Japanese Orthopaedic Association Score (JOA) Assessment
The JOA Score assesses cervical myelopathy severity through motor and sensory checks. Doctors use this tool to track recovery and guide spinal treatment decisions.

Japanese Orthopaedic Association Score (JOA)
Used to assess cervical myelopathy, the Japanese Orthopaedic Association Score (JOA) evaluates motor and sensory function in the extremities. This 17-point scale also checks bladder control, helping clinicians quantify disability levels. It's a standard tool for tracking functional status before and after surgery.
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Disease
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What is Japanese Orthopaedic Association Score (JOA)
The Japanese Orthopaedic Association Score (JOA) is a trusted tool for checking cervical myelopathy severity. It helps doctors track spinal cord health. This scale looks closely at how well a patient can move and feel things. It focuses on motor skills in the arms and legs plus sensory issues and bladder control. The assessment splits into specific sections. It rates motor function in fingers and legs while also checking sensation in the trunk and limbs. The total score goes up to 17 points, and a lower number means the condition is actually much worse. Doctors use this mainly before and after surgery to see if treatment worked. It is handy in clinics and gives a clear picture of recovery. By spotting changes in daily tasks like using chopsticks or walking, it helps medical teams plan the best care for stronger long-term patient outcomes.
The Japanese Orthopaedic Association Score can be scored using one main approach focusing on function. It assesses cervical myelopathy severity across three key areas: motor function, sensory function and bladder control. You simply tally points from each section to get a total between 0 and 17. A score of 17 means you are fully functional, while lower numbers point to severe deficits. Clinicians often calculate a recovery rate percentage to track how well a patient bounces back after surgery, comparing pre and post op results against the max score.
Advantages
Measures treatment effectiveness through standardised tools.
Develops personalised strategies based on assessment data.
Strengthens evidence through systematic measurement approaches.
Related Instruments
Screens for neuropathic pain components.
Predicts long-term disability risk in musculoskeletal pain.
Assesses symptoms and function in lumbar spinal stenosis.
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