Decreased femoral periprosthetic bone mineral density: a comparative study using DXA in patients after cementless total hip arthroplasty with osteonecrosis of the femoral head versus primary osteoarthritis

• Published in: Archives of orthopaedic and trauma surgery 2016-05, Vol.136 (5), p.709-713
• Main Authors: Craiovan, Benjamin, Woerner, Michael, Winkler, Sebastian, Springorum, Hans-Robert, Grifka, Joachim, Renkawitz, Tobias, Keshmiri, Armin
• Format: Article
• Language: English
• Subjects: Absorptiometry, Photon; Aged; Arthritis; Arthroplasty, Replacement, Hip - adverse effects; Arthroplasty, Replacement, Hip - methods; Bone Density; Bone Diseases, Metabolic; Female; Femur - diagnostic imaging; Femur - physiopathology; Femur - surgery; Femur Head - surgery; Femur Head Necrosis - diagnostic imaging; Femur Head Necrosis - physiopathology; Femur Head Necrosis - surgery; Follow-Up Studies; Hip Arthroplasty; Hip Joint - surgery; Humans; Joint surgery; Male; Medicine; Medicine & Public Health; Middle Aged; Orthopedics; Osteoarthritis, Hip - physiopathology; Osteoarthritis, Hip - surgery; Postoperative Complications
• ISSN: 0936-8051; 1434-3916
• DOI: 10.1007/s00402-016-2423-y

Introduction Trabecular properties in osteonecrosis of the femoral head (ONFH) are altered for bone volume and structure in the femoral head and proximal femoral canal. We analysed the periprosthetic bone mineral density (BMD) as a correlate to bony ingrowth in patients with ONFH who received a cementless THA. Materials and methods We performed a matched-pair analysis of 100 patients with ONFH ( n  = 50) and primary osteoarthritis ( n  = 50) who received the same, unilateral cementless THA. We compared the periprosthetic BMD 5 years after surgery by means of dual energy X-ray absorptiometry (DXA) analysing the seven femoral regions of interest (ROIs) according to Gruen. Results Within the ONFH group, significantly lower BMD values were found in the ROI 1 and 7 ( p