Article

Evidence in the musculoskeletal rehabilitation literature suggests
that psychosocial factors can influence pain levels and functional outcome.
The purpose of this study was to examine changes in select
psychosocial factors and their association with knee pain and function over 12
weeks after anterior cruciate ligament (ACL) reconstruction. DESIGN: This was a
prospective, longitudinal, observational study.
METHODS: Patients with ACL
reconstruction completed self-report questionnaires for average knee pain
intensity (numeric rating scale [NRS]), knee function (International Knee
Documentation Committee Subjective Knee Form [IKDC-SKF]), and psychosocial
factors (pain catastrophizing [Pain Catastrophizing Scale], fear of movement or
reinjury [shortened version of the Tampa Scale for Kinesiophobia (TSK-11)], and
self-efficacy for rehabilitation tasks [modified Self-Efficacy for Rehabilitation
Outcome Scale (SER)]). Data were collected at 4 time points after surgery
(baseline and 4, 8, and 12 weeks). Repeated-measures analyses of variance
determined changes in questionnaire scores across time. Hierarchical linear
regression models were used to examine the association of psychosocial factors
with knee pain and function. RESULTS: Seventy-seven participants completed the
study. All questionnaire scores changed across 12 weeks. Baseline psychosocial
factors did not predict the 12-week NRS or IKDC-SKF score. The 12-week change in
modified SER score predicted the 12-week change in NRS score (r(2)=.061), and the
12-week change in modified SER and TSK-11 scores predicted the 12-week change in
IKDC-SKF score (r(2)=.120). LIMITATIONS: The psychometric properties of the
psychosocial factor questionnaires are unknown in people with ACL reconstruction.
The study focused on short-term outcomes using only self-report measures.
CONCLUSIONS: Psychosocial factors are potentially modifiable early after ACL
reconstruction. Baseline psychosocial factor levels did not predict knee pain or
function 12 weeks postoperatively. Interventions that increase self-efficacy for
rehabilitation tasks or decrease fear of movement or reinjury may have potential
to improve short-term outcomes for knee pain and function.

Langue : ANGLAIS