Trigger Point Signs and Symptoms: Pain or stiffness of the fingers, impairment of hand motion and tenderness of the joints. Satellite or associated triggers: Intrinsic thumb muscles, Long flexors and extensors of the fingers, Latissimus Dorsi, Pectoralis major, Scalene, Lateral or medial head of Triceps brachii.Primary: The pain refers to the dorsum part of the hand, which extends into the little and the index fingers.Travell and Simons Trigger Point Pain Referral: Vascular supply: The superficial and the deep volar arches artery. Nerve Entrapment: Entrap the digital nerves that cause cutaneous hypoesthesia along side of the finger that is affected. Nerve Supply: Median nerve (C6, C7) innervates the two (2) radial fingers Ulnar nerve (C8) innervates the two (2) ulnar fingers. Insertion: Attach into the tendinous expansion of the extensor digitorum into the bases of the terminal phalanges of the medial 4 digits.Īction: Flex the fingers at the MP joints and extend the 2 distal phalanges.The 3rd attaches from the adjacent sides of the tendons of the middle and ring fingers, and the 4th attaches from the adjacent sides of the tendons of the ring and little fingers. The 1st and 2nd attach from the radial side and the palmar surfaces of the index and middle fingers. Origin: There are four lumbricals, all attaching from the tendons of the flexor digitorum profundus.The Pointer Plus is an easy to use trigger point (TP) locator which incorporates a push button stimulation feature to immediately treat Trigger point pain.
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