Purpose
To assess the effectiveness of a specific non-operative physical therapy program in treating atraumatic full thickness rotator cuff tears using a multicenter prospective cohort study design.
Methods
Patients with atraumatic full thickness rotator cuff tears who consented to enroll provided data via questionnaire on demographics, symptom characteristics, co-morbidities, willingness to undergo surgery, and patient related outcome assessments (SF-12, ASES, WORC, SANE score, Shoulder Activity Scale). Physicians recorded physical examination and imaging data. Patients began a physical therapy program developed from a systematic review of the literature and returned for evaluation at 6 and 12 weeks. At those visits patients could chose one of three courses: 1.) Cured (no formal follow up scheduled), 2.) Improved (continue therapy with scheduled reassessment in 6 weeks), or 3.) No better (offered surgery). Patients were contacted by telephone at 1 and 2 years to determine if they had undergone surgery since their last visit. A Wilcoxon signed rank test with continuity correction was used to compare initial, 6 week, and 12 week outcome scores.
Results
The cohort consists of 452 patients. Patient reported outcomes improved significantly at 6 and 12 weeks. Patients elected to undergo surgery less than 25% of the time. Patients who decided to have surgery generally did so between 6 and 12 weeks, and few had surgery between 3 and 24 months.
Conclusion
Non-operative treatment using this physical therapy protocol is effective for treating atraumatic full thickness rotator cuff tears in approximately 75% of patients followed for two years.
Level of evidence
Level IV, Case Series, Treatment Study
No significant differences were found at 12 weeks in this study. At 24 weeks, however, clinically meaningful improvements were found in patients treated with leukocyte-enriched PRP compared with an active control group.
Fellowship-trained, experienced orthopaedic surgeons had good agreement for predicting full-thickness rotator cuff tears and the number of tendons involved and moderate agreement in predicting the involved side of a partial-thickness rotator cuff tear, but poor agreement in predicting the grade of a partial-thickness tear.
Three-dimensional CT was the most reliable imaging modality for predicting glenoid bone loss. Regular CT was the second most reliable and reproducible modality.
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