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Works in progress #7. Clinical experience with the Accu-Path threaded acetabular cup. A preliminary report
S F Harwin1, R E Stern, R G Kulick
1Department of Orthopaedic Surgery, Albert Einstein College of Medicine, New York, New York.
Orthopaedic Review
|October 1, 1991
Summary
Clinical experience with the Accu-Path threaded titanium hemispheric cup shows encouraging results for hip arthroplasty. Careful patient selection, particularly regarding subchondral plate preservation, is crucial for optimal outcomes.
Area of Science:
- Orthopedic Surgery
- Biomaterials Engineering
- Medical Device Technology
Background:
- The Accu-Path threaded titanium hemispheric cup is a novel implant for hip arthroplasty.
- Evaluating clinical outcomes and surgical considerations is essential for device optimization.
Purpose of the Study:
- To present clinical experience with the Accu-Path threaded titanium hemispheric cup.
- To assess the efficacy and safety of this implant in primary and revision hip arthroplasty.
Main Methods:
- A retrospective study of 62 patients (50 primary, 12 revision) followed for an average of 28.1 months.
- Detailed description of surgical technique and roentgenographic analysis.
- Preoperative and postoperative Harris scores were used to evaluate functional outcomes.
Main Results:
- Significant improvement in Harris scores observed in both primary (28 to 93) and revision (24 to 84) cases.
- Complication rates included 3.2% dislocation, 3.2% loss of cup position, and 1.6% recurrent subluxation.
- Overall reoperation rate was 8%, with similar rates for primary (8%) and revision (8.3%) surgeries.
Conclusions:
- The Accu-Path cup demonstrates encouraging results in hip arthroplasty, with notable functional improvements.
- Preservation of the subchondral plate and achieving a rim fit are critical for successful implantation.
- Caution is advised in revision cases or patients with severe osteopenia due to potential complications.