The Effects of Joint Effusion on Proprioception

Study Overview
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Brief Summary
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The purpose of this study is to assess the effects of joint effusion on proprioceptive status in patients with knee osteoarthritis (OA).

Detailed Description
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Proprioception is a sensory modality that provides feedback on the internal status of the body and enables us to perceive joint position and motion. Osteoarthritis (OA), also called degenerative joint disease, is a major musculoskeletal condition characterized by loss of articular cartilage that leads to pain and loss of function. The most commonly affected joint is the knee, and OA may result in changes that affect not only intracapsular tissues, but also periarticular tissues, such as ligaments, capsules, tendons, and muscles. Many studies have examined the proprioceptive status of knee OA, and subjects with knee OA are known to have impaired proprioception compared with age-matched controls. Joint effusion is a common symptom associated with chronic degenerative joint condition, but the effects of effusion on knee joint proprioception have not been investigated in detail. A volume of 20 mL of normal saline was injected into the knee joint cavity of subjects in the experimental group under ultrasonographic guidance. Proprioceptive acuity was assessed by active repositioning of the lower limb using an electrogoniometer to measure knee joint position sense (JPS) under both non-weight-bearing and weight-bearing conditions twice, with a 20-min rest interval.

Official Title
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Clinical Trial for the Effects of Joint Effusion on Proprioception

Conditions
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Osteoarthritis

Intervention / Treatment
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* Procedure: Normal saline


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Or at least two of criteria 2-6 established by the American College of Rheumatology (ACR): Kellgren and Lawrence (K/L) grade ≥II morning stiffness <30 min in duration crepitus on movement of the knee joint bony tenderness at the knee joint margins palpable or visible bony enlargement no palpable warmth. Exclusion Criteria: the presence of knee joint effusion determined by ultrasonography a history of knee injury or surgery a history of knee injection within 3 months a history of inflammatory arthritis taking anticoagulants balance or gait disturbance diabetes mellitus.

Ages Eligible for Study
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Minimum Age: 50 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Infusion<br>20cc saline infusion into the knee joint | Procedure: Normal saline<br>* 20 cc normal saline injection into the knee joint<br>|
| No Intervention: No infusion<br> | Procedure: Normal saline<br>* 20 cc normal saline injection into the knee joint<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Proprioceptive acuity in Knee Joint. Proprioceptive acuity (difference between the knee angles at the target and reproduced positions) was assessed by active repositioning of the lower limb after injection or no injection. |  | within one hour after intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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effusion, osteoarthritis, knee