Yoshitomo Saiki1,2, Tomohiro Ojima3, Tamon Kabata1, Naoyuki Kubo2, Seigaku Hayashi3, Hiroyuki Tsuchiya1. 1. Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan. 2. Department of Physical Therapy Rehabilitation, Fukui General Hospital, Fukui, Japan. 3. Department of Orthopaedic Surgery, Fukui General Hospital, Fukui, Japan.
Abstract
OBJECTIVES: This study aimed to investigate the effect of diabetes mellitus (DM) on knee extension/flexion angle and its early clinical course after total knee arthroplasty (TKA). METHODS: Patients who received TKA were retrospectively divided into two groups based on haemoglobinA1c level; the DM group (23 knees) and the control group (23 knees matched for baseline characteristics). The passive knee extension/flexion angle, gait speed and Japanese Orthopaedic Association (JOA) score were evaluated preoperatively and at 1, 6 and 12 months postoperatively. RESULTS: There was no significant difference in the passive knee flexion angle at 1 and 6 months postoperatively between the groups (p = .302, p = .160, respectively). The passive knee flexion angle was significantly lower at 12 months postoperatively in the DM group than the control group (p = .014). In the DM group, the passive knee flexion angle at 6 and 12 months significantly decreased compared with that at 1 month postoperatively (p = .021, p < .001, respectively). There were no significant differences in the knee extension angle, gait speed and JOA score between the groups. CONCLUSION: Patients with DM are likely to experience passive knee flexion angle exacerbating from 1 to 6 months after TKA.
OBJECTIVES: This study aimed to investigate the effect of diabetes mellitus (DM) on knee extension/flexion angle and its early clinical course after total knee arthroplasty (TKA). METHODS: Patients who received TKA were retrospectively divided into two groups based on haemoglobinA1c level; the DM group (23 knees) and the control group (23 knees matched for baseline characteristics). The passive knee extension/flexion angle, gait speed and Japanese Orthopaedic Association (JOA) score were evaluated preoperatively and at 1, 6 and 12 months postoperatively. RESULTS: There was no significant difference in the passive knee flexion angle at 1 and 6 months postoperatively between the groups (p = .302, p = .160, respectively). The passive knee flexion angle was significantly lower at 12 months postoperatively in the DM group than the control group (p = .014). In the DM group, the passive knee flexion angle at 6 and 12 months significantly decreased compared with that at 1 month postoperatively (p = .021, p < .001, respectively). There were no significant differences in the knee extension angle, gait speed and JOA score between the groups. CONCLUSION: Patients with DM are likely to experience passive knee flexion angle exacerbating from 1 to 6 months after TKA.
Entities:
Keywords:
Analysis of variance; diabetes mellitus; knee flexion angle; propensity matching; total knee arthroplasty