Arthritis of the thumb carpometacarpal (CMC) joint is commonly treated by removing the trapezium (trapeziectomy), often with a suspension or ligament reconstruction to support the thumb metacarpal. Some patients have a fusion instead.
- BUTTONFIX-W (one button): holds the thumb and index metacarpals in alignment after trapezial resection, for CMC arthritis or instability, through a 1.5 mm hole.
- FIBERKNOT: all-suture anchors (1.5 and 1.8 mm) for soft-tissue procedures such as CMC arthroplasty.
Also known as: Trapeziectomy, Suture button suspensionplasty, Thumb CMC arthroplasty, Thumb CMC fusion, Thumb CMC instability
Products for thumb base (CMC) arthritis surgery

BUTTONFIX-W One Fixation Button
Titanium oblong button preloaded with a USP size 2 fibre loop to hold thumb and index metacarpal alignment after trapeziectomy for CMC arthritis.
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FIBERKNOT® All-Suture Anchors
All-suture UHMWPE anchors in 1.5, 1.8 and 2.9 mm for soft-tissue fixation in the shoulder, hip, elbow, hand, wrist, foot and ankle.
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Which products does Lavender Medical supply for thumb base (CMC) arthritis surgery?
BUTTONFIX-W One Fixation Button and FIBERKNOT® All-Suture Anchors. Each has its own page with the surgical technique and brochure where available. Call us or use the enquiry button for product information, a demonstration or a kit for a case.
Related procedures
Wrist and carpal fusionMCP joint fusionHand and wrist ligament repair
