2021 ISAKOS Biennial Congress ePoster
Kinesiophobia is not related to knee function, muscle strength and self reported outcome measures after anterior cruciate ligament reconstruction.
Mihkel Luik, MSc, Tartu ESTONIA
Helena Saar, MSc, Tartu ESTONIA
Lisette Villers, BSc, Tartu ESTONIA
Tauno Koovit, MSc, Tartu, Räni ESTONIA
Rein Kuik, MD, Tartu ESTONIA
Madis Rahu, MD PhD, Tartu ESTONIA
Jüri T. Kartus, MD, PhD, Trollhättan SWEDEN
Leho Rips, MD, Tartu, EE ESTONIA
Tartu University Hospital, Tartu, Tartumaa, ESTONIA
FDA Status Not Applicable
Summary
Kinesiophobia is a notable issue 5 years after ACLR but is not related to knee muscle strength, function either self reported outcome measures
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Abstract
Background
Patients who have undergone Anterior Cruciate Ligament recontruction (ACLR) not seldom report long term subjective and objective deficits in their knee function. It is known that patients who suffer kinesiophobia can report worse outcomes in knee function.
Hypothesis
Patients with kinesiophobia have inferior self reported and functional outcomes after ACLR.
Methods
48 patients, 38 (79%) men and 10 (21%) women, mean age 30.8 (±7.1), were included in the study 4.7 (±0.9) years after ACLR. All patients were operated by two senior surgeons. Preoperative and postoperative assessements were performed by two sports specialized physical therapists. Patients completed the Knee injury and Osteoarthritis Outcome Score (KOOS), Oxford Knee score and Tampa Scale of Kinesiophobia (TSK-17). Quadriceps and hamstring muscle isokinetic strength was assessed at 60°/sec and 180°/sec using the HumacNorm dynamometer. Functional performance was tested with the single-leg-hop test for distance and the Y-balance test for anterior reach.
Results
19/48 patients (39.6%) reported a Tampa kinesiophobia score equal or higher than 37 points, above which is the cut off score for kinesiophobia. The KOOS Sports (p=0.06) and Quality of Life subscores (p=0.10) and the Oxford knee score (p=0.33) revealed no significant differences between patients with and without kinesiophobia. Isokinetic peak torque muscle strength deficits at 60°/sec and 180°/sec for knee flexion and extension were between 2% to 6% compared with the contraleteral side, with no significant differences between groups. The single-leg-hop test was 91.8% (±16.8) and 97.5% (±15.6) respectively in the group with and without kinesiophobia (n.s.). The Y-balance test also revealed no significant difference between groups.
Conclusion
At 5 years after ACLR kinesiophobia is present in a substantial amount of patients. It appears that it cannot be detected or evaluated using standard instruments used for assessment after ACLR.