MyKneeScore

Advanced scores · Arthroplasty

KOOS for Joint Replacement (KOOS-JR)

Short-form version of KOOS developed specifically for total knee arthroplasty patients using Item Response Theory (IRT) methodology. Optimal for registry use.

  • 7 questions
  • 2-3 min
  • Score 0 to 100, higher is better
  • Well Validated
All scores

About the KOOS-JR

Who it is for

Patients undergoing or post total knee arthroplasty. Ideal for high-volume registry and clinical use.

What it measures

Seven items from KOOS measuring stiffness, pain, and functional limitations most relevant to TKA patients. Provides a single score.

Sections

  • Function

Reading your score

0 = extreme problems, 100 = no problems. IRT-based interval scoring.

Important. These questionnaires are provided for education and self-tracking. A score is not a diagnosis and does not replace advice from a doctor or physiotherapist. Seek urgent care for a knee that is hot, red and swollen, follows a significant injury, or will not bear weight.