Table III:
Predictors of SPADI Score at 18 months in Patients with Rotator Cuff Tears Having Surgery
| Variable | p-value of variable | p-value for interaction of variable with duration of follow-up* |
|---|---|---|
| Demographics | ||
| Highest level of education | 0.79 | 0.38 |
| Marital status | 0.22 | 0.92 |
| Sex | 0.40 | 0.99 |
| Age | 0.76 | 0.70 |
| Symptoms and Shoulder Strength | ||
| Duration of symptoms | 0.62 | 0.74 |
| Daily shoulder use at work | 0.12 | 0.69 |
| Tear as a result of trauma | 0.74 | 0.34 |
| Dominant shoulder affected | 0.91 | 0.09 |
| External rotation strength ratio | 0.27 | 0.46 |
| Isolated abduction strength ratio | 0.17 | 0.43 |
| Comorbidities and Personal Habits | ||
| Alcohol use | - | 0.02 |
| Fear avoidance and behavior (FABQ) physical activity | - | 0.001 |
| Number of Comorbidities | 0.98 | 0.54 |
| Smoking | 0.73 | 0.70 |
| Mental Health Inventory (MHI-5) | 0.11 | 0.28 |
| Associated Disorders | ||
| Presence of biceps tendon pathology | 0.49 | 0.60 |
| Rotator Cuff Tear Characteristics | ||
| Longitudinal size of tear | 0.14 | 0.67 |
| Transverse size of tear | 0.30 | 0.20 |
| Cross-sectional area of tear | 0.16 | 0.42 |
| Number of torn tendons | 0.68 | 0.14 |
| Fatty infiltration | 0.18 | 0.25 |
| Tendon retraction | 0.38 | 0.92 |
| Muscle atrophy | 0.48 | 0.64 |
| Surgical Characteristics | ||
| Biceps tenodesis/tenotomy | 0.78 | 0.32 |
| Type of repair | 0.91 | 0.74 |
SPADI=Shoulder Pain and Disability Index
Variables significant at p<0.05 are reported in italics
*
If interaction is significant, p-value for variable is not reported