Article ; Online: Fully hydroxyapatite-coated distal locking cementless femoral modular implant for revision total hip arthroplasty: A retrospective study of 94 Renaissance™ stems at a minimum 10 years' follow-up.
Orthopaedics & traumatology, surgery & research : OTSR
2022 Volume 108, Issue 6, Page(s) 103233
Abstract: Introduction: Modular locking revision total hip arthroplasty femoral implants have been little assessed over the long term. We therefore conducted a retrospective assessment of the Renaissance™ fully hydroxyapatite-coated distal locking cementless ... ...
| Abstract | Introduction: Modular locking revision total hip arthroplasty femoral implants have been little assessed over the long term. We therefore conducted a retrospective assessment of the Renaissance™ fully hydroxyapatite-coated distal locking cementless femoral modular revision implant at a minimum 10 years' follow-up, analyzing: 1) survivorship, 2) complications, 3) radiologic and functional results, and 4) prevalence of thigh pain. Hypothesis: This implant shows more than 90% 10-year survival. Material and method: Between December 2002 and December 2008, 213 implant exchanges were performed in 206 patients, including 97 Renaissance™ stems in 93 patients. Three patients were excluded for missing data. Survival was analyzed for 94 stems in 90 patients at a mean 11.2±3 years' follow-up; radiographic and clinical assessment was performed for 48 stems in 45 patients. The survival criterion was implant fracture and/or femoral stem removal. Results: Survival was 93.5% at 10 years (95% CI: 86-97) and 91.3% at 15 years (95% CI: 82.9-96). Eight stems (8.5%) were exchanged or removed by last follow-up: 5 for infection (5.3%) and 3 for implant breakage (3.2%). The complications rate was 18.1% (N=17, including the 8 stem revisions): 3 stem exchanges for breakage (3.2%), 9 stem infections (9.6%), 3 dislocations (3.2%), and 2 traumatic greater trochanter fractures (2.1%). For the 45 patients with long-term clinical assessment, the mean Postel Merle d'Aubigné and Harris Hip scores were respectively 15±3 and 80 ±19 at last follow-up. Metaphysis reconstruction was satisfactory in 36/48 cases (75.0%). Seven of the 48 stems (14.6%) assessed at longest follow-up, in 45 patients, were causing thigh pain, unrelated to stress-shielding, distal locking screws or metaphyseal filling index. Discussion: The Renaissance™ fully hydroxyapatite-coated modular locking stem with curved nail showed 90% 10-year survival, with satisfactory functional results and little thigh pain. Level of evidence: IV; case study without control group. |
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| MeSH term(s) | Arthroplasty, Replacement, Hip/methods ; Durapatite ; Femur/surgery ; Follow-Up Studies ; Hip Prosthesis ; Humans ; Pain/surgery ; Prosthesis Design ; Prosthesis Failure ; Reoperation ; Retrospective Studies ; Treatment Outcome |
| Chemical Substances | Durapatite (91D9GV0Z28) |
| Language | English |
| Publishing date | 2022-02-03 |
| Publishing country | France |
| Document type | Journal Article |
| ISSN | 1877-0568 |
| ISSN (online) | 1877-0568 |
| DOI | 10.1016/j.otsr.2022.103233 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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