Low correlation between functional performance and patient reported outcome measures in individuals with non-surgically treated ACL injury. (January 2021)

• Record Type: Journal Article
• Authors: Sonesson, Sofi; Österberg, Annika; Gauffin, Håkan; Ardern, Clare L.; Kvist, Joanna; Hägglund, Martin
• Is Part Of: Physical therapy in sport. Volume 47(2021)
• Page Start: 185
• Page End: 192
• Publication Date: 2021-01
• Subjects: ACL -- Knee function -- Psychological response -- Performance; Sports physical therapy -- Periodicals; Sports injuries -- Patients -- Rehabilitation -- Periodicals; Athletic Injuries -- diagnosis -- Periodicals; Athletic Injuries -- therapy -- Periodicals; Physical Therapy -- Periodicals; Sports Medicine -- Periodicals; 615.82088796
• DOI: 10.1016/j.ptsp.2020.12.006
• Languages: English
• ISSNs: 1466-853X

Abstract

Abstract: Objective: Describe a consecutive cohort of people with a non-surgically treated ACL injury and evaluate correlations between functional performance and patient reported outcome measures (PROMs). Design: Cross-sectional. Participants: Sixty-eight individuals (38 males, 18–45 years old) 2–5 years after ACL injury. Main outcome measures: Tegner Activity Scale, International Knee Documentation Committee Subjective Knee Form (IKDC-SKF), Anterior Cruciate Ligament Return to Sport after Injury scale (ACL-RSI) and ACL-Quality of Life (ACL-QoL) were completed. Functional performance was assessed using 4 hop tests and a squat test. Results: Mean IKDC-SKF score was 72 ± 17 and mean LSI on performance tests were above 90%. Tegner Activity Scale was reduced from median 8 pre-injury to 5 at follow up. Satisfaction with activity level was median 7 on a 10-point ordinal scale. Correlations were moderate to strong (r = 0.552–0.856) between PROMs, negligible to weak (r = 0.003–0.403) between performance tests and PROMs and negligible to moderate (r = 0.142–0.683) between performance tests. Conclusion: Functional performance had negligible or weak correlation to PROMs, which indicates the need for multi-modal assessment strategies. Activity level was reduced 2–5 years after a non-surgically treated ACL injury, but most patients were able to resume physical activity at a sufficient level to maintain health and displayed symmetrical functional performance. Level of evidence: Retrospective cohort study, Level III. Highlights: Functional performance had negligible or weak correlation to PROMs. Self-reported knee function was strongly correlated to knee-related quality of life. Functional performance was symmetrical with mean LSI above 90% in all tests. Activity level was reduced 2–5 years after a non-surgically treated ACL injury.