Interlimb Coordination in Patients Undergoing Total Knee Arthroplasty

• Published in: Physical Therapy Japan Vol. 47; no. 5; pp. 402 - 410
• Main Authors: WANAKA, Hideyuki, IWATA, Akira, SANO, Yuki, OHMINE, Toshimitsu, YAMAMOTO, Saki, SOMATOMO, Hikari, YASUDA, Haruhiko, NISHII, Takashi
• Format: Journal Article
• Language: Japanese
• Published: Japanese Society of Physical Therapy 2020
• Subjects: Interlimb coordination; Phase coordination index; Total knee arthroplasty
• ISSN: 0289-3770; 2189-602X
• DOI: 10.15063/rigaku.11576

Purpose: In this study, we compared interlimb coordination in patients before and after total knee arthroplasty (TKA) using the phase coordination index (PCI). Additionally, we investigated its association with other variables at each time.Methods: This study included 55 patients who underwent TKA (mean age 76.1 ± 7.4 years). We assessed and compared the preoperative PCI with the PCI measured on the day before discharge (approximately 17 days after TKA). Pearson's correlation and multiple regression analyses were used to determine factors affecting the PCI.Results: We observed no significant difference between the pre- (6.73% ± 3.09%) and post-TKA (6.94% ± 2.97%) PCI. The pre-TKA PCI was significantly correlated with knee extension strength on the nonoperative side and knee pain on the operative side, and knee extension strength on the nonoperative side was selected as an independent variable in this study. Postoperatively, a significant correlation was observed only between the PCI and patient age.Conclusions: This study showed that pre- and post-TKA interlimb coordination was comparable; however, different factors were associated with the pre- or post-TKA PCI.