Long-term impact of acute knee injury with hemarthrosis: Osteoarthritis incidence and patient-reported outcomes in a large consecutive cohort over 12 years.

ABSTRACT:

Objective

To estimate the 12-year risk of radiographic and/or symptomatic knee osteoarthritis following different MRI-confirmed soft-tissue knee injuries.

Design

Prospective cohort study including 814 (70 ​%) of 1129 consecutive patients after acute knee trauma with hemarthrosis in a single hospital. Injuries were classified by sub-acute knee MRI. Follow-up comprised bilateral knee radiography and Knee injury and Osteoarthritis Outcome Score. The main outcomes were radiographic and symptomatic knee osteoarthritis. We estimated differences between injury types and injured versus contralateral knees.

Results

The incidence proportion of radiographic knee osteoarthritis was 34 ​% (95 ​% confidence interval 30 to 37) in injured knees and 18 ​% (15, 20) in contralateral kne

SUBMITTER: Isacsson A 

PROVIDER: S-EPMC12685512 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature