Is a Donjoy (Dynamic Orthotics and Neuroscience Joint Orthotics) brace sufficient for treating an intraarticular distal radius fracture?

No, a DonJoy brace is not sufficient for intraarticular distal radius fractures

Intraarticular distal radius fractures with displacement require surgical fixation, not bracing alone. A DonJoy brace (or any removable splint/brace) is inadequate for managing these fractures because they involve the joint surface and require anatomic restoration to prevent post-traumatic arthritis and functional disability.

Treatment Algorithm for Intraarticular Distal Radius Fractures

Surgical Indications (Primary Treatment)

• Volar locked plating is the recommended primary treatment for comminuted intraarticular fractures, providing earlier functional return and better functional outcomes compared to conservative management 1
• Surgical fixation is indicated for fractures with:
  • Postreduction radial shortening >3 mm 2
  • Dorsal tilt >10° 2
  • Intra-articular displacement 2
  • Any articular step-off ≥1 mm 3, 4

Why Bracing Fails for These Fractures

• Conservative management (including bracing) is not recommended for comminuted intraarticular fractures due to risk of joint incongruity and subsequent arthritis 1
• Intraarticular fractures require anatomic restoration of the joint surface to within 1 mm to minimize late osteoarthrosis 3
• Displaced intraarticular fractures cannot maintain adequate reduction with external immobilization alone 4

When Conservative Treatment May Be Considered

The AAOS guidelines are inconclusive about casting as definitive treatment for unstable fractures that are initially adequately reduced 2. However, this applies only to:

• Truly non-displaced or minimally displaced fractures
• Fractures that maintain acceptable alignment after closed reduction
• This does NOT apply to intraarticular fractures with significant displacement or comminution

Surgical Options in Order of Preference

1. Volar locked plating - provides best radiological outcomes for comminuted intraarticular fractures 5
2. Arthroscopic-assisted reduction - option for improved diagnostic accuracy and treatment of associated ligament injuries 1
3. External fixation - may be used but shows inferior radiological outcomes compared to volar plating for radial length, volar tilt, and ulnar variance 5

Critical Pitfalls to Avoid

• Do not attempt conservative management with bracing for displaced intraarticular fractures - this leads to malunion, joint incongruity, and post-traumatic arthritis 1, 3
• Failure to achieve articular congruity within 1 mm results in poor long-term outcomes 3, 4
• CT scanning should be obtained to improve diagnostic accuracy for fracture pattern and surgical planning 1, 3

Postoperative Management (After Appropriate Surgical Fixation)

• Active finger motion exercises should begin immediately following surgery to prevent stiffness 1
• Radiographic follow-up at approximately 3 weeks and at time of immobilization removal 1
• Early wrist motion is not routinely necessary following stable fracture fixation 1