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The purpose of this study is to determine if there is a difference in stress shielding and bone resorption of the proximal femur in two anatomical stem total hip designs.
Stress shielding related bone resorption in the proximal femur after total hip arthroplasty continues to be a problem. The purpose of this prospective, randomized study was to evaluate which of the two anatomical stem designs achieved a more physiological load transfer by assessing bone mineral changes in the proximal femur after stem implantation.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Stemless femoral component | Active Comparator | Stemless PROXIMA femoral component |
|
| Stemmed femoral component | Active Comparator | IPS, proximal anatomical fit stemmed femoral component |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Stemless femoral component | Device | Total hip femoral component anatomically designed for a proximal fit without a stem |
|
| Measure | Description | Time Frame |
|---|---|---|
| Bone mineral density of surrounding proximal femur according to Gruen zones | At least 2years after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Harris hip score | 2 years |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Young-Hoo Kim, MD | Korean Joint replacement Center | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ewha Womans University Mokdong Hospital | Seoul | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 17377765 | Background | Gulow J, Scholz R, Freiherr von Salis-Soglio G. [Short-stemmed endoprostheses in total hip arthroplasty]. Orthopade. 2007 Apr;36(4):353-9. doi: 10.1007/s00132-007-1071-x. German. | |
| 19562565 | Background | Albanese CV, Santori FS, Pavan L, Learmonth ID, Passariello R. Periprosthetic DXA after total hip arthroplasty with short vs. ultra-short custom-made femoral stems: 37 patients followed for 3 years. Acta Orthop. 2009 Jun;80(3):291-7. doi: 10.3109/17453670903074467. |
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| ID | Term |
|---|---|
| D015207 | Osteoarthritis, Hip |
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
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| IPS, Depuy cementless femoral stem | Device | Anatomical proximal fitted cementless stemmed femoral component |
|
|
| 18983669 | Background | Renkawitz T, Santori FS, Grifka J, Valverde C, Morlock MM, Learmonth ID. A new short uncemented, proximally fixed anatomic femoral implant with a prominent lateral flare: design rationals and study design of an international clinical trial. BMC Musculoskelet Disord. 2008 Nov 4;9:147. doi: 10.1186/1471-2474-9-147. |
| 12375241 | Background | Kim YH. Cementless total hip arthroplasty with a close proximal fit and short tapered distal stem (third-generation) prosthesis. J Arthroplasty. 2002 Oct;17(7):841-50. doi: 10.1054/arth.2002.33555. |
| D012216 |
| Rheumatic Diseases |