Standard Wrist External Fixator G32

The distal radius is the most commonly fractured bone in the human body. When a wrist fracture demands more than casting alone — when reduction must be maintained, distraction applied, and alignment actively managed — orthopedic surgeons reach for a reliable external fixation system. The G32 Standard Wrist External Fixator by Amis Orthopedic is that system. Built around a dual-pin configuration for enhanced biomechanical stability, the G32 handles the full spectrum of adult wrist trauma from straightforward Colles fractures to complex wrist dislocations and combined carpal injuries.

Dual-Pin Stability — When One Pin Is Not Enough

The defining difference between the G32 and single-pin wrist fixators is the dual-pin per bone segment configuration. At both the radius and the metacarpal, two pins engage the bone rather than one. This creates a four-point fixation construct with substantially greater resistance to:

• Rotational displacement — critical in unstable fracture patterns with rotational components
• Axial collapse — preventing shortening in osteoporotic or comminuted fractures
• Angular drift — maintaining volar tilt and radial inclination through the full consolidation period

For intraarticular fractures, high-energy wrist trauma, and cases in older patients with reduced bone density, the G32’s dual-pin construct provides the mechanical margin that single-pin systems may not.

Get Product Specifications — Download the G32 technical datasheet from Amis Orthopedic or speak with a product specialist for clinical guidance.

Precision Multiplanar Adjustment with Scale Markings

Wrist fracture management is not a set-and-forget procedure. As soft tissue swelling resolves, callus forms, and bone position changes over the weeks of fixation — surgeons need the ability to fine-tune alignment without returning to the operating room. The G32 makes this straightforward.

The frame provides three planes of independent adjustment:

1. Longitudinal distraction — apply or reduce traction force as healing progresses
2. Angular correction — adjust volar tilt and radial inclination under fluoroscopy
3. Rotational control — correct pronation-supination alignment errors

All adjustments are guided by engraved scale markings on the frame, providing measurable reference points for each correction. This supports precise, documented clinical decision-making and reproducible follow-up management.

Engineering for the Wrist’s Demanding Anatomy

The G32 frame geometry reflects careful study of the wrist’s surgical anatomy. The dual-pin screw configuration is optimized to:

• Place metacarpal pins (Φ2.5×60mm) through the second metacarpal, avoiding flexor and extensor tendon zones
• Place radial shaft pins (Φ3.5×70/80mm) proximal to the fracture site, with appropriate clearance from the extensor pollicis longus and radial nerve branches
• Maintain a dorsal pin approach that minimizes soft tissue tethering and allows postoperative physiotherapy without frame interference

The frame itself is machined from black anodized aircraft-grade aluminum alloy, balancing rigidity with the low weight required for patient tolerance during weeks of fixation. All screw components are 316L medical-grade stainless steel — corrosion-resistant and biocompatible.

Supports a Full Range of Clinical Pathways

The G32 integrates into multiple treatment strategies:

• Closed reduction and external fixation — the primary indication; apply after manipulation under anesthesia to maintain reduction
• Ligamentotaxis — use frame distraction forces to align intraarticular fragments via intact ligamentous attachments
• Bridge to open reduction — temporary stabilization while awaiting definitive internal fixation (volar plate)
• Definitive fixation in patients where internal fixation is contraindicated (anticoagulation, infection risk, medical comorbidity)
• Post-traumatic contracture release — controlled distraction to mobilize stiff or contracted wrist joints following previous injury

This clinical flexibility makes the G32 a practical addition to any orthopedic emergency or elective inventory.

Surgical Application Overview

1. Standard pre-operative preparation and sterile draping
2. Insert Φ3.5mm radial shaft pins under fluoroscopic guidance, proximal to the fracture
3. Insert Φ2.5mm metacarpal pins through the second metacarpal
4. Mount the G32 frame onto the inserted pins
5. Apply distraction, correct angulation, and adjust rotation to achieve fracture reduction
6. Lock all clamps securely with the 4mm Allen wrench
7. Confirm reduction quality with post-operative imaging
8. Follow standard external fixator pin-site care protocols during the fixation period

Clinical Indications

• Distal radius fractures: Colles, Smith, and Barton fracture types — including comminuted and intraarticular patterns
• Wrist dislocation: Radiocarpal and carpal dislocations requiring controlled distraction and alignment
• Carpal injuries: Selected trans-scaphoid perilunate dislocations and complex carpal fracture-dislocations
• Soft tissue reconstruction: Temporary stabilization during concurrent tendon repair or skin grafting
• Post-traumatic contracture: Controlled distraction for wrist stiffness and contracture release
• Deformity correction: Selected post-traumatic distal radius malunion requiring corrective osteotomy and fixation

Technical Specifications

Quality and Compliance

The G32 is manufactured by Amis Orthopedic in compliance with international orthopedic device standards. Every unit undergoes biocompatibility testing, mechanical integrity verification, and sterilization cycle validation before release. Full product documentation — including technical file, material certificates, and sterilization test reports — is available for hospital procurement and regulatory registration.

From Colles to Complex — The G32 Has You Covered

Wrist trauma covers a wide clinical spectrum. The G32 Standard Wrist External Fixator was designed to handle all of it — delivering dual-pin stability, scale-marked precision adjustment, and the construction quality your patients deserve. For orthopedic departments managing adult wrist trauma, the G32 is the dependable standard system.

Request a Free Quote — Speak with an Amis Orthopedic representative about G32 pricing, hospital supply contracts, and regulatory support for your market.

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