A knee reconstruction changes how you walk, and it could hurt you later

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Photo by Eagle Media Pro on Unsplash
Photo by Eagle Media Pro on Unsplash

People who undergo a knee reconstruction after injuring their anterior cruciate ligament (ACL) are likely to still be walking differently a year after their surgery, according to international researchers who say this could put them at risk of long-term knee problems. The team studied the gait of 58 young people at two, four, six and 12 months after a knee reconstruction, and compared it to the gait of 58 uninjured people. The researchers say while there was improvement over the year, the ACL injury group were still walking differently at the end of the study in ways that could lead to knee joint problems down the track. They say post-surgery rehabilitation should include efforts to help patients regain their normal gait.

Media release

From: Wiley

Does altered gait following ACL surgery contribute to additional knee problems?
For people with an injured anterior cruciate ligament (ACL) in the knee, surgical ACL reconstruction (ACLR) is an effective treatment for restoring joint stability, however, many treated patients still develop additional long-term knee problems, such as knee osteoarthritis. New research published in the Journal of Orthopaedic Research reveals that individuals exhibit an altered gait after ACLR, which can contribute to these problems.

For the study, investigators compared gait biomechanics between the ACLR and uninjured limbs of 58 patients who underwent ACLR and 58 uninjured control individuals.

Although gait biomechanics became more symmetrical in patients with ACLR over the first 12 months post‐ACLR, the ACLR and uninvolved limbs demonstrated persistent aberrant gait biomechanics compared with the uninjured control individuals.

“A persistent aberrant gait pattern following ACLR, like that observed in our study, can induce joint loads that may contribute to further long-term knee joint problems,” said corresponding author Christin Büttner, MS, of the University of North Carolina at Chapel Hill. Implementing early rehabilitative measures to normalize gait following ACLR could help to maintain long-term knee joint health in both the injured and uninjured limb.”

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conference:
Journal of Orthopaedic Research
Research:Paper
Organisation/s: University of North Carolina, USA
Funder: Arthritis Foundation; National Institute of Arthritis and Musculoskeletal and Skin Diseases, Grant/Award Numbers: P30AR072580, T32AR082310
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