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Updated: May 13, 2026
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
Eleven-year results of the anatomic coated CFP stem in primary total hip arthroplasty
Daniel O Kendoff1, Mustafa Citak, Claus C Egidy
1Department of Orthopaedic Surgery, Helios ENDO-Klinik, Hamburg, Germany.
Insights
This study on the CFP prosthesis in total hip arthroplasty found it safe for young patients, showing excellent results after 11 years with a low revision rate. Keywords: hip replacement, short stem prosthesis.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
Background:
- Limited intermediate-term data exists for short-stem hip prostheses.
- The CFP prosthesis is an anatomic neck-preserving stem designed for total hip arthroplasty.
Purpose of the Study:
- To report the longest available intermediate-term follow-up results for the CFP prosthesis.
- To evaluate the safety and efficacy of the CFP implant in primary total hip arthroplasty.
Main Methods:
- Prospective study of 149 patients undergoing primary total hip arthroplasty with the CFP prosthesis (1999-2000).
- Mean follow-up of 11.2 years with 117 patients available for assessment.
- Evaluation of clinical outcomes using the Harris Hip Score (HHS) and revision rates.
Main Results:
- The mean HHS improved significantly from 53 to 93.
- Revision surgery was required in 9.4% of patients (11/117).
- Implant-associated complications occurred in 4.3% (5/117), with aseptic loosening in 3.4% (4/117).
Conclusions:
- The CFP short-stem prosthesis demonstrates safety and provides excellent clinical outcomes at a mean of 11.2 years post-total hip arthroplasty.
- The implant is a viable option for young patients undergoing primary hip replacement surgery.
- Low rates of revision and implant-associated complications support the long-term utility of this prosthesis.
Abstract:
There is a paucity of intermediate term results relating to short stem prostheses. The current study represents the longest follow-up results of the CFP prosthesis to the authors' best knowledge. Between January 1999 and December 2000, all total hip arthroplasty patients (n = 149), treated with this anatomic neck preserving stem in the authors' institution were enrolled in this study. After a mean follow-up time period of 11.2 years 117 patients were available for the follow-up examination. The mean HHS increased from 53 to 93. Overall, revision surgery was required in 11 patients (9.4%), with implant-associated complications noted in only five cases (4.3%). Aseptic loosening leading to implant removal was noted in four patients (3.4%). The current study's data suggest that the CFP implant, used in young patients undergoing primary total hip arthroplasty, is safe and provides excellent results after 11 years.