4.0 of 62 Ratings
A 34-year-old female presents with chronic insidiously progressive left hip pain. The physical exam is significant for 15 degrees of internal rotation with the hip in 90 degrees of flexion and a positive flexion-internal rotation impingement sign. Radiographs show a Tonnis angle of 15 degrees and a lateral center-edge angle of 15 degrees. MRI is significant for an anterosuperior labral tear. Which of the following is true of patients who undergo hip arthroscopy in the presence of this underlying pathology as compared to those without?
Decelerated progression of arthritis
Decreased femoral head subluxation
Decreased risk of reoperation
Greater failure rate
Greater functional improvement
Select Answer to see Preferred Response
A 65-year-old male presents to your office for evaluation of chronic debilitating left hip pain over the last 5 years. He requires a shoe lift to ambulate. Radiographs are shown in figure A. The patient undergoes surgical treatment with a left THA, and his intra-op radiographs reveal equal leg lengths. The sciatic nerve was well visualized and protected during the procedure. On the first post-operative day, the patient is noted to have weakness in ankle dorsiflexion with paresthesias over the dorsum of the foot. What intra-operative technique could have prevented this complication?
Hip extension and knee flexion during exposure
Subtrochanteric femoral shortening osteotomy
Smith-peterson anterior approach
Increasing femoral offset
Upsizing the femoral component
Figure 54 shows the preoperative radiograph of a 45-year-old woman who is considering total hip arthroplasty with her orthopaedic surgeon. What femoral characteristic is a typical concern in this patient?
Figure 21 shows the radiograph of a 32-year-old patient with right hip pain that has failed to respond to nonsurgical management. What is the most appropriate surgical treatment at this time?
Femoral derotational osteotomy
Total hip arthroplasty
Surgical dislocation of the hip
A 42-year-old man undergoes right total hip arthroplasty for hip dysplasia. Postoperatively, he has a significant limb-length increase with a foot drop. A preoperative radiograph is shown in Figure 19. Which of the following should have been considered preoperatively to avoid this complication?
Medialization of the acetabular component
Use of a modular femoral implant
Anterolateral approach to the hip
Based on the radiograph shown in Figure 4, the innervation of what muscle is most at risk with total hip arthroplasty?
Extensor hallucis longus