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Published on: September 7, 2022
Long-Term Effectiveness of Total Hip Replacement with the Collum Femoris Preserving Prosthesis
Rui-Jin You1, Wen-Zhong Zheng2, Kun Chen2
1Department of Orthopedics, People's Liberation Army No. 180 Hospital, 180 Garden Street, Fengze District, Quanzhou, 362000, Fujian, China. you118@tom.com.
Insights
Long-term follow-up of collum femoris preserving hip arthroplasty shows good clinical outcomes and effectiveness. This hip prosthesis is a viable option for younger patients requiring revision surgery.
Area of Science:
- Orthopedic Surgery
- Arthroplasty Research
- Biomedical Engineering
Background:
- Hip arthroplasty is a common procedure for hip joint issues.
- Collum femoris preserving prosthesis aims to maintain femoral neck integrity.
- Long-term outcomes of this specific prosthesis type require further evaluation.
Purpose of the Study:
- To evaluate the long-term clinical outcomes (5-12 years) of hip arthroplasty using a collum femoris preserving prosthesis.
- To assess potential complications associated with this surgical technique.
- To determine the effectiveness of this prosthesis in patients needing revision surgery.
Main Methods:
- Retrospective follow-up of 46 patients who underwent the procedure between 2000 and 2012.
- Average follow-up duration of 7.6 years.
- Assessment included radiographs, Harris hip score, limb length, hip function, and complication analysis.
Main Results:
- Significant improvement in Harris hip score from 41.2 preoperatively to 82.3 postoperatively.
- 38 out of 46 patients achieved a Harris score >80.
- Perioperative complications included 5 femoral shaft fractures and 1 dislocation; no infections or thromboembolic events were observed.
Conclusions:
- Total hip arthroplasty with a collum femoris preserving prosthesis demonstrates satisfactory long-term effectiveness.
- This procedure is a favorable option for younger patients undergoing hip prosthesis revision.
- The prosthesis shows good implant positioning and stability in the majority of patients.
Abstract:
The objective of this study was to follow-up long term (5-12 years) patients with total hip arthroplasty with the collum femoris preserving prosthesis to evaluate clinical outcome and potential complications. Forty-six of 152 patients who underwent this procedure between September 2000 and September 2012 were followed up. The average follow-up time was 7.6 years, and assessed were radiographs, Harris score, limb length, hip function, and complications. Six patients had perioperative complications including five cases of femoral shaft fracture and one case of dislocation 1 week after the operation. No infections of the surgical site, no deep venous thrombosis or pulmonary embolism were observed. The last recorded Harris hip score improved from a preoperative average of 41.2 (range 17-60) to an average of 82.3 (74-96), with the score >80 in 38 patients, 70-80 in six patients, and <70 in two patients. Radiolucent lines were found on radiographs in two patients with acetabular prosthesis and one patient with femoral prosthesis. The remainder of patients had satisfactory positions of acetabular and femoral stem prostheses with no loosening or subsidence, and a good condition of femoral neck. Total hip arthroplasty with the collum femoris preserving prosthesis is a good option for younger patients who need prosthesis revision. This arthroplasty achieves satisfactory long-term effectiveness.
