Functional state of knee arthritis patients and related factors.
Jiyeon Lee, Jung-Hee Kim, EunJung Chung and 1 others
PMID 28265166WHAT IT FOUND
In 135 hospitalized patients with knee arthritis, physical and mental quality-of-life scores varied with age, pain, BMI, knee function, and range of motion.
Key findings
01Physical component quality-of-life scores were correlated with age, pain, knee scores, function, and range of motion.
02Mental component quality-of-life scores were correlated with age, BMI, knee function scores, function, and range of motion.
03Within the physical component, pain had high correlations with function.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
This was a cross-sectional assessment of correlations, so it cannot show that changing pain, BMI, function, or range of motion will change quality of life. The sample was hospitalized patients with knee osteoarthritis in South Korea, so results may not apply to people in other settings. The authors said the number of subjects was small. Muscle strength was inferred from functional scores rather than measured directly. No treatment was compared, so the study cannot show which intervention improves quality of life.
Declared interests
The authors reported no conflicts of interest.
The easy way to misread this
Do not read these links as proof that exercise, weight loss, or improving range of motion will raise quality of life. This study measured patients without a treatment comparison and only found associations.