MINIMA Short Stem Versus Standard Profemur (TL) Stem in Primary Total Hip Replacement: A Comparative Study

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Arthroplasty Research

Background:

• Comparing a novel squared section, tapered MINIMA® short stem against the cementless Profemur® TL standard femoral stem.
• Evaluating functional outcomes, radiologic results, and peri-operative data in primary total hip arthroplasty (THA).

Purpose of the Study:

• To assess the efficacy and safety of the MINIMA® short stem in primary THA.
• To compare the MINIMA® short stem with the established Profemur® TL standard stem.

Main Methods:

• A comparative study of 46 patients undergoing primary THA, with 23 patients receiving the MINIMA® stem and 23 receiving the Profemur® TL stem.
• Utilized Visual Analog Scale/Numerical Rating Scale (VAS/NRS), Harris Hip Score (HHS), and other functional/clinical assessments.
• Collected demographic, peri-operative, radiographic, and complication data.

Main Results:

• Peri-operative data were comparable between the MINIMA® and Profemur® TL groups.
• The MINIMA® group showed higher femoral offset and subsidence, within acceptable limits.
• Most functional scores did not show significant differences between the two femoral stems.

Conclusions:

• The MINIMA® short stem is effective, showing comparable or better short-term outcomes than the Profemur® TL standard stem.
• Further well-designed, long-term research is necessary to fully establish the effectiveness of the MINIMA® short stem.