Exam 2) Prosthetics Exam 2: Questions & Answers: Updated A+ Guide Solution

why is it important to know landmarks that are pressure tolerant vs. pressure intolerant = (Ans- redness in areas that are intolerant to pressure indicative of poor prosthesis fitting major weight bearing area w/ quadrilateral socket = (Ans- ischial tuberosity For quadrilateral socket, height of the posterior wall is at the level of (Ans- ischial tuberosity Disadvantages of quad socket (Ans- •Little or no ML control of pelvis •Un-stabilized femur in socket •Undue concentration of weight bearing on IT •Narrow AP with bony and soft tissue impingement during sitting Advantages of Ischial containment socket (Ans- Greater comfortIncreased stabilization and control due to bony lock of pelvis Improved sitting comfort due to larger AP dimension More room between legs due to narrow ML creates a bony lock between the pelvic and greater trochanter (Ans- ischial containment Reference point for support of MAS socket (Ans- ischial-ramus complex Patient with back pain = (Ans- MAS socket could help