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Advancement of a diffuse pain pattern with time
is connected with poorer clinical outcomes, therefore clinicians and
researchers could use knee pain mapping to find people with knee OA who are
least expected to experience symptom relief.
The knee largest as
well as one of the most complicated join in the body. It needs to be strong
along with must be flexible enough to support our weight and allow bending and
twisting movements. Gradual onset of knee pain, stiffness and swelling are
typical symptoms of knee osteoarthritis
A study was performed to find out that whether there is any association between change in pain location and clinically-relevant improvements in walking pain severity and physical dysfunction in people suffering from medial tibiofemoral osteoarthritis (OA) and using footwear for self-management.
So analysis of a sub-set including 91 participants was
done, which were taken from both arms of a 6-month randomized controlled trial
of footwear for knee OA. The Photographic Knee Pain Map was self-administered
to produce changes in the number of painful zones (‘unchanged’, ‘increased’,
‘decreased’) and anatomical patterns of pain (‘unchanged’, ‘no longer diffuse’,
‘becoming diffuse’, ‘other pattern changes’). Estimation of improvement on
symptoms was done using minimum clinically important differences (MCIDs) in
pain severity on a numeric rating scale, and function with the Western Ontario
and McMaster Universities Osteoarthritis Index (WOMAC). Fisher's exact tests
was used to find the differences in symptom improvement among the categories of
change and odds ratios (ORs, 95% CI) were calculated (adjusted for treatment
allocation).
The result of study revealed change in location of pain in
74% (n = 67) of participants, and clinically-relevant
improvements in pain and function was observed in 46–50% (n
= 42–45) respectively. Fewer participants ‘becoming diffuse’
reported improved pain (n = 0, 0%) as
compared to the other pattern change categories (P = 0.012).
Participants with ‘no longer diffuse’ (OR (95% CI) = 0.3 (0.1–0.9) or ‘becoming
diffuse’ (OR (95% CI) = 0.0 (0.0–0.4) pain patterns had significantly lower
odds of improved function than those with ‘other pattern changes’.
The study concluded that participants either developing
into, or changing from, diffuse pain patterns were less likely to get
improvement in pain and/or function while self-managing with footwear.
Osteoarthritis and Cartilage
Associations between changes in knee pain location and clinical symptoms in people with medial knee osteoarthritis using footwear for self-management: an exploratory study
K.L. Bennell et al.
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