: Orthopaedics Source Type: research