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Distal femoral bone mineral density decreases following patellofemoral arthroplasty: 1-year follow-up study of 14 patients |
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| Authors: | Hans-Peter W van Jonbergen Kenneth Koster Luc Labey Bernardo Innocenti Albert van Kampen |
| Affiliation: | (1) Department of Orthopedic Surgery, Deventer Hospital, Nico Bolkesteinlaan 75, 7416 SE Deventer, The Netherlands;(2) Department of Radiology, Deventer Hospital, Nico Bolkesteinlaan 75, 7416 SE Deventer, The Netherlands;(3) European Centre for Knee Research, Smith & Nephew, Technologielaan 11 Bis, 3001 Leuven, Belgium;(4) Department of Orthopaedic Surgery and Orthopaedic Research Laboratory, Radboud University Nijmegen Medical Center, PO Box 9101, 6500 HB Nijmegen, The Netherlands |
| Abstract: | BackgroundThe bone mineral density (BMD) of the distal femur decreases by 16-36% within one year after total knee arthroplasty (TKA) because of the femoral component's stress-shielding effect. The aim of this prospective study was to determine the quantitative change from the baseline BMD in the distal femur 1 year after patellofemoral arthroplasty using dual-energy X-ray absorptiometry (DXA). |
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