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Work intensity and quality of life can be restored following double-level osteotomy in varus knee osteoarthritis
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Work intensity and quality of life can be restored following double-level osteotomy in varus knee osteoarthritis
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Journal Article
Work intensity and quality of life can be restored following double-level osteotomy in varus knee osteoarthritis
2023
Overview
Purpose
The purpose of this study was to assess changes in health-related quality of life (HRQL) and work intensity following double-level knee osteotomy (DLO). It was hypothesized that postoperative HRQL would be comparable to that of the general population and that work intensity can be restored in the short term.
Methods
Twenty-four patients (28 varus knees; mechanical tibiofemoral angle: −11.0 ± 3.0° (−6.0 to −17.0), age: 49.1 ± 9.5 (31–65) years) who underwent DLO were included. The duration the patients were unable to work was evaluated. HRQL was measured with the SF-36 questionnaire, which consists of a physical (PCS) and mental component summary score (MCS). The pre- to postoperative changes in the PCS and MCS were analysed. The PCS and MCS were also compared to those of the general population, who has a reference score value of 50 points. The work intensity measured with the REFA classification and the Tegner activity scale were assessed preoperatively and at the final postoperative follow-up examination (18.0 ± 10.0 (5–43) months).
Results
The duration that the patients were unable to work was 12.2 ± 4.4 (6–20) weeks. The PCS improved from 32.1 ± 11.3 (14.5–53.3) preoperatively to 54.6 ± 8.5 (25.2–63.7) (
p
< 0.001) at the final follow-up, and the MCS improved from 53.9 ± 11.1 (17.1–67.7) to 57.2 ± 3.1 (47.3–61.7) (n.s). The preoperative PCS was significantly lower than the reference score of the general population (
p
< 0.001), whereas the preoperative MCS was similar between the two groups (n.s
.
). At follow-up, no significant differences were observed between the PCS and the MCS of the patient group and those of the general population. Five patients who were unable to work prior to surgery due to knee symptoms returned to work with moderate (four patients) or even very heavy (one patient) workloads. The Tegner activity scale increased significantly from a median of 2.0 (0.0–5.0) to 4.0 (2.0–7.0) (
p
< 0.001).
Conclusion
Our results demonstrate an improvement in quality of life and return to working activity following DLO in the short term. The HRQL can be improved by DLO in patients with varus knee osteoarthritis to the level of the general population. These results can assist surgeons in discussing realistic expectations when considering patients for DLO.
Level of evidence
Study type: therapeutic, IV.
Publisher
Springer Berlin Heidelberg,John Wiley & Sons, Inc
Subject
