PMID- 33076214 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201103 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 9 IP - 10 DP - 2020 Oct 15 TI - Estimating Minimal Clinically Important Differences for Knee Range of Motion after Stroke. LID - 10.3390/jcm9103305 [doi] LID - 3305 AB - The importance of knee sagittal kinematic parameters, as a predictor of walking performance in post-stroke gait has been emphasised by numerous researchers. However, no studies so far were designed to determine the minimal clinically important differences (MCID), i.e., the smallest difference in the relevant score for the kinematic gait parameters, which are perceived as beneficial for patients with stroke. Studies focusing on clinically important difference are useful because they can identify the clinical relevance of changes in the scores. The purpose of the study was to estimate the MCID for knee range of motion (ROM) in the sagittal plane for the affected and unaffected side at a chronic stage post-stroke. Fifty individuals were identified in a database of a rehabilitation clinic. We estimated MCID values using: an anchor-based method, distribution-based method, linear regression analysis and specification of the receiver operating characteristic (ROC) curve. In the anchor-based study, the mean change in knee flexion/extension ROM for the affected/unaffected side in the MCID group amounted to 8.48 degrees /6.81 degrees (the first MCID estimate). In the distribution-based study, the standard error of measurement for the no-change group was 1.86 degrees /5.63 degrees (the second MCID estimate). Method 3 analyses showed 7.71 degrees /4.66 degrees change in the ROM corresponding to 1.85-point change in the Barthel Index. The best cut-off point, determined with ROC curve, was the value corresponding to 3.9 degrees /3.8 degrees of change in the knee sagittal ROM for the affected/unaffected side (the fourth MCID estimate). We have determined that, in chronic stroke, MCID estimates of knee sagittal ROM for the affected side amount to 8.48 degrees and for the unaffected side to 6.81 degrees . These findings will assist clinicians and researchers in interpreting the significance of changes observed in kinematic sagittal plane parameters of the knee. The data are part of the following clinical trial: Australian New Zealand Clinical Trials Registry: ACTRN12617000436370. FAU - Guzik, Agnieszka AU - Guzik A AUID- ORCID: 0000-0002-4582-4383 AD - Department of Physiotherapy, Institute of Health Sciences, Medical College, University of Rzeszow, 35-959 Rzeszow, Poland. FAU - Druzbicki, Mariusz AU - Druzbicki M AUID- ORCID: 0000-0003-4511-8419 AD - Department of Physiotherapy, Institute of Health Sciences, Medical College, University of Rzeszow, 35-959 Rzeszow, Poland. FAU - Wolan-Nieroda, Andzelina AU - Wolan-Nieroda A AD - Department of Physiotherapy, Institute of Health Sciences, Medical College, University of Rzeszow, 35-959 Rzeszow, Poland. FAU - Turolla, Andrea AU - Turolla A AUID- ORCID: 0000-0002-1609-8060 AD - Laboratory of Kinematics and Robotics IRCCS San Camillo Hospital, 30126 Venice, Italy. FAU - Kiper, Pawel AU - Kiper P AD - Azienda ULSS 3 Serenissima Physical Medicine and Rehabilitation Unit, 30126 Venice, Italy. LA - eng PT - Journal Article DEP - 20201015 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC7602397 OTO - NOTNLM OT - gait OT - hemiplegia OT - minimal clinically important difference OT - stroke COIS- The authors declare no conflict of interest. EDAT- 2020/10/21 06:00 MHDA- 2020/10/21 06:01 PMCR- 2020/10/15 CRDT- 2020/10/20 01:02 PHST- 2020/09/14 00:00 [received] PHST- 2020/09/30 00:00 [revised] PHST- 2020/10/11 00:00 [accepted] PHST- 2020/10/20 01:02 [entrez] PHST- 2020/10/21 06:00 [pubmed] PHST- 2020/10/21 06:01 [medline] PHST- 2020/10/15 00:00 [pmc-release] AID - jcm9103305 [pii] AID - jcm-09-03305 [pii] AID - 10.3390/jcm9103305 [doi] PST - epublish SO - J Clin Med. 2020 Oct 15;9(10):3305. doi: 10.3390/jcm9103305.