Ossur Formfit Thumb Spica Splint | De Quervain's, CMC Joint & Thumb Stabilizer Brace

The Ossur Formfit Thumb Spica Splint is a clinically designed thumb spica brace that immobilizes and protects the thumb and wrist — ideal for patients managing De Quervain's tenosynovitis, CMC joint arthritis, Gamekeeper's Thumb, and post-cast recovery. As a low-profile thumb stabilizer, it delivers firm support without the bulk of a rigid cast.

Whether your clinician recommended a de quervain's splint, a wrist and thumb brace, or a CMC joint splint, the Formfit Thumb Spica is engineered to meet that clinical need with a breathable, contoured fit that patients actually wear.

Indications for Use

• De Quervain's tenosynovitis (De Quervain's splint)
• CMC joint arthritis (CMC joint splint)
• Gamekeeper's Thumb / Skier's Thumb
• Mild to moderate thumb and wrist sprains & strains
• Post-cast healing and soft tissue protection

Features & Benefits

• Breathable, lightweight material — comfortable for all-day wear
• Anatomical contour fit — conforms to the thumb and wrist for precise immobilization
• Contact closure straps — easy donning and doffing, adjustable compression
• Moldable customization stays — clinician-adjustable for patient-specific positioning
• Available in Left & Right, sizes XS–XL (5″–10″ wrist circumference)
• Reimbursement Code: L3807

Sizing Guide

Measure wrist circumference just below the wrist bone. When between sizes, size up.

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