Exos Thumb Spica Fracture Brace with BOA waterproof Cast Splint alternative on a white background
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Exos Thumb Spica Fracture Brace with BOA waterproof Cast Splint alternative on a white background

Exos Thumb Spica Fracture Brace with BOA | Cast Splint - Djo Global

Price:
$126.99

Description

EXOS Thumb Spica Fracture Brace with BOA® (Thermoformable Cast Splint)

A reformable, water-resistant thumb spica fracture brace that delivers cast-like stabilization with the convenience of adjustability. Designed to stabilize the thumb (adduction), 1st MCP & 1st CMC joints, while also supporting the wrist joint complex.

Why clinicians and patients choose EXOS
  • Thermoformable (reformable) for a custom fit and better immobilization
  • BOA® micro-adjustable dial helps accommodate swelling/atrophy and fine-tunes compression
  • Water-resistant materials for day-to-day life (dry after wet exposure)
  • Lightweight & adjustable—one brace throughout treatment (reduces waste)
  • Latex-free

Which Exos Thumb Spica Do I Need?

You may have noticed on our site that there are TWO Exos Thumb Spica Braces. If you have a prescription/diagnosis, match what your provider recommended.

Exos Long Thumb Spica II™ (BOA®)

Best for: thumb injury plus needing more wrist/forearm control.

Exos Long Thumb Spica II with BOA
Primary differences/uses:
  • More forearm length = helps limit wrist motion more.
  • Often chosen for scaphoid (navicular) concern or when wrist stability matters.
  • Helpful for thumb base (CMC) pain when wrist movement aggravates symptoms.
  • Good when your provider wants strong immobilization + extra wrist control.

Exos Thumb Spica™ Fracture Brace

Best for: fracture-style support, especially with swelling/dressings.

Exos Thumb Spica Fracture Brace
Primary differences/uses:
  • Designed for fracture-style immobilization of wrist + thumb.
  • More accommodating for swelling and bulky dressings early on.
  • Commonly used when there's a distal radius/ulna wrist-area injury.
  • Often selected for acute injury and some post-op situations.

Size Chart & Fit Tips (Most Returns Are From Sizing)

How to measure: Wrap a soft tape loosely around your hand at the measurement point shown in the diagram. If you measure between sizes or prefer a roomier fit (or expect swelling), size up. This brace can be molded for a better fit.

Hand measurement diagram showing where to measure circumference for EXOS thumb spica brace sizing
Size Hand Circ. (in) Hand Circ. (cm) Brace Length Left Part # Right Part #
XS 7.25" – < 8" 18.5 – 20 cm 9" 315-31-1111 315-32-1111
S 8" – < 9" 20 – 23 cm 10" 315-41-1111 315-42-1111
M 9" – < 10" 23 – 25.5 cm 11.25" 315-51-1111 315-52-1111
L 10" – < 11" 25.5 – 28 cm 12.25" 315-61-1111 315-62-1111
XL 11"+ > 28 cm 13" 315-71-1111 315-72-1111
Fit note: A "perfect shoe-like fit" is not the goal—this is a medical brace designed to accommodate swelling and be molded. If you're on the low end of the range, you may have extra room until molded; if you're on the high end, it should feel more "true to size."

Heating & Application (Important)

Important: This brace must be heated to properly mold for best fit. Watch the videos below before fitting.

Requirement Manufacturer Specification
Ideal Temperature 200°F (93°C)
Maximum Safe Temperature 212°F (100°C)
Heating Time Approximately 3–5 minutes
Working Time 3–8 minutes before it hardens
Heating Method Convection oven or hair dryer (for small adjustments)
Warning Never use a microwave or high-heat industrial heat guns.

Important: EXOS braces are intended to be fitted and remolded by trained medical professionals. Heating/molding performed outside medical guidance may affect fit, safety, and warranty coverage. Many have successfully heated these items on their own using a home oven and wrapping the brace in a damp towel, but we cannot cover this under warranty if it is not done by a trained medical professional.

Videos

Instructions

EXOS Thumb Spica Fracture Brace heating and molding instructions diagram

Authorized Dealer | Authentic Product Quality Guaranteed

OrthoTape.com is an authorized dealer. We source directly from the manufacturer and back our products.

Important purchase & use statement: By purchasing an EXOS brace or accessories, you acknowledge you are either a qualified orthopedic technician or currently under the supervision of a medical provider who prescribed the product. Follow the manufacturer's directions. The end-user assumes responsibility for use/misuse. OrthoTape.com is a distributor and is not responsible for injury due to misuse, inappropriate application, or other causes.

Looking for more EXOS braces?

Browse our full collection of EXOS thermoformable braces — including wrist, thumb, and fracture models.

Shop All EXOS Braces →

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  • 5 stars: 3 (75%)
  • 4 stars: 1 (25%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
T
Terry Bettinger
Very stiff

Very stiff, multiple heating sessions to get the molding comfortable

Hello there! Thank you for taking the time to leave a review for the Exos Thumb Spica Fracture Brace. We understand that the stiffness of the brace can be uncomfortable at first. We recommend using the Exos oven for heating, but if you don't have one, a hair dryer can also work well for DIY adjustments. We hope this helps and that you are finding some relief with the brace. Have a great day!

N
Norberto Levin
What an excellent service!

I returned this item because the doctor changed his mind and now recommends surgery. But i need to congratulate Orthotape for fantastic service, both in delivering on time and in managing the return process. Congratulations!!!

A
Anonymous
Top

Top notch

B
Brian Brian
Exos brace

Very easy to order and works great