Craiovan, B. and Woerner, M. and Maderbacher, G. and Grifka, J. and Renkawitz, T. and Keshmiri, A. (2015) Difference in periprosthetic acetabular bone mineral density: Prior total hip arthroplasty: Osteonecrosis of the femoral head versus primary osteoarthritis. ORTHOPAEDICS & TRAUMATOLOGY-SURGERY & RESEARCH, 101 (7). pp. 797-801. ISSN 1877-0568,
Full text not available from this repository. (Request a copy)Abstract
Background: Total hip arthroplasty (THA) could be associated with a higher failure rate in patients after osteonecrosis of the femoral head (ONFH) compared to a patient population with primary osteoarthritis prior THA, especially regarding the acetabular component. One major reason could be the compromised acetabular bone quality. Therefore, we performed a retrospective case matched study to assess: 1) Is there a difference in periprosthetic bone mineral density between patients with an ONFH prior THA and controls? 2) Do patients with an ONFH prior THA have a lower bone mineral density compared to controls? 3) Which region in the periprosthetic bone stock is more likely to present differences in periprosthetic bone mineral density between both groups? Hypothesis: We hypothesized that there is a poorer bone mineral density (BMD) in the periacetabular bone stock in patients with an ONFH prior THA compared to controls receiving a THA due to primary osteoarthritis. Patients and methods: We compared the BMD of 50 patients with ONFH to 50 controls with primary osteoarthritis prior THA using the same implant in mean 5 years after surgery by means of dual energy Xray absorptiometry (DXA). We analysed 3 acetabular ROIs according to DeLee and Charnley in a modified measurement technique. Results: In ROI 3, representing acetabulum's upper aspect, statistically significant lower BMD values for the ONFH group could be found (P<0.05). No difference was found for the modified ROIs 1 and 2 (respectively medial and lower acetabulum). Discussion: The results indicate a poorer periacetabular BMD in patients with ONFH prior THA, which might be responsible for premature loosening of the acetabular cup in THA. Due to a lack of literature, further clinical investigations are required to confirm our results. (C) 2015 Published by Elsevier Masson SAS.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | X-RAY ABSORPTIOMETRY; PROXIMAL FEMUR; AVASCULAR NECROSIS; DXA; STEM; REPLACEMENT; CUP; COMPONENT; NECK; Total hip arthroplasty; Bone mineral density; Osteonecrosis of the femoral head; Dual energy X-ray absorptiometry; Acetabular cup; Loosening |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 May 2019 11:52 |
| Last Modified: | 07 May 2019 11:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/4529 |
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