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Contribution to the study of stresses in the thumb column during key pinch grip
Hand Surgery and RehabilitationThe aim of this study was to calculate the stress acting on the trapeziometacarpal joint during an key pinch grip.We used profile X-rays of the thumb to measure the various bony and muscle lever arms. We assessed the angles of action of the muscular elements involved in the thumb column.
Pascal Ledoux
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Journal of Pediatric Orthopaedics B, 2006
The key pinch force in a group of 262 healthy children between 5 and 12 years was measured. A clear correlation was observed between age and key pinch strength. The differences between the left and right hand grips and between girls and boys were not significant.
Luc, De Smet, Arne, Decramer
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The key pinch force in a group of 262 healthy children between 5 and 12 years was measured. A clear correlation was observed between age and key pinch strength. The differences between the left and right hand grips and between girls and boys were not significant.
Luc, De Smet, Arne, Decramer
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The Key Pinch Stress Radiograph to Evaluate Dorsal Subluxation in the Basilar Thumb Joint
Journal of Biomechanical Engineering, 2021Abstract The basilar thumb joint is the joint second most commonly affected by osteoarthritis (OA) in the hand. Evaluation of dorsal subluxation of the thumb during a functional task such as key pinch could help assess OA risk. The objectives of this study were to determine the best imaging angle for measuring thumb dorsal subluxation ...
Nolan M, Norton +4 more
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Implant provision of key, pinch and power grips in a C6 tetraplegic
Medical & Biological Engineering & Computing, 1994An 11-channel multiplexed stimulator of nerves and muscles in the left forearm was implanted for hand control in January 1986 in a 21 year old woman who, after sustaining a C6 spinal lesion 7 years earlier, had voluntary shoulder and elbow movement but paralysed hands, trunk and legs. The patient controls the stimulation via a microcomputer control box
T A, Perkins +4 more
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Hand grip and key pinch strength in patients with Behçet's disease
Isokinetics and Exercise Science, 2008Background: Behcet's disease is predominantly an inflammatory disease with oral and genital ulcus, uveitis and erythema nodosum. It is a chronic disease with unprecetended remission and activation periods. Behçet's disease may also affect extremities in the form of arthritis, myositis, enthesis, tenosynovitis and dactylitis.
Ayan, Irfan +4 more
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One-stage key pinch and release with thumb carpal-metacarpal fusion in tetraplegia
The Journal of Hand Surgery, 1992One-stage key pinch and release with carpal-metacarpal fusion, extensor pollicis longus tenodesis, and motor transfer to flexor pollicis longus were analyzed for functional results in tetraplegic patients. Eighteen patients (21 hands)--all with International Classification OCu:4 hand function or worse--were studied. Average follow-up was 42 months. All
J H, House, J, Comadoll, A L, Dahl
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Intertrial Rest for Maximum Grip and Key Pinch Strength in Japanese Young Adults
The American Journal of Occupational Therapy, 2019Abstract OBJECTIVE. This study investigated the most appropriate intertrial rest period for maximum grip and key pinch strength measurements involving three trials. METHOD. The study included 40 male and 40 female participants. Using a repeated-measures design, six intertrial rest periods—15 s, 30 s, 60 s, 90 s, 120 s, and
Masaki, Kurosaki, Kimito, Momose
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Journal of Orthopaedic Research, 2023
AbstractThe brachioradialis (BR) to flexor pollicis longus (FPL) tendon transfer surgery is a common procedure used to restore key pinch grip for incomplete spinal cord injury patients. However, the procedure only restores 22% of the physiological grip strength, which is important for successfully grasping objects and minimizing fatigue. The purpose of
Hantao Ling +3 more
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AbstractThe brachioradialis (BR) to flexor pollicis longus (FPL) tendon transfer surgery is a common procedure used to restore key pinch grip for incomplete spinal cord injury patients. However, the procedure only restores 22% of the physiological grip strength, which is important for successfully grasping objects and minimizing fatigue. The purpose of
Hantao Ling +3 more
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The Journal of Hand Surgery: Journal of the British Society for Surgery of the Hand, 1987
67 patients with 176 repaired flexor tendons have been reviewed after a mean follow-up interval of 26.4 months. After repair, mean grip strength was 74.5%, mean finger flexion pressure 76.8% and mean finger pinch pressure 74.7% of that of the opposite uninjured hand or digit. For 16 patients with repaired flexor pollicis longus tendons, mean key pinch
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67 patients with 176 repaired flexor tendons have been reviewed after a mean follow-up interval of 26.4 months. After repair, mean grip strength was 74.5%, mean finger flexion pressure 76.8% and mean finger pinch pressure 74.7% of that of the opposite uninjured hand or digit. For 16 patients with repaired flexor pollicis longus tendons, mean key pinch
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The effect of thumb interphalangeal joint position on strength of key pinch
The Journal of Hand Surgery, 1986Thirty normal male and female subjects participated in a study to determine if the interphalangeal (IP) joint position of the thumb affects the outcome of lateral pinch strength tests. The subjects performed strong lateral pinch for three trials with both the thumb IP joint flexed and extended. The results showed that when flexion of the thumb IP joint
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