An interventional study of KeriFuse implant implantation in Osteoarthritis Finger and Osteoarthritis Thumb, sponsored by Clinique Saint François, Nice, France. Recruiting at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-10.
Sponsored by Clinique Saint François, Nice, France · Not applicable, Interventional, and Treatment
Arthrodesis of a distal interphalangeal joint of the finger (DIP) is mainly performed for a degenerated and painful joint. Various stabilization methods have been used to provide compression at the arthrodesis site such as pins, steel wires, compression screws, headless compression screws, bioresorbable implants and intramedullary staples.
Although with complications such as implant fractures or dorsal cortical erosion, intramedullary arthrodesis staples provide reliable pain relief and a consistent fusion rate while inevitably scarring the finger pulp or nail dystrophy.
The aim of this study is to evaluate the bone fusion time during an arthrodesis performed with the Kerifuse shape memory implant.
Arthrodesis of a distal interphalangeal joint of the finger (DIP) is mainly performed for a degenerated and painful joint. Various stabilization methods have been used to provide compression at the arthrodesis site such as pins, steel wires, compression screws, headless compression screws, bioresorbable implants and intramedullary staples.
Although with complications such as implant fractures or dorsal cortical erosion, intramedullary arthrodesis staples provide reliable pain relief and a consistent fusion rate while inevitably scarring the finger pulp or nail dystrophy.
The aim of this study is to evaluate the bone fusion time during an arthrodesis performed with the Kerifuse shape memory implant.
Main objective is to evaluate the bone fusion time in arthrodesis performed with the Kerifuse shape memory implant.
Secondary objectives are :
Clinique Saint François, Nice, France is the lead sponsor of 2 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Patients older than 18 years-old, with a surgical indication of interphalangeal arthrodesis of finger
Procedure: KeriFuse implant implantation
The surgery is an arthrodesis of finger or thumb (for patients with finger osteoarthritis) and involves implanting the KeriFuse implant.
Fusion time of bone in distal interphalangeal arthrodesis of the fingers
Fusion time of bone (in weeks) will be measure by X-ray,
Time frame: day 5 - week 4 - week 6 - week 8 - week 10 - week 12 - year 2 after surgery
Mid-term efficacy of arthrodesis in pain decrease
Evaluation of pain with analogic visual scale
Time frame: day 5 - week 4 - week 6 - week 8 - week 10 - week 12 - year 2 after surgery
Evaluation of arthrosis degree
Evaluation fo arthrosis degree according to Kellgren-Lawrence scale
Time frame: day 5 - week 4 - week 6 - week 8 - week 10 - week 12 - year 2 after surgery
Patient satisfaction
Evaluation of patient satisfaction according to Likert scale
Time frame: D5 - W4 - W6 - W8 - W10 - W12 - Y2 after surgery
Evaluation of global hand function
Evaluation by the patient using functional score Quick DASH
Time frame: day 5 - week 4 - week 6 - week 8 - week 10 - week 12 - year 2 after surgery
Plan to share: No
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Clinique Saint François, Nice, France