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Effects of forearm pronation/supination on carpal tunnel pressure.

Authors
Rempel-D; Bach-JM; Gordon-L; So-Y
Source
J Hand Surg 1998 Jan; 23(1):38-42
NIOSHTIC No.
20030580
Abstract
The effects of forearm rotation and metacarpophalangeal (MP) flexion on carpal tunnel pressure were investigated in 17 healthy adults who had no evidence of carpal tunnel syndrome (CTS). Pressure was continuously recorded with a saline-filled catheter inserted into the carpal tunnel and connected to a pressure transducer while test subjects slowly rotated the forearm from full pronation to full supination. Forearm rotation was repeated with MP flexion of 0 degrees, 45 degrees, and 90 degrees. Both forearm rotation and MP flexion, and their interaction term, significantly affected carpal tunnel pressure and accounted for most of the variability in the data. Highest mean pressures (55 mmHg) were recorded in full supination and 90 degrees MP flexion and lowest pressures (12 mmHg) were recorded at 45 degrees pronation and 45 degrees MP flexion. These data may be useful in the design of tasks and hand tools in the management and prevention of CTS.
Keywords
Hand-injuries; Carpal-tunnel-syndrome; Physiology; Physiopathology; Nerves
CODEN
JHSUDV
Publication Date
19980101
Document Type
Journal Article
Funding Amount
162000
Funding Type
Grant
Fiscal Year
1998
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-K01-OH-000121
Issue of Publication
1
ISSN
0363-5023
Source Name
Journal of Hand Surgery
State
CA
Performing Organization
Division of Environmental and Occupational Medicine, University of California at San Francisco, Richmond, California
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