Scapulo-Humeral Angle and Scapular Notching in Shoulder Surgery
Author Information
Author(s): Minoli Carlo, Travi Martino, Compagnoni Riccardo, Radaelli Simone, Menon Alessandra, Marcolli Daniele, Tassi Alberto, Randelli Pietro S.
Primary Institution: U.O.C Week Surgery, ASST Centro Specialistico Ortopedico Traumatologico Gaetano Pini-CTO, Milan, Italy
Hypothesis
A reduced scapulo-humeral angle contributes to the development of scapular notching in reverse total shoulder arthroplasty.
Conclusion
A smaller preoperative scapulo-humeral angle is associated with a higher incidence and severity of scapular notching after surgery.
Supporting Evidence
- 12 out of 42 patients developed scapular notching, indicating a 28.5% incidence.
- A significant correlation was found between preoperative scapulo-humeral angle and the incidence of scapular notching.
- All patients with a scapulo-humeral angle below 50° developed scapular notching.
Takeaway
If the angle between the shoulder blade and the arm is too small, it can cause problems after shoulder surgery, like a condition called scapular notching.
Methodology
A retrospective analysis of patients who underwent reverse total shoulder arthroplasty, measuring the scapulo-humeral angle and assessing scapular notching.
Limitations
The study is retrospective and has a relatively small sample size due to strict inclusion criteria.
Participant Demographics
Patients aged 18 years or older undergoing RTSA due to rotator cuff arthropathy.
Statistical Information
P-Value
p<0.0001
Confidence Interval
95% C.I. -0.8250 to -0.4963
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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