Prosthetics Final Exam Review: Questions & Answers: Updated Guide Solution

What happens at the knee if the COG is anterior to the ankle joint? (Ans- Knee extension What are 3 benefits of flexing the socket 5-15°? (AnsMaintains IT on posterior brim (quadrilateral socket) Increases weight bearing on posterior wall (more tolerant) Helps generate extension more easily (puts glutes on stretch) What are 3 benefits of adducting the socket about 10°? (AnsPlaces foot under pelvis for normal BOS Increases weight bearing on lateral wall (more tolerant) Helps Generate abduction more easily (glutes on stretch) Why is an inset socket better than an outset socket for TF prosthesis? (AnsBetter glute med activation Outset leads to trunk lean and excessively wide BOSWhat are 3 amputee causes of foot rotation at heel strike? (AnsWeak hip IR/ER and poor pelvic control Insufficient socks allowing rotation Short/fleshy limb What are 3 prosthetic causes of foot rotation at heel strike? (AnsHeel cushion too hard Excessive toe out/in alignment Medial brim pressure