Effect of the surgical approach on the incidence of nerve injury in patients with Crowe IV hip dysplasia undergoing total hip arthroplasty: a comparison between the direct anterior and the posterior approaches

Patients undergoing THA due to osteoarthritis secondary to Crowe IV DDH can be operated on with a DAA. However, there is an increased incidence of femoral nerve injury when compared to the posterior approach. To prevent symptomatic nerve injury, the DAA should not be used in obese patients and might require more extensive intraoperative soft-tissue release.