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Rearthroplasty after conventional total hip prosthesis and double-cup prosthesis. A comparative study
Abstract:
Revision of 19 Müller total hip prostheses and 9 ICLH double-cup prostheses is compared. In the Müller group the mean operation time was 186 min, the amount of blood transfused 3526 ml, and the hospital stay 34.9 days. The corresponding figures for the ICLH group were 94 min, 1389 ml, and 25.7 days. Revision of the conventional hip prostheses involved technical difficulties and complications such as femoral fractures and postoperative dislocations, which were not seen in the ICLH group, in which the revision was as easy to perform as the primary operation. The clinical result 6 months after revision was significantly better in the ICLH group. Thus, the double-cup prosthesis provides another possibility for revision. However, a relatively high incidence of early loosening indicates that it should not be used in older patients in whom one would expect a follow-up shorter than the lifetime of a conventional hip prosthesis.
Insights
Revision surgery for hip prostheses showed the ICLH double-cup prosthesis led to shorter operation times, less blood transfusion, and faster recovery compared to Müller prostheses. The ICLH group also had better clinical outcomes, though early loosening is a concern in older patients.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Total hip replacement (THR) is a common procedure, but revision surgeries are complex.
- Conventional hip prostheses can present challenges during revision procedures.
Purpose of the Study:
- To compare the outcomes of revising Müller total hip prostheses versus ICLH double-cup prostheses.
- To evaluate the technical feasibility, complications, and clinical results of these revision procedures.
Main Methods:
- Retrospective comparison of 19 Müller prosthesis revisions and 9 ICLH double-cup prosthesis revisions.
- Data collected included operative time, blood transfusion volume, hospital stay, complications, and clinical outcomes at 6 months post-revision.
Main Results:
- ICLH double-cup revisions had significantly shorter operation times (94 min vs. 186 min), reduced blood transfusion (1389 ml vs. 3526 ml), and shorter hospital stays (25.7 days vs. 34.9 days) compared to Müller revisions.
- Technical difficulties and complications like femoral fractures and dislocations were observed in Müller revisions but not in ICLH revisions.
- Clinical results at 6 months post-revision were significantly better for the ICLH group.
Conclusions:
- The ICLH double-cup prosthesis offers a viable and less complex alternative for hip prosthesis revision compared to conventional Müller prostheses.
- While ICLH prostheses show promise, a high incidence of early loosening necessitates caution in older patients with shorter life expectancy.
- Further research may be needed to optimize ICLH prosthesis longevity for specific patient populations.