title: Usefulness of QuickDASH in patients with cervical laminoplasty.
abstract: OBJECTIVE
  Clumsiness and numbness of the upper extremity is one of the most common complaints of patients with cervical myelopathy. However, most previous evaluations after cervical laminoplasty have only been based on physicians' points of view. We used Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) self-report questionnaire, which was designed to measure physical function and symptoms in people with upper-limb disorders to evaluate functional outcomes after laminoplasty.
  
  
  METHODS
  Ninety-four patients who underwent laminoplasty for cervical myelopathy and replied to the questionnaire were included in this study. The average age was 62 years, and mean follow-up period was 61 months. The Japanese Orthopedic Association (JOA) score, Neck Disability Index (NDI), Short-Form Health Questionnaire of 36 questions (physical component score, PCS), upper-extremity pain (Numerical Rating Scale), and QuickDASH (0-100, 0 being least severe) were used to evaluate surgical outcomes. Satisfaction with treatment was also investigated, and internal consistency and criterion-related validity were evaluated. The QuickDASH cutoff value for patient satisfaction was determined by receiver operating characteristic curve (ROC) analysis.
  
  
  RESULTS
  The mean total JOA scores were 10 before and 13 after surgery, and average postoperative QuickDASH score was 30. Cronbach α of the QuickDASH was 0.94. QuickDASH was significantly correlated with JOA score for upper-extremity motor and sensation, NDI, PCS, and pain. Cutoff value of the QuickDASH was 34.0 by ROC analysis. Significantly better QuickDASH scores were found for patients who were satisfied with treatment than for those who were not, whereas JOA score for upper-extremity motor function did not show a significant difference.
  
  
  CONCLUSIONS
  QuickDASH had significant correlations with disease-specific JOA scores and other generic outcome measures. Moreover, QuickDASH significantly reflected patients' satisfaction with treatment, whereas the JOA score for upper-extremity motor function did not.
  
  
  CONCLUSIONS
  QuickDASH was useful in evaluating upper-extremity functional outcomes after cervical laminoplasty.
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Nakamoto
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Electronic address: yoo-tky@umin.ac.jp.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Oshima
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Katsushi
authors.initials: K
authors.lastname: Takeshita
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Chikuda
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Ono
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Taniguchi
authors.affiliation: Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Sakae
authors.initials: S
authors.lastname: Tanaka
mesh_terms: D002574:Cervical Vertebrae / Q000601:surgery*; D004185:Disability Evaluation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007796:Laminectomy; D008297:Male; D008875:Middle Aged; D019547:Neck Pain / Q000209:etiology / Q000534:rehabilitation / Q000601:surgery*; D010147:Pain Measurement; D017060:Patient Satisfaction; D012372:ROC Curve; D012189:Retrospective Studies; D013118:Spinal Cord Diseases / Q000150:complications / Q000534:rehabilitation / Q000601:surgery*; D011795:Surveys and Questionnaires; D013997:Time Factors; D016896:Treatment Outcome