v4.1 Fusion X
Indicated for cuff tear arthropathy, pseudoparalysis, massive irreparable cuff tears. Developed by Grammont: medialized & lowered center of rotation. Deltoid substitutes for deficient rotator cuff. Requires intact deltoid and axillary nerve. Complications: scapular notching, instability, acromial stress fracture.
What is the primary indication for reverse shoulder arthroplasty (RSA)?
Who developed the reverse shoulder arthroplasty design?
Which biomechanical advantage does the reverse shoulder arthroplasty provide?
What complication is associated with reverse shoulder arthroplasty related to bone structure?
Which of the following is NOT an indication for reverse shoulder arthroplasty?
What is pseudoparalysis in the context of shoulder pathology?
What is the typical age threshold for performing reverse shoulder arthroplasty?
In reverse shoulder arthroplasty, what is the consequence of inadequate deltoid tensioning?
What design principle is used in the Grammont reverse shoulder arthroplasty to reduce scapular notching?
Which muscle becomes the primary elevator of the arm in the context of reverse shoulder arthroplasty?