Long-term functional, subjective and psychological results after single digit replantation

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Abstract

Objective

The aim of this study was to analyse the long-term functional, subjective, and psychological results after single-digit replantation.

Methods

Thirty cases of digital replantation (14 thumbs, 12 index fingers, 2 middle fingers, 1 ring finger, and 1 little finger) in 30 patients (7 females and 23 males) with a mean age of 44.2 years (20–65 years) were evaluated at the end of a mean follow-up time of 36 months (19–50 months). The active range of motion of joints, grip and pinch strength, cutaneous sensibility, upper-extremity functioning, and subjective satisfaction were determined using the Disability of Arm, Shoulder, and Hand (DASH) questionnaire and the Michigan Hand Outcomes questionnaire (MHQ). Psychological sequelae, including depression, anxiety, and posttraumatic stress disorder (PTSD), were assessed. A correlation analysis among variables was also performed.

Results

The mean score for the DASH questionnaire was 6.6 (range: 0–39.2). The symptom of cold intolerance occurred in 53% of the patients. Two patients were diagnosed with depression, and only one patient exhibited PTSD. The DASH score had a good statistical correlation with total grip strength, pinch grip strength, and static two-point discrimination (S-2PD) ( P < 0.05). Several aspects of the MHQ were also statistically relevant to some or all of the three objective results. Furthermore, the grip strength showed significant correlation with DASH and most aspects of the MHQ in multivariate logistic regression analysis ( P < 0.05).

Conclusion

Total grip strength is the most important factor positively related to subjective outcomes. The incidence rates of psychological symptoms after digit replantation are very low at long-term follow-up.

Level of evidence

Level IV, therapeutic study.

Related collections

Most cited references 25

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Reliability and validity testing of the Michigan Hand Outcomes Questionnaire.

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In this study, psychometric principles were used to develop an outcomes questionnaire capable of measuring health state domains important to patients with hand disorders. These domains were hypothesized to include (1) overall hand function, (2) activities of daily living (ADL), (3) pain, (4) work performance, (5) aesthetics, and (6) patient satisfaction with hand function. An initial pool of 100 questions was pilot-tested for clarity in 20 patients; following factor analysis, the number of questions was reduced to a 37-item Michigan Hand Outcomes Questionnaire (MHQ). The MHQ, along with the Short Form-12, a generic health status outcomes questionnaire, was then administered to 200 consecutive patients at a university-based hand surgery clinic and was subjected to reliability and validity testing. The mean time required to complete the questionnaire was 10 minutes (range, 7-20 minutes). Factor analysis supported the 6 hypothesized scales. Test-retest reliability using Spearman's correlation demonstrated substantial agreement, ranging from 0.81 for the aesthetics scale to 0.97 for the ADL scale. In testing for internal consistency, Cronbach's alphas ranged from 0.86 for the pain scale to 0.97 for the ADL scale (values >0.7 for Cronbach's alpha are considered a good internal consistency). Correlation between scales gave evidence of construct validity. In comparing similar scales in the MHQ and the Short Form-12, a moderate correlation (range, 0.54-0.79) for the ADL, work performance, and pain scales was found. In evaluating the discriminate validity of the aesthetics scale, a significant difference (p = .0012) was found between the aesthetics scores for patients with carpal tunnel syndrome and patients with rheumatoid arthritis. The MHQ is a reliable and valid instrument for measuring hand outcomes. It can be used in a clinic setting with minimal burden to patients. The questions in the MHQ have undergone rigorous psychometric testing, and the MHQ is a promising instrument for evaluation of outcomes following hand surgery.

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Responsiveness is an important property of an outcomes questionnaire. It can be defined as the ability of an instrument to capture important changes in a patient's health status over time. The authors previously designed the Michigan Hand Outcomes Questionnaire (MHQ), a hand-specific outcomes instrument that contains six distinct scales: (1) overall hand function, (2) activities of daily living, (3) pain, (4) work performance, (5) aesthetics, and (6) patient satisfaction with hand function. In the first study, the authors demonstrated that the MHQ is a reliable and valid instrument for the hand. The purpose of this second study is to assess the responsiveness, or sensitivity, of the MHQ to clinical change in patient status. A total of 187 consecutive patients with chronic hand disorders completed a baseline MHQ prior to receiving treatment at a university plastic surgery clinic. Approximately 6 to 18 months after completing the first questionnaire, patients were sent a follow-up MHQ by mail. The second questionnaire was identical to the first, with the exception of one additional question added to each of the six MHQ scales. This additional question asked patients to rate the change in their hands since completing the last questionnaire using a seven-point response scale. Spearman's correlation coefficient was used to correlate the responses from patients' self-assessment questions with the actual score change (after score - before score). The response rate for the second administration was 49% (92 questionnaires returned)-a fairly good rate of return for mail surveys. There were no significant differences in gender, race, education, and income between responders and nonresponders. When patients' self-assessment of change was correlated with the change in the six scale scores over time, all six correlations were statistically significant, with p < 0.05. The correlations ranged from 0.25 for the aesthetics scale to 0.43 for the pain scale. The MHQ was responsive using patients' self-assessment of their clinical change. Future studies will evaluate the responsiveness of the MHQ compared with objective physiological measures such as grip strength, range of motion, and the Jebson-Taylor test. Additionally, research is underway to assess the responsiveness of the MHQ for specific procedures, including metacarpophalangeal arthroplasties for rheumatoid arthritis and microvascular toe-to-hand reconstructions.

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Most measures of posttraumatic stress disorder (PTSD) symptoms are limited in that they focus on a single traumatic event and cannot be used to assess symptoms in persons who report no traumatic events. The utility of the brief PTSD measures that do not key to a single trauma is limited by lengthiness and high reading levels. The Screen for Posttraumatic Stress Symptoms (SPTSS) is a brief, self-report screening instrument for PTSD symptoms that overcomes these limitations by assessing PTSD symptoms using a low reading level and without keying them to a specific traumatic event. In a sample of 136 psychiatric inpatients, the SPTSS showed good internal consistency, a high sensitivity rate, and a moderate specificity rate. The concurrent and construct validity of the SPTSS were supported by strong correlations with symptom and trauma experience measures and by comparisons of SPTSS scores of groups with different trauma histories.

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Author and article information

Contributors

Jun Tan

Journal

Journal ID (nlm-ta): Acta Orthop Traumatol Turc

Journal ID (iso-abbrev): Acta Orthop Traumatol Turc

Title: Acta Orthopaedica et Traumatologica Turcica

Publisher: Turkish Association of Orthopaedics and Traumatology

ISSN (Print): 1017-995X

ISSN (Electronic): 2589-1294

Publication date PMC-release: 14 February 2018

Publication date (Print): March 2018

Publication date (Electronic): 14 February 2018

Volume: 52

Issue: 2

Pages: 120-126

Affiliations

[a ]Department of Medical Research Center of Jiangsu Province, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China

[b ]Department of Internal Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China

Author notes

[∗ ]Corresponding author. Department of Medical Research Center of Jiangsu Province, Affiliated Hospital of Nantong University, 20 West Temple Road, Nantong 226001, Jiangsu, China. 33240338@ 123456qq.com

Article

Publisher ID: S1017-995X(16)30189-4

DOI: 10.1016/j.aott.2017.09.001

PMC ID: 6136331

PubMed ID: 29454562

SO-VID: 84e1cceb-5107-4dce-8b0d-9250060fbcff

License:

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

History

Date received : 24 September 2016

Date revision received : 2 September 2017

Date accepted : 6 September 2017

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