Constant-Murley Shoulder Score
Enter pain level, activity limitations, range of motion, and shoulder strength to compute the Constant-Murley Score (0–100) with domain breakdown.
Use the Constant-Murley Shoulder Score
Clinical Parameters
A Pain (0–15 pts)
15 = no pain | 0 = severe pain
B Activities of Daily Living (0–20 pts)
C Range of Motion (0–40 pts)
D Abduction Strength (0–25 pts)
Measured with arm abducted to 90° in scapular plane. 1 pt per pound (lb), max 25 pts.
Enter 0–25 lbs. Values above 25 are capped at 25 points.
Result
Constant-Murley Score
—
| Domain | Score | Max |
|---|---|---|
| Pain | — | 15 |
| Activities of Daily Living | — | 20 |
| Range of Motion | — | 40 |
| Strength | — | 25 |
| Total | — | 100 |
For clinical decision support only. Always combine with full clinical assessment and specialist judgment. Age- and sex-adjusted norms are not applied here.
Summary
The Constant-Murley Score (CMS) is a 100-point validated outcome measure for shoulder function. It assesses four domains: pain (15 pts), activities of daily living (ADL, 20 pts), range of motion (40 pts), and shoulder abduction strength (25 pts). Higher scores indicate better function. The CMS is widely used to evaluate outcomes after shoulder surgery, physiotherapy, and injury rehabilitation.
How it works
- Rate the patient's pain level on a 0–15 scale (15 = no pain, 0 = severe pain).
- Score daily activities: work level, recreation/sport level, sleep quality, and positioning of the hand (each sub-item weighted).
- Measure and enter range of motion for forward flexion, lateral elevation, internal rotation, and external rotation.
- Measure shoulder abduction strength using a spring balance or dynamometer; enter the value in pounds (1 pt per lb, up to 25 points).
- The calculator sums all four domains and displays the total CMS out of 100 with a functional grade.
Use cases
- Track shoulder function before and after rotator cuff repair surgery.
- Quantify outcomes following physiotherapy for shoulder impingement or frozen shoulder.
- Document shoulder disability for insurance or medicolegal reporting.
- Compare shoulder function between the injured and contralateral side.
- Screen patients for surgical candidacy based on pre-operative shoulder function.
- Teach clinical assessment skills to physiotherapy and orthopaedic trainees.