History of knee injury linked with lower KOOS scores

The Importance of Dance, Yoga and Pilates in Pro Athletes’ Cross-Training.This study provides normative reference values for the KOOS in an 18- to 64-year-old metropolitan United States population. Study findings can aid surgeons in counseling patients and in developing expectations after the treatment of injuries.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient-reported outcome measurement instrument, developed to assess the patient’s opinion about their knee and associated problems. The KOOS evaluates both short-term and long-term consequences of knee injury and also consequences of primary osteoarthritis (OA).

Casey Tingle, Healio Orthopedics Today March 16, 2016

Researchers administered the KOOS to 999 patients or accompanying family members seen at an outpatient orthopedic clinic in July 2014 for an orthopedic issue unrelated to their knee. Patients with a self-reported medical history that was negative for knee, ankle or hip surgery and had no current issues of the knee, ankle or hip were eligible for participation, with 402 men and 597 women included in the final study cohort.

Results showed, compared with other subscales, men and women scored lower on the symptoms subscale, with men scoring lower in all age cohorts except the 56-year-old to 64-year-old age group. Researchers found lower median scores for the pain and knee-related quality of life subscales in the 56-year-old to 64-year-old female cohort vs. the 18-year to 55-year female cohort.

The greatest variability for patients of both sexes was found in the symptoms, pain and knee-related quality of life subscales and particularly in the youngest and oldest cohorts, according to results. Researchers noted significantly lower KOOS results in the 3% of patients who reported a history of knee injuries in the past year vs. uninjured participants.

Source Healio Orthopedics Today

Use of the Knee Injury and Osteoarthritis Outcome Score in a Healthy United States Population, Williamson T, Sikka R, Tompkins M, Nelson BJ. Am J Sports Med. 2016 Feb;44(2):440-6. doi: 10.1177/0363546515616812. Epub 2015 Dec 10.

The Knee injury and Osteoarthritis Outcome Score (KOOS): from joint injury to osteoarthritis, Ewa M Roos and L Stefan Lohmander. Health Qual Life Outcomes. 2003; 1: 64. Published online 2003 Nov 3. doi: 10.1186/1477-7525-1-64

Also see
Worse KOOS scores in patients with ACL tears, full-thickness cartilage lesions in Healio Orthopedics Today

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