• 1
    PROM introduction

    Introductory information is provided to the patient about the KOOS PROM they are about to receive and ask to fill out

  • 2
    PROM submission

    The KOOS PROM is presented to the patient along with a message requesting they complete the form and a thank you acknowledgement when they have.

  • 3
    PROM results

    Follow up information is provided to the patient about the results of the KOOS PROM with an option for the care team to request a follow up appointment to review the results.

Pathway details
  • Code: PATH-KOOS
  • Name: Knee injury and Osteoarthritis Outcome Score (KOOS)
  • Author: The PEP Health team
  • Version: 1.00
  • Reviewed: 01/2025
Pathway inclusions
3 pathway stages
X documents
X videos
X forms
X checklists
X questionnaires
X reminders
X messages
X alerts
X weblinks
PROM Scorecard
PROM score calculations
PROM Cut Points
Export of PROM data
Care Team Enabled
Integrations
About

This pathway is designed to enable clinicians and researchers to

  • deliver the KOOS PROM tool to their patients quickly and easily,
  • provide patients with contextual information about the tool,
  • automatically remind patients to submit the KOOS PROM,
  • collect the results of the submitted KOOS PROM,
  • calculate the KOOS PROM Score based on the answers submitted,
  • allocate KOOS PROM Cut Points based on the score calculations,
  • display survey results, Score and Cut Points, and
  • provide an export of deidentified KOOS PROM data for research purposes.
Intended Population

Patients with knee injury and osteoarthritis, ranging from young, active individuals to elderly patients.

Method of use

The KOOS is a self-administered questionnaire typically completed by patients in clinical settings or at home, taking about 10 minutes to fill out without assistance.

PROM details
PROMs included
  • Knee injury and Osteoarthritis Outcome Score (KOOS)
Description

The KOOS is a 42-item self-administered questionnaire assessing five knee-specific outcomes: pain, symptoms, activities of daily living, sport/recreation function, and knee-related quality of life.

Type

Evaluative – assesses short-term and long-term consequences of knee injury and treatment outcomes.

Advantages

More responsive than WOMAC for younger/active patients; includes sport/recreation and quality of life subscales; valid for various knee conditions and interventions.

Disadvantages

May not be as relevant for elderly patients with limited activity levels.

Evidence

Validated for ACL reconstruction, meniscectomy, total knee replacement, and other knee interventions.

Reliability

Test-retest reliability: ICCs > 0.75 for all subscales.

Reference population

Validated in populations aged 16-84 with various knee conditions.

Scoring

The KOOS (Knee injury and Osteoarthritis Outcome Score) uses a standardised scoring system across its five subscales:

  • Pain (9 items)
  • Symptoms (7 items)
  • Function in daily living (ADL) (17 items)
  • Function in Sport and Recreation (Sport/Rec) (5 items)
  • Knee-related Quality of Life (QOL) (4 items)

An aggregate score is not calculated, as it is considered desirable to analyze and interpret the five dimensions separately

Cut Points

Not specified in the provided information.

Terms of Use

Freely available for academic users. Always check with the copyright owner before using the PROM.

Copyright owner

E.M. Roos

References
  • Roos, E. M., Roos, H. P., Lohmander, L. S., Ekdahl, C., & Beynnon, B. D. (1998). Knee Injury and Osteoarthritis Outcome Score (KOOS) – Development of a self-administered outcome measure. Journal of Orthopaedic and Sports Physical Therapy, 28(2), 88-96.
  • Roos EM, Lohmander LS. The Knee injury and Osteoarthritis Outcome Score (KOOS): from joint injury to osteoarthritis. Health Qual Life Outcomes. 2003 Nov 3;1:64. doi: 10.1186/1477-7525-1-64. PMID: 14613558; PMCID: PMC280702.

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