Peripheral Nerve Entrapments & Neurological Conditions Flashcards
7 cards from real CCEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
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Tinel's sign, when positive at a site of nerve compression, indicates:
Answer: Nerve irritability or regeneration at a point of compression
Tinel's sign is positive when percussion over a compressed or regenerating nerve elicits distal paresthesia, indicating nerve irritability or regeneration at that site.
Suprascapular nerve entrapment most commonly occurs at which site?
Answer: The suprascapular notch
The suprascapular nerve most commonly becomes entrapped at the suprascapular notch, where it passes beneath the superior transverse scapular ligament.
Ulnar nerve entrapment at Guyon's canal most commonly affects which structures?
Answer: Hypothenar muscles and ulnar-innervated intrinsics
Guyon's canal syndrome affects the ulnar nerve at the wrist, producing weakness of the hypothenar muscles, ulnar-innervated intrinsics, and sensory changes in the ulnar digits.
The concept of 'double crush syndrome' refers to:
Answer: A nerve being entrapped at two separate anatomical sites simultaneously
Double crush syndrome describes a condition where a nerve is compressed at two locations along its course, with the proximal lesion making the distal nerve segment more susceptible to entrapment.
Radial tunnel syndrome is best differentiated from lateral epicondylitis by the location of maximal tenderness, which in radial tunnel syndrome is found:
Answer: Approximately 4–5 cm distal to the lateral epicondyle
In radial tunnel syndrome, maximal tenderness is found over the radial tunnel (4–5 cm distal to the lateral epicondyle), whereas in lateral epicondylitis tenderness is at the epicondyle.
Anterior tarsal tunnel syndrome involves entrapment of which nerve under the inferior extensor retinaculum on the dorsum of the foot?
Answer: Deep peroneal nerve
Anterior tarsal tunnel syndrome involves compression of the deep peroneal nerve and its branches under the inferior extensor retinaculum on the dorsum of the foot.
Morton's neuroma most commonly occurs in which intermetatarsal space?
Answer: 3rd–4th intermetatarsal space
Morton's neuroma most commonly occurs in the 3rd intermetatarsal space (between the 3rd and 4th metatarsal heads), where the medial and lateral plantar nerve branches communicate.