Miller TM, et al. - A case-control study was conducted to assess the anatomic and patient risk factors for postoperative periprosthetic hip fractures. Between 2008 and 2018, a sum of 16,254 primary total hip arthroplasty (THA) were conducted at our institution; of those, 48 were revised for periprosthetic fracture within 90 days of surgery. Researchers randomly selected a control group of 193 individuals undergoing THA for hip osteoarthritis (OA) from the source population. The results showed that the risk of early postoperative periprosthetic fracture following THA is enhanced with age, female gender, and growing distance from the greater trochanter to the top of the femoral head; and reduced in the setting of contralateral hip OA. The association between the trochanter-head distance and PPF shows that the pre-operative anatomy may affect PPF, especially about how that anatomy is reconstructed.