PMID- 26324283 OWN - NLM STAT- MEDLINE DCOM- 20160706 LR - 20220321 IS - 1432-0932 (Electronic) IS - 0940-6719 (Linking) VI - 24 IP - 12 DP - 2015 Dec TI - Assessment of the minimum clinically important difference in neurological function and quality of life after surgery in cervical spondylotic myelopathy patients: a prospective cohort study. PG - 2918-23 LID - 10.1007/s00586-015-4208-3 [doi] AB - PURPOSE: The purpose of this study was to evaluate the application of the minimum clinically important difference (MCID) concept to postoperative clinical results by using a prospective cohort study in Chinese patients with cervical spondylotic myelopathy (CSM). METHODS: The sample consisted of 113 patients who underwent surgical treatment for CSM in our hospital between February 2008 and November 2012. The preoperative and 1-year postoperative modified Japanese Orthopaedic Association (mJOA) scores, mJOA score recovery rate, physical component summary (PCS) and mental component summary (MCS) of the Short Form 36 were collected. The MCID of each outcome measurement was calculated by four approaches including average change, minimum detectable change, change difference and receiver operating characteristic curve. The responsiveness of each measurement was then analyzed. RESULTS: The patients presented a statistically significant improvement (p < 0.01) postoperatively in mJOA, PCS, and MCS. The MCID calculated by four approaches varied from 4.09 to 9.62 for the PCS, 3.11 to 7.41 for the MCS, 1.25 to 3.07 for mJOA score, and 31.37 to 44.02% for mJOA recovery rate. In addition, the improvement of the mJOA score owned the highest responsiveness of the four outcome measurements. CONCLUSIONS: The threshold value of the MCID was determined by the choice of the assessment approach. In addition, the recovery rate of the mJOA score appeared to be the most valid and responsive measure of effectiveness of surgery in CSM patients. FAU - Zhou, Feifei AU - Zhou F AD - Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China. FAU - Zhang, Yilong AU - Zhang Y AD - Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China. FAU - Sun, Yu AU - Sun Y AD - Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China. sunyuor@163.com. FAU - Zhang, Fengshan AU - Zhang F AD - Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China. FAU - Pan, Shengfa AU - Pan S AD - Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China. FAU - Liu, Zhongjun AU - Liu Z AD - Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China. LA - eng PT - Journal Article DEP - 20150901 PL - Germany TA - Eur Spine J JT - European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society JID - 9301980 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Cervical Vertebrae/*surgery MH - Female MH - Health Status MH - Humans MH - Male MH - Middle Aged MH - Neurodegenerative Diseases/*diagnosis MH - Neurologic Examination MH - Prospective Studies MH - *Quality of Life MH - ROC Curve MH - Spinal Cord Diseases/physiopathology/psychology/*surgery MH - Spondylosis/physiopathology/psychology/*surgery MH - Treatment Outcome OTO - NOTNLM OT - Cervical spine OT - Cervical spondylotic myelopathy OT - Minimum clinically important difference OT - Modified Japanese Orthopaedic Association score OT - Short Form 36 EDAT- 2015/09/02 06:00 MHDA- 2016/07/07 06:00 CRDT- 2015/09/02 06:00 PHST- 2015/01/29 00:00 [received] PHST- 2015/08/22 00:00 [accepted] PHST- 2015/08/22 00:00 [revised] PHST- 2015/09/02 06:00 [entrez] PHST- 2015/09/02 06:00 [pubmed] PHST- 2016/07/07 06:00 [medline] AID - 10.1007/s00586-015-4208-3 [pii] AID - 10.1007/s00586-015-4208-3 [doi] PST - ppublish SO - Eur Spine J. 2015 Dec;24(12):2918-23. doi: 10.1007/s00586-015-4208-3. Epub 2015 Sep 1.