There have been some publications that dispute the link between computer use / typing and the condition itself, which is undoubtedly real.
For example, from
The Journal of hand surgery 33 (7): 107680
Disparity between popular (Internet) and scientific illness concepts of carpal tunnel syndrome causation.
Scangas G, Lozano-Calderón S, Ring D.
Massachusetts General Hospital, Hand and Upper Extremity Service, Department of Orthopaedic Surgery, Boston, MA 02114, USA.
Abstract
PURPOSE:
To determine whether there are notable disparities between popular (Internet) and scientific (Index Medicus) theories of carpal tunnel syndrome (CTS) causation.
METHODS:
Reports from 3 sources were evaluated with regard to support for etiological theories of CTS: 1) patient-oriented information on CTS from the Internet, 2) recent physician-oriented information on CTS from medical journals indexed on Index Medicus, and 3) articles addressing the etiology of CTS from the 1997 National Institute for Occupational Safety and Health report. Multiple logistic regression analyses evaluated differences in etiological theories from the 3 sources.
RESULTS:
Internet sites implicated vitamin B(6) deficiency, tenosynovitis, and typing or computer use as causes for idiopathic CTS considerably more often and genetic predisposition considerably less often than recent Index Medicus scientific reports and reports reviewed by the National Institute for Occupational Safety and Health.
CONCLUSIONS:
There are notable disparities between popular (Internet) and scientific (Index Medicus) theories of CTS causation.