EXOS Boxer's Fracture Brace (BFB) with BOA — Ulnar Gutter Cast Splint for 4th & 5th Metacarpal Fractures
A reformable, water-resistant fracture brace (cast splint alternative) designed to stabilize the 4th and/or 5th metacarpal and MCP joints while allowing a custom-molded fit. Ideal for boxer's fracture injuries when immobilization is prescribed.
Why clinicians choose EXOS for boxers' fractures
- Thermoformable / remoldable for a custom fit during swelling changes
- BOA Fit System for micro-adjustable compression and quick on/off
- Ulnar gutter design supports 4th/5th digits and helps position MCP joints for stability
- Water-resistant & easy to clean (hand wash / dry; hair dryer is commonly used for drying)
- Radiolucent material (often allows imaging without removal, per clinical protocol)
Indications
- Fractures of the 4th and/or 5th metacarpal (MC) or phalanges
- Injuries requiring ulnar gutter immobilization per provider direction
Key Features & Benefits
- Thermoform and custom fit to the patient's extremity for comfort and control
- Dorsal hook-and-loop secure tab helps stabilize the overlapping shell
- Web-space + 4th/5th digit straps can be positioned for improved stability
- Finger section can be trimmed (only as directed by the physician) to accommodate ROM goals
- BOA® dial provides fast, precision adjustment to help manage swelling/atrophy
Overview Video
Sizing & Fit (Important)
Measure first. Wrap a flexible tape loosely around the widest part of your hand (around the knuckles, excluding the thumb), then compare to the chart. If you're between sizes or want a roomier fit, size up. This brace is commonly returned for being too small.
| Size | Hand Circumference | Brace Length | Left Part # | Right Part # |
|---|---|---|---|---|
| XS | 7.25" – < 8" (18.4 – < 20.3 cm) | 10" (25.4 cm) | 325-31-1111 | 325-32-1111 |
| S | 8" – < 9" (20.3 – < 22.9 cm) | 11" (27.9 cm) | 325-41-1111 | 325-42-1111 |
| M | 9" – < 10" (22.9 – < 25.4 cm) | 12.25" (31.1 cm) | 325-51-1111 | 325-52-1111 |
| L | 10" – < 11" (25.4 – < 27.9 cm) | 13.75" (34.9 cm) | 325-61-1111 | 325-62-1111 |
| XL | 11"+ (27.9 cm+) | 14.5" (36.8 cm) | 325-71-1111 | 325-72-1111 |
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 people have successfully heated these items on their own, but we cannot cover this under warranty if it is not done by a trained medical professional.
Additional Videos & Resources
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.
Important purchase & fitting statement
By purchasing an EXOS brace or any accessories, you acknowledge that you are either a qualified orthopedic technician or currently under the supervision of an orthopedic medical provider who has prescribed an EXOS product directly to you. You must read and follow the manufacturer's directions. The end-user assumes responsibility for use or misuse. OrthoTape.com is a distributor and is not responsible for injury due to malfunction, misuse, inappropriate application, or other reasons.
Authorized Dealer | Authentic Product Quality Guaranteed
OrthoTape.com is an authorized dealer and guarantees authenticity and craftsmanship. We source directly from the manufacturer.
