Craiovan, Benjamin and Woerner, Michael and Winkler, Sebastian and Springorum, Hans-Robert and Grifka, Joachim and Renkawitz, Tobias and Keshmiri, Armin (2016) 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. ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY, 136 (5). pp. 709-713. ISSN 0936-8051, 1434-3916
Full text not available from this repository. (Request a copy)Abstract
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 < 0.05). No statistically significant difference was found for ROIs 2-6. Conclusions An altered periprosthetic bone stock in the proximal femur in patients with prior ONFH might be a possible risk factor for premature loosening of the femoral stem in THA. Surgeons need to consider coating and fixation philosophy of cementless implants when choosing the right stem for patients with ONFH.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | X-RAY ABSORPTIOMETRY; PROXIMAL FEMUR; ACETABULAR CUP; STEM; REPLACEMENT; PROSTHESIS; DIFFERENCE; FAILURE; MODES; NECK; Total hip arthroplasty; Bone mineral density; Osteonecrosis of the femoral head; Dual energy X-ray absorptiometry |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 Mar 2019 12:26 |
| Last Modified: | 25 Mar 2019 12:26 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3016 |
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