COF Upper Extremity Orthotics 2

Question 1

A patient with radial nerve palsy presents with wrist drop. Which orthosis is MOST appropriate to restore functional hand use?

Accepted Answer

Dynamic wrist extension orthosis

Answer

A dynamic wrist extension orthosis (cock-up splint with outrigger) positions the wrist in extension, restoring tenodesis grip function lost due to radial nerve palsy.

Question 2

When fabricating a thumb spica orthosis for de Quervain's tenosynovitis, the thumb IP joint should be:

Accepted Answer

Left free to allow active motion

Answer

The IP joint is typically left free in a thumb spica for de Quervain's because the extensor pollicis longus does not pass through the first dorsal compartment.

Question 3

The 'safe position' for immobilizing an injured hand to prevent collateral ligament shortening is characterized by:

Accepted Answer

MCP flexion 70–90° with IP extension

Answer

The intrinsic-plus (safe) position — MCP 70–90° flexion with IPs extended — keeps collateral ligaments at maximum length, preventing contracture.

Question 4

A patient recovering from carpal tunnel release complains of hypersensitivity at the scar. Which orthotic intervention is MOST indicated?

Accepted Answer

Compression glove combined with desensitization program

Answer

A compression glove reduces edema and scar adherence while tactile desensitization addresses hypersensitivity following carpal tunnel release.

Question 5

Which forearm-based orthosis design is MOST appropriate for a patient with a proximal ulna fracture repaired with ORIF who requires controlled elbow motion?

Accepted Answer

Hinged elbow orthosis with range-of-motion stops

Answer

A hinged elbow orthosis with adjustable ROM stops allows controlled, protected motion after ORIF while restricting extremes of flexion and extension.

(COF) Certified Orthotic Fitter Practice Test

(COF) Certified Orthotic Fitter Practice Test

COF Upper Extremity Orthotics 2