Final answer:
The statement "The Univer Apex Arthrex total shoulder arthroplasty system reduced diaphyseal stem length, rectangular stem body and removable trunnion optimize stem removal and therefore revisability" is True (Option A).
Step-by-step explanation:
The statement that the Univer Apex Arthrex total shoulder arthroplasty system reduced diaphyseal stem length, rectangular stem body, and removable trunnion to optimize stem removal and therefore revisability is true.
In the context of joint replacement surgery, such as shoulder arthroplasty, revisions may be necessary when artificial joint components need to be replaced or adjusted.
A reduced diaphyseal stem length can contribute to easier stem removal. Additionally, a rectangular stem body may offer better alignment and fit, while a removable trunnion can facilitate easier revision of the components without the need for a complete overhaul of the prosthesis.
Improvements in prosthesis design support the enhancement of range of motion and stability in ball-and-socket joints.
As described in the question, the glenoid cavity in the shoulder allows for extensive range of motion due to its shallow socket, while the deep socket of the acetabulum restricts movement of the hip joint for stability and weight-bearing.
It’s important for prosthetic designs like the Univer Apex Arthrex system to account for these natural joint characteristics to ensure both functionality and patient comfort after surgery.
Hence, the correct answer is Option A.