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Forearm Fractures

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Edited by Carew Giberson-Chen and Jeffrey "Spud" Olson - 7/1/2021

Descriptors

Fracture location: Radial shaft, ulnar shaft, both bone

Fracture type:
- Simple: spiral, oblique, transverse
- Wedge/butterfly: intact, fragmentary
- Segmental: intact, fragmentary

Fracture characteristics:
- Displacement
- Angulation

Associated injuries:
- Galeazzi: distal 1/3 radial shaft fx + associated DRUJ injury, higher risk of DRUJ instability if fracture <7.5 cm from articular surface
- Monteggia: proximal 1/3 ulnar fx + associated radial head dislocation/instability
- Floating elbow
- Compartment syndrome

Exam Pearls

Upper extremity neurovascular exam

Carefully inspect skin to determine open vs closed

Good assessment of radial and ulnar pulses

Good assessment of median, radial, and ulnar nerve function

Evaluate for compartment syndrome: palpate compartments, NV exam, pain with passive stretch, pain out of proportion; consider Stryker needle if concerned

Workup

Radiographs: AP and lateral forearm XRs, AP and lateral wrist XRs, AP and lateral elbow XRs

Other imaging: XRs usually sufficient

Labs: Pre-op labs (CBC, BMP, T&S, CXR, EKG, UA, covid swab)

Other: Surgical consent, compartment checks

Management

Need for acute intervention: Yes, immobilization without reduction In case of Galeazzi and Monteggia injuries, the DRUJ or radiocapitellar joint should be reduced.

Weight-bearing and range of motion: NWB in splint

Type of immobilization: sugartong splint

Admission or discharge status: Admit for surgery

Anticoagulation: Lovenox 40mg QHS while admitted

Antibiotics: None unless open

Surgical Indications

Absolute: Open fracture Vascular compromise Concern for compartment syndrome

Relative: Forearm fractures are almost always operative unless patient is an unacceptable surgical candidate

Not an indication: None