Lower limb proprioception deficits persist following knee replacement surgery despite improvements in knee extension strength.

Summary of "Lower limb proprioception deficits persist following knee replacement surgery despite improvements in knee extension strength."

Knee pain and disability can persist following knee replacement surgery which may place patients at increased risk of falls. This study investigated the falls risk and the occurrence of falls of people with knee osteoarthritis (OA) before and at 12 months following knee replacement surgery.
Thirty-five patients with knee OA were tested prior to undergoing knee replacement surgery and at 12 months following surgery using the short form Physiological Profile Assessment, which incorporates tests of vision, lower limb proprioception, knee extension strength, reaction time and postural sway. Physical activity, number of falls, fear of falling, pain, disability and health-related quality of life were also assessed.
No significant differences were found between the number of falls pre- and post-surgery (n.s.), with 48.5 and 40% reporting at least one fall in the 12 months before and following the surgery, respectively. Improvements in knee strength, reaction time and fear of falling were evident following surgery, with no improvement in lower limb proprioception. Self-reported pain, function and stiffness were significantly improved, but health-related quality of life deteriorated following the surgery.
The number of falls experienced following knee replacement surgery remained relatively high, which may be attributed to the persistence of impaired lower limb proprioception. Although knee replacement surgery improves function and alleviates pain, people who undergo this procedure may need to engage in rehabilitation following the surgery to reduce the risk of falling. LEVEL OF
Therapeutic study investigating the result of treatment on patient outcomes, Level IV.


Musculoskeletal Research Centre, Faculty of Health Sciences, La Trobe University, Bundoora, VIC, 3086, Australia,

Journal Details

This article was published in the following journal.

Name: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
ISSN: 1433-7347


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Medical and Biotech [MESH] Definitions

Replacement of the knee joint.

Replacement for a knee joint.

The region of the lower limb in animals, extending from the gluteal region to the FOOT, and including the BUTTOCKS; HIP; and LEG.

Sensory functions that transduce stimuli received by proprioceptive receptors in joints, tendons, muscles, and the INNER EAR into neural impulses to be transmitted to the CENTRAL NERVOUS SYSTEM. Proprioception provides sense of stationary positions and movements of one's body parts, and is important in maintaining KINESTHESIA and POSTURAL BALANCE.

The inferior part of the lower extremity between the KNEE and the ANKLE.

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