The Relative Responsiveness and Construct Validity of the Spanish Version of the Dash Instrument for Outcomes Assessment in Open Carpal Tunnel Release

The objective of this study was to evaluate the responsiveness and construct validity of the Spanish version of the DASH as outcome measure for carpal tunnel surgery. The study population was 42 patients with the diagnosis of carpal tunnel syndrome (CTS) based on clinical and electrophysiological criteria. The clinical design was a classic Cohort study with measures the day before and 12 weeks after open carpal tunnel release. The Spanish version of the DASH was compared to the physical exam measures as dexterity time, grip and pinch strength, range of motion of the wrist (ROM) and two-point discrimination (2PPD). The responsiveness was evaluated based on the effect size (ES) and the standardised response means (SRM). The Spanish version of the CTS questionnaire (CTQ) and the Spanish version of the 36-item short-form health survey (SF-36) were self-administered to the same study population and followed the same clinical design. The hypothesis that the DASH instrument should present a responsiveness level higher than the SF-36 and lower than the CTQ was established to demonstrate the construct validity. The DASH instrument showed an ES of 0.68 and an SRM of 1.00. Responsiveness of traditional physical exam measures were lower, running from 0.35 (SRM) for dexterity time to 0.00 (ES) for key pinch strength. The SF-36 presented a responsiveness level (range from 0.07 to 0.14) lower that the DASH. The CTQ showed the highest level of responsiveness (ES = 1.41 and 0.7) (SRM = 1.75 and 0.51). In conclusion, The DASH instrument is more sensitive in detecting clinical change than the physical exam measures for use in clinical outcome studies of CTS done at 12 weeks after surgery. The Spanish DASH showed a responsiveness lower than the CTQ and higher than the SF-36 as a proof of a good construct validity.

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COMPARATIVE RESPONSIVENESS OF JAPANESE VERSIONS OF THE DASH AND SF-36 QUESTIONNAIRES AND PHYSICAL MEASUREMENT TO CLINICAL CHANGES AFTER CARPAL TUNNEL RELEASE

Hand Surgery ◽

10.1142/s0218810406003176 ◽

2006 ◽

Vol 11 (01n02) ◽

pp. 27-33 ◽

Cited By ~ 9

Author(s):

Toshihiko Imaeda ◽

Hitoshi Hirata ◽

Satoshi Toh ◽

Yasushi Nakao ◽

Jun Nishida ◽

...

Keyword(s):

Carpal Tunnel ◽

Short Form ◽

Carpal Tunnel Release ◽

Objective Assessment ◽

Pinch Strength ◽

Medical Outcomes ◽

Physical Measurements ◽

Sf 36 ◽

Tunnel Syndrome ◽

Clinical Changes

The purpose of the present study was to test the responsiveness of the Japanese Society for Surgery of the Hand version of the Disability of the Arm, Shoulder and Hand questionnaire (DASH-JSSH) by evaluating effect size (ES) and standardised response mean (SRM) in patients undergoing carpal tunnel release. Subjects comprised 25 patients with carpal tunnel syndrome. All subjects completed the DASH-JSSH, medical outcomes 36-item short-form health survey (SF-36) and visual analogue scale (VAS) for pain and underwent objective assessment of grip strength, pinch strength and static two-point discrimination before and three months after surgery. DASH-JSSH displayed the highest sensitivity to changes at three months, followed by VAS. All subscales of SF-36 were much less sensitive and both grip and pinch strength were unchanged over the three-month period. DASH-JSSH demonstrated more responsiveness to changes after carpal tunnel release than SF-36, VAS and physical measurements, and displayed correlations with subscales of SF-36.

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Temporal changes in grip and pinch strength after open carpal tunnel release and the effect of ligament reconstruction

The Journal Of Hand Surgery ◽

10.1016/s0363-5023(98)80088-9 ◽

1998 ◽

Vol 23 (1) ◽

pp. 48-54 ◽

Cited By ~ 29

Author(s):

David Netscher ◽

Anna K. Steadman ◽

John Thornby ◽

Victor Cohen

Keyword(s):

Carpal Tunnel ◽

Ligament Reconstruction ◽

Carpal Tunnel Release ◽

Temporal Changes ◽

Pinch Strength ◽

Open Carpal Tunnel Release

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Thumb Function and Electromyography Result after Modified Camitz Tendon Transfer

The Journal of Hand Surgery (Asian-Pacific Volume) ◽

10.1142/s0218810417500290 ◽

2017 ◽

Vol 22 (03) ◽

pp. 275-280 ◽

Cited By ~ 3

Author(s):

Claire Marie Durban ◽

Bernard Antolin ◽

Chung Ying Sau ◽

Sheung Wai Li ◽

Wing Yuk Ip

Keyword(s):

Carpal Tunnel Syndrome ◽

Carpal Tunnel ◽

Carpal Tunnel Release ◽

Pinch Strength ◽

Muscle Recovery ◽

Abductor Pollicis Brevis ◽

Palmaris Longus ◽

Contralateral Hand ◽

Tunnel Syndrome ◽

Open Carpal Tunnel Release

Background: Various techniques of opponensplasty have been developed with the aim of restoring the thumb function. The modified Camitz opponensplasty is a simple technique done together with an open carpal tunnel release. It restores thumb palmar abduction soon after the procedure, during such time that the abductor pollicis brevis (APB) is still recovering. The aim of this study was to assess the recovery and level of activity of the abductor pollicis brevis and palmaris longus (PL) muscles during thumb opposition and abduction after performing the modified Camitz opponensplasty. Methods: The records of 21 patients who underwent modified Camitz opponensplasty for severe carpal tunnel syndrome were reviewed. Thumb function was evaluated using the Van Wetter Apogee test, Kapandji index, tripod pinch strength, and power grip. Electromyography was utilized to evaluate APB recovery; ultrasonography was employed to evaluate PL activity. Results: Twenty patients reached 80% of the abduction height of the contralateral hand; the Kapandji index was good in thirteen. Palmaris longus activity was evaluated together with the APB muscle recovery. There was significant improvement in the average grip strength and average tripod pinch strength. However, this did not correlate with the degree of neurologic and muscular recovery of the APB. We surmise that the palmaris longus augmented the abductor pollicis brevis muscle even in those with full muscle recovery. Conclusions: The modified Camitz opponensplasty is a practical option for patients suffering from severe carpal tunnel syndrome with diminished thumb function.

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Transfer of the flexor carpi radialis to the abductor pollicis brevis tendon for the restoration of tip-pinch in severe carpal tunnel syndrome

Journal of Hand Surgery (European Volume) ◽

10.1177/1753193413481303 ◽

2013 ◽

Vol 39 (2) ◽

pp. 175-180 ◽

Cited By ~ 5

Author(s):

J. R. Danoff ◽

M. V. Birman ◽

M. P. Rosenwasser

Keyword(s):

Carpal Tunnel Syndrome ◽

Carpal Tunnel ◽

Carpal Tunnel Release ◽

Pinch Strength ◽

Abductor Pollicis Brevis ◽

Flexor Carpi Radialis ◽

Pinch Grip ◽

Tunnel Syndrome ◽

Open Carpal Tunnel Release ◽

Patients Experience

In patients with severe thenar atrophy secondary to carpal tunnel syndrome, we hypothesize that following open carpal tunnel release, concomitant transfer of the abductor pollicis brevis (APB) origin to the flexor carpi radialis (FCR) tendon will lead to improved patient function restoring palmar abduction and thumb opposition. We evaluated 14 patients through questionnaires and seven patients through additional physical examination (thumb range of motion, ability to tip pinch, grip/pinch strength) for a mean follow-up of 2.8 years. All patients showed evidence of palmar abduction with 71% demonstrating the ability to oppose the thumb to the tip and base of the small finger. The transfer of the APB origin to the FCR tendon can restore thumb abduction and opposition for thenar paralysis secondary to severe carpal tunnel syndrome. Patients experience good functional outcomes with the majority experiencing restored thumb opposition.

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