Comparison of Three Total Ankle Replacement Systems Done at a Single Facility

Area of Science:

• Orthopedic surgery
• Biomedical engineering
• Clinical outcomes research

Background:

• Ankle replacement surgery is a common treatment for end-stage ankle arthritis.
• Existing literature primarily consists of single-institution, single-implant studies.
• Prospective randomized comparative studies on total ankle arthroplasty (TAA) systems are lacking.

Purpose of the Study:

• To compare the outcomes of three different total ankle arthroplasty systems: INBONE, STAR, and Salto Talaris.
• To provide an objective, independent perspective on the comparative results of these TAA systems.
• To evaluate short-term outcomes of TAA systems performed at a single institution.

Main Methods:

• Comparative analysis of three TAA systems (INBONE, STAR, Salto Talaris).
• Data collected from implants performed at a single institution between 2007 and 2011.
• Independent evaluation of data by authors not affiliated with the study institution.
• Therapeutic, Level IV: Case series.

Main Results:

• No statistically significant differences in outcome scores or functional tests were observed between the INBONE, STAR, and Salto Talaris systems at a minimum 2-year follow-up.
• All three TAA systems demonstrated statistically significant improvements in all measured parameters compared to baseline.
• The study provides valuable short-term comparative data on TAA system performance.

Conclusions:

• This study represents the first comparison of three distinct total ankle replacement systems from a single institution over the same timeframe.
• While not a randomized trial, the findings offer a valuable perspective on the short-term results of these TAA systems.
• The comparative data suggest similar short-term functional outcomes across the evaluated TAA systems.