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Plast Reconstr Surg. 2020 Jan;145(1):94e-105e. doi: 10.1097/PRS.0000000000006326.

Reliability and Validity of Upper Extremity Patient-Reported Outcome Measures in Assessing Traumatic Finger Amputation Management.

Author information

1
Ann Arbor, Mich.; Arlington Heights, Ill.; and Taoyuan, Taiwan From the Section of Plastic Surgery, Department of Surgery, University of Michigan Medical School; The Plastic Surgery Foundation; and the Division of Rheumatology, Allergy and Immunology, Chang Gung Memorial Hospital. Michigan Medicine (Coordinating Center) Michigan Medicine (Coordinating Center) Michigan Medicine (Coordinating Center) Michigan Medicine (Coordinating Center) Plastic Surgery Foundation (Coordinating Center) Plastic Surgery Foundation (Coordinating Center) Anjo Kosei Hospital, Japan Chang Gung Memorial Hospital, Taiwan Chang Gung Memorial Hospital, Taiwan China-Japan Union Hospital of Jilin University, People's Republic of China China-Japan Union Hospital of Jilin University, People's Republic of China Curtis National Hand Center at MedStar Union Memorial Hospital Curtis National Hand Center at MedStar Union Memorial Hospital Ganga Hospital, India Ganga Hospital, India Japanese Red Cross Otsu Hospital, Japan Nagoya University Hospital Nara City Hospital, Japan National University Hospital, Singapore National University Hospital, Singapore The Ohio State University The Ohio State University Regions Hospital, Minnesota Regions Hospital, Minnesota Regions Hospital, Minnesota Southern Illinois University Medicine Southern Illinois University Medicine University of Washington Medicine, Seattle University of Washington Medicine, Seattle University of Pittsburgh Medical Center University of Pittsburgh Medical Center University of Wisconsin Health University of Wisconsin Health Vanderbilt University Medical Center Vanderbilt University Medical Center now moved to Southern Illinois University School of Medicine W Hospital, Daegu, Republic of Korea W Hospital, Daegu, Republic of Korea Washington University Medical Centers Washington University Medical Centers Washington University Medical Centers Washington University Medical Centers.

Abstract

BACKGROUND:

This study investigates the psychometric properties of patient-reported outcome instruments for assessing outcomes in postsurgical traumatic digit amputation patients. The authors hypothesize that the Michigan Hand Outcomes Questionnaire (MHQ) and Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire are the most valid and reliable instruments.

METHODS:

The authors studied traumatic digit amputation patients as part of the Finger Replantation and Amputation Challenges in Assessing Impairment, Satisfaction, and Effectiveness (FRANCHISE) study initiated by The Plastic Surgery Foundation. The MHQ, DASH questionnaire, Patient-Reported Outcomes Measurement Information System (PROMIS), and 36-Item Short-Form Health Survey were used to assess patients at least 1 year postoperatively. Internal consistency was measured by Cronbach's alpha and criterion validity with Pearson correlation coefficient (r). Construct validity was tested with four predefined hypotheses. Discriminant validity was analyzed by receiver operating characteristic curves.

RESULTS:

One hundred sixty-eight replantation and 74 revision amputation patients met the inclusion criteria. All instruments demonstrated fair to good internal consistency in both cohorts (0.7 < α < 0.9). The MHQ and DASH questionnaire scores correlated strongly (r > 0.60) in both cohorts. The 36-Item Short-Form Health Survey had moderate to weak correlation with the remaining instruments, and its mental component had poor discriminant validity (area under the curve, 0.64 to 0.67). The MHQ, DASH questionnaire, and PROMIS demonstrated good construct validity confirming 75 to 100 percent of predefined hypotheses, whereas the 36-Item Short-Form Health Survey confirmed only 25 percent.

CONCLUSIONS:

The authors recommend using the Michigan Hand Outcomes Questionnaire or the Disabilities of the Arm, Shoulder and Hand questionnaire when assessing patient-reported outcomes in digit amputation patients based on good internal consistency and validity. The Patient-Reported Outcomes Measurement Information System has fair validity and reliability but should be an adjunct instrument. The 36-Item Short-Form Health Survey should not be used as a primary assessment tool, but as an adjunct to assess overall quality of life.

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