Scorpio single radius total knee arthroplasty. A minimal five-year follow-up multicentric study

Area of Science:

• Orthopedic surgery
• Biomedical engineering
• Arthroplasty research

Background:

• Total knee arthroplasty (TKA) is a common procedure for knee osteoarthritis.
• Single radius designs aim to improve functional outcomes and implant longevity.
• Evaluating long-term results of novel TKA designs is crucial for clinical practice.

Purpose of the Study:

• To assess the five-year clinical and radiological outcomes of the Scorpio single radius total knee arthroplasty.
• To determine the survival rate and complication profile of this specific TKA design.

Main Methods:

• Retrospective analysis of a multicenter database.
• Inclusion of 747 patients (831 knees) undergoing primary Scorpio single radius TKA.
• Minimum five-year follow-up with clinical and radiological assessments.

Main Results:

• Mean follow-up of six years for 589 patients (602 knees).
• High patient satisfaction with mean clinical knee score of 92.2 and functional score of 76.9.
• Excellent or good outcomes in 530 knees; low incidence of patellar complications (4 revisions).
• Six-year survival rate of 95.2% (any revision) and 98.3% (mechanical failure).

Conclusions:

• The Scorpio single radius TKA demonstrates favorable medium-term clinical and radiological results.
• This single flexion-extension radius design is associated with a low rate of patellar complications.
• The study supports the efficacy of this TKA design in improving patient outcomes.