JOA Score for Cervical Myelopathy
Quantifies functional impairment in cervical myelopathy to guide surgical decision-making and track postoperative recovery
- Highest activation tier
- Recommended
- How it is scored
- Scored in code; a stated value is compared only from the structured summary or a supplied value
- Scoring type
- point sum
- Care settings
- Inpatient, Outpatient
When it activates
Scribeable activates a calculator from the encounter. The JOA Score for Cervical Myelopathy can activate when the transcript or pasted chart context documents any of these:
- Cervical myelopathy evaluation
- Cervical spondylotic myelopathy
- Cervical spine surgical planning
- Cervical myelopathy recovery assessment
- Cervical cord compression evaluation
A coded diagnosis can also activate it. ICD-10 prefixes carried by the registry: G99.2, M47.1, M50.
Note-type scope: it activates on notes whose subject resolves to neurology, rehab. A note that resolves to another subject does not carry it even when the clinician's specialty matches; a note with no resolvable subject (a generic consultation) falls back to the specialty match.
Inputs the note needs
1 input. Each is resolved from the transcript, the pasted chart context and charted labs; at this calculator’s tier a missing input is never requested, and a missing required input keeps the score out of the draft.
| Input | Type | Unit / options | Guidance |
|---|---|---|---|
| JOA score (0-17). Components: motor function upper extremity (0-4), motor function lower extremity (0-4), sensory (0-2), bladder function (0-3). Normal = 17. | exam |
Scoring
Motor upper extremity: 0=inability to eat with utensils, 1=inability to cut food, 2=can cut with great difficulty, 3=can cut with slight difficulty, 4=normal. Motor lower extremity: 0=unable to walk, 1=needs cane on flat, 2=needs cane on stairs, 3=can walk without cane but slowly, 4=normal. Sensory upper extremity: 0=apparent sensory loss, 1=minimal sensory loss, 2=normal. Bladder: 0=urinary retention, 1=severe dysfunction, 2=mild dysfunction, 3=normal. Total 0-17 (17=normal).
Interpretation
Score >=15: Mild myelopathy — conservative management may be appropriate. Score 12-14: Moderate myelopathy — surgical intervention often recommended. Score <12: Severe myelopathy — surgery generally indicated. Recovery rate = (postop score - preop score) / (17 - preop score) x 100%. Recovery rate >75% = excellent, 50-75% = good, 25-50% = fair, <25% = poor. Early surgery (JOA >12) associated with better recovery rates.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: JOA 1994.
- Japanese Orthopaedic Association. Assessment of cervical myelopathy (JOA Score)JOA Cervical Myelopathy 1994 · 1994 · JOA · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the JOA Score for Cervical Myelopathy (its highest tier is recommended), Scribeable does not ask you for missing inputs. The score is computed in code from whatever inputs resolve from the transcript, the pasted chart context or charted labs; a computed value is written into the draft only when every required input already resolves.
The score is computed in code from the resolved inputs, not recalled by the language model. A stated JOA Score for Cervical Myelopathy value is compared against the computed one when the draft's structured summary carries it; a disagreement found there is flagged to the second drafting pass, which is instructed to correct the score and its interpretation, unless Scribeable has supplied the computed value to that pass, in which case the value the draft writes is checked against the supplied one and a detected difference is shown beside the note for you to adjudicate rather than silently rewritten.
Classified as a risk score: activated strictly, by a documented trigger, never by a permissive reading of the encounter.
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