CHT Splinting & Orthotic Fabrication Flashcards
6 cards from real CHT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CHT Splinting & Orthotic Fabrication flashcards as text
A resting hand orthosis for a patient with rheumatoid arthritis should position the wrist at:
Answer: 0–15° extension
A resting orthosis for rheumatoid arthritis positions the wrist at 0–15° extension, MCPs in slight flexion (~15–20°), and IPs near full extension to rest inflamed joints in a functional, non-deforming position.
The safe position (intrinsic-plus position) for immobilizing a hand to prevent contracture is:
Answer: Wrist extended, MCPs flexed 70–90°, IPs extended
The safe (intrinsic-plus) position places the wrist in extension, MCPs in 70–90° flexion, and IPs in full extension to maintain ligament length and prevent contracture.
A dynamic extension splint with outrigger is most commonly used for which condition?
Answer: Boutonniere deformity
Dynamic PIP extension orthoses are a primary conservative treatment for boutonniere deformity, applying a constant low-load stretch to the PIP joint into extension.
When fabricating a thermoplastic orthosis, the recommended water temperature to soften most low-temperature thermoplastic materials (LTT) is:
Answer: 50–55°C (122–131°F)
Most low-temperature thermoplastics become pliable at 60–70°C; however, many clinical guidelines cite heating the water to around 60°C with material softening at approximately 60–65°C for safe skin application.
A figure-of-eight orthosis is primarily used to treat which digit deformity?
Answer: Swan neck deformity
The figure-of-eight (or ring) orthosis blocks PIP hyperextension while allowing full PIP flexion, directly addressing the PIP hyperextension component of swan neck deformity.
Which orthosis design is used to maintain thumb web space in cases of first web space contracture?
Answer: C-bar or opponens orthosis
A C-bar or opponens orthosis maintains the first web space by positioning the thumb in abduction and opposition, preventing or addressing contracture of the web space.