Stryker ReUnion RSA Teardown

Stryker’s ReUnion RSA is a Class II reverse shoulder arthroplasty system for patients with rotator cuff tear arthropathy, where the native joint has lost the soft-tissue stabilisers a conventional total shoulder replacement depends on.

The objective was not to document one implant but to build a repeatable benchmarking framework — disease state → biomechanics → requirements → regulatory → manufacturing → outcomes — that can be run in reverse when designing future devices.

PendingThis section has not been written up yet.

PendingThis section has not been written up yet.

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• Biomechanics: the geometric inversion that lets the deltoid compensate for a non-functional rotator cuff.
• Materials system: Ti-6Al-4V, Tritanium porous metal, and X3 highly crosslinked UHMWPE.
• Regulatory: the FDA 510(k) clearance pathway for the device.
• Requirements: Quality Function Deployment targets.
• Manufacturing and Design for Environment decisions that support them.

PendingThis section has not been written up yet.

PendingThis section has not been written up yet.

PendingSources, scope boundaries, and what a teardown from public information can and cannot establish are not yet written up here.