Minimum 5-year results in 96 consecutive hips treated with a tapered titanium stem system

Area of Science:

• Orthopedic Surgery
• Biomaterials Science
• Radiology

Background:

• Total hip arthroplasty (THA) aims to restore function and alleviate pain in hip joints.
• Implant selection in THA can be influenced by patient demographics and femur morphology.
• Titanium alloys are widely used in orthopedic implants due to their biocompatibility and mechanical properties.

Purpose of the Study:

• To evaluate the clinical and radiographic outcomes of a single titanium stem in a consecutive series of total hip arthroplasty patients.
• To assess the versatility of a standardized titanium stem across diverse patient populations and femur characteristics.
• To determine implant ingrowth, subsidence, leg-length discrepancy, and remodeling over a minimum 5-year follow-up period.

Main Methods:

• A prospective study involving 96 consecutive, nonselected patients undergoing total hip arthroplasty with a single titanium stem design.
• Standardized surgical technique and implant selection were applied irrespective of patient age, bone type, or femur geometry.
• Independent radiographic assessment evaluated stem ingrowth, subsidence, leg-length discrepancy, and bone remodeling at a minimum 5-year follow-up.

Main Results:

• All 96 titanium stems achieved radiographic ingrowth.
• Average Harris Hip Score at final follow-up was 96 points, indicating excellent functional outcomes.
• No stem exhibited subsidence exceeding 3 mm, and leg-length discrepancies were within 5 mm for all patients.

Conclusions:

• The evaluated titanium stem is a versatile and effective option for total hip arthroplasty.
• This implant demonstrates reliable ingrowth and favorable radiographic outcomes in a broad spectrum of patients.
• The use of a single, standardized titanium stem simplifies surgical decision-making in total hip replacement.