Collins, N., Bierma-Zeinstra,
S., Crossley, K., van Linschoten, R., Vicenzino, B. and Middelkoop, M. British
Journal of Sports Medicine, 2013; 47: 227 – 233.
Patellofemoral
pain syndrome (“runner’s knee’’) can often affect participation in daily and
sports activities due to pain associated with patellofemoral joint loading
(stair climbing, running, cycling). Lack of evidence exist in regards to prognostic
factors determining prognosis in those with PFPS. Identification of such a
prognostic factors would provide the clinicians with characteristics that may predicts
one’s prognosis. The main aim of this study was to identify clinical predictors
of poor recovery at 3
and 12 months in those with PFPS. 310 individuals with PFPS were enrolled.
Study found that
those who reported PFPS of greater than 2 months duration and Anterior Knee
Pain Scale score less than 70/100 had a poorer 12-month prognosis. Pain
severity greater than 35/100, and worst or activity-related pain severity
greater than 60/100 (VAS), was also identified as a frequent prognostic factor.
Interestingly, 55% and 40% of participants had an unfavourable recovery at 3
and 12 months, respectively. Other variables including: age, gender, body mass
index (BMI), work type (sedentary/active) and sport participation (yes/no),
were not found as a significant predictive factors.
Authors
concluded that early management utilizing interventions with known efficacy in
reducing PFPS may enhance prognosis.
Are your observations from clinical experience in agreement with the study results?
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