Musculoskeletal sprains and strains

Differential diagnosis

Differential Diagnosis table forMusculoskeletal sprains and strains
ConditionDifferentiating signs/symptomsDifferentiating tests
Fracture
  • Can be easily differentiated from grade 1 and 2 sprain and strain, but difficult to differentiate from grade 3 injuries.

  • Usually needs additional tests to differentiate.

  • Radiography in 2 planes usually can identify fracture and dislocations.

Cartilage injury
  • Difficult to differentiate clinically from joint sprain.

  • MRI often required. Will show intact ligaments as well as the size and extent of the cartilage injury.

Last updated: Oct 25, 2012
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