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Muscle strength is a key predictor of physical function in advanced knee osteoarthritis

The takeaway

Does muscle strength predict how well people function with advanced knee osteoarthritis?

In advanced knee osteoarthritis, muscle strength is among the strongest predictors of physical function, making strengthening a priority even when surgery is on the table.

SupportsRead paper
Primary studyStrong evidence

Key points

  1. Stronger patients walk, climb stairs and stand more easily despite similar joint damage.
  2. Strength is modifiable, so it is a high-value rehab target.
  3. Worth optimising both before and after joint replacement.

Source

doi:10.1016/j.msksp.2025.103339

Read the original paper
Clinically assessing this area? See the knee special tests.

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