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The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report
Published on: August 4, 2022
Long term results with the interlocking uncemented long stem in revision hip arthroplasty: a mean 15-year follow-up
Tomomi Kamada1, Hiroshi Imai1, Naohiko Mashima1
1Department of Bone and Joint Surgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan.
Insights
The HUCKESTEP HIP stem offers a viable solution for severe proximal bone loss in revision hip surgery, demonstrating a 90.4% survival rate at 15 years with improved patient function.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Reconstructive Surgery
Background:
- Severe proximal bone loss presents challenges in revision hip arthroplasty.
- Achieving stable stem fixation is critical for long-term implant survival.
Purpose of the Study:
- To evaluate the 15-year clinical and radiographic outcomes of the distally-locked HUCKESTEP HIP stem.
- To assess the efficacy of this interlocking stem in revision hip surgery with extensive bone defects.
Main Methods:
- A retrospective review of 21 revision hip arthroplasties using the HUCKESTEP HIP stem.
- Mean follow-up of 15 years, assessing patient-reported outcomes and radiographic evidence.
- Survival analysis with stem removal as the endpoint.
Main Results:
- Significant improvement in the Japanese Orthopaedic Association (JOA) hip score from 54 to 75 points.
- A cumulative survival rate of 90.4% at 15 years, with stem removal in 2 cases (infection, screw fracture/subsidence).
- Satisfactory clinical and radiographic results were observed despite the small sample size.
Conclusions:
- The distally-locked HUCKESTEP HIP stem provides satisfactory long-term results for revision hip surgery with severe proximal bone loss.
- This interlocking stem design is a valuable option for addressing extensive proximal bone defects.
- Further studies with larger cohorts are warranted to confirm these findings.
Abstract:
Stem fixation is difficult to achieve in severe proximal bone loss in revision hip surgery. In this study, we sought to present the results of distally-locked stem with screws (HUCKESTEP HIP stem) in 21 revision hips with mean follow-up period of 15 years. The preoperative mean Japanese Orthopaedic Association hip score had improved from 54 to 75 points. Further revisions were required for 2 stems, in one because of infection and the other because of screws fracture and subsidence. With removal of the stem for any reason as an end-point, the cumulative survival at 15 years was 90.4%. While this study had small number, the use of this interlocking stem for revision hips with extensive proximal bone defects provided satisfactory 15-year clinical and radiographic results.
