caa a22 4500 605456321 CHVBK 20210128100217.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00167-014-3212-1 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3212-1 Recovery in knee range of motion reaches a plateau by 12months after total knee arthroplasty [Elektronische Daten] [Zhihong Zhou, Khye Yew, Earnest Arul, Pak-Lin Chin, Keng Tay, Ngai-Nung Lo, Shi-Lu Chia, Seng Yeo] Purpose: The primary aim of this study was to identify the time point at which improvements in knee range of motion reach a plateau, if any. The secondary aim of this study was to investigate the correlation between the improvements in knee range of motion and patient-reported outcomes [Oxford knee score (OKS) and SF-36]. The hypothesis is that there is a time point at which the recovery in the knee range of motion after total knee arthroplasty (TKA) plateaus. Method: A prospective study of 145 patients who underwent TKA was conducted. All TKAs were performed by the same surgeon. OKS and SF-36 scores were measured preoperatively and at 6, 12, and 24months. Range of motion was measured preoperatively and at 1, 3, 6, 12, and 24months postoperatively. Results: This study shows that for surgeon/therapist reported range of motion, a plateau in recovery was reached at 12months after TKA. It was also found that range of extension is significantly correlated with OKS, whereas range of flexion was not significantly correlated with OKS. Conclusions: Knowledge of when patients fully recover after TKA will allow appropriate counseling of patients during preoperative consultation. Also, this knowledge will enable surgeons/therapists to better monitor the rehabilitation progress of TKA patients, and make adjustments to the rehabilitation protocol. In addition, our study shows that objective surgeon-/therapist-measured outcome (range of motion) has a significant correlation with subjective patient-reported outcomes (OKS). Hence, both outcome measures should be employed in the postoperative monitoring of patient progress. Level of evidence: Prospective case series, Level IV. Springer-Verlag Berlin Heidelberg, 2014 Total knee arthroplasty nationallicence Range of motion nationallicence Recovery plateau nationallicence Zhou Zhihong Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Yew Khye Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Arul Earnest Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore, Singapore aut Chin Pak-Lin Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Tay Keng Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Lo Ngai-Nung Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Chia Shi-Lu Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Yeo Seng Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1729-1733 0942-2056 23:6<1729 2015 23 167 https://doi.org/10.1007/s00167-014-3212-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-3212-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhou Zhihong Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 700 1- Yew Khye Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 700 1- Arul Earnest Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore, Singapore aut NATIONALLICENCE 700 1- Chin Pak-Lin Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 700 1- Tay Keng Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 700 1- Lo Ngai-Nung Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 700 1- Chia Shi-Lu Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 700 1- Yeo Seng Department of Orthopaedic Surgery, Singapore General Hospital, Academia Level 4, 20 College Road, 169856, Singapore, Singapore aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/6(2015-06-01), 1729-1733 0942-2056 23:6<1729 2015 23 167