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MAS Work Shop (July 2002) Sunny Hills Orthopedic Services, Inc. in Fullerton, CA, recently hosted the inaugural “Marlo Anatomical Socket” (MAS) workshop offered by Marlo Ortiz, of Guadalajara, Mexico. Marlo shared the details of the unique ischial containment (IC) design that he developed for trans-femoral prosthetic sockets. His design not only allows improved comfort, range of motion and gait, it also affords a stunning cosmetic result. Marlo Ortiz is the past president of the Mexican Orthotic and Prosthetic Association for 1980-82 as well as 1994-96. He has an education in Engineering and Prosthetics and Orthotics, was a guest professor at UCLA Prosthetics program and has spoken in over seven countries. He most recently presented in Germany and at meetings in Phoenix and Orlando. Immediately following the workshop, he made a presentation at the annual convention of the Amputee Coalition of America, in Anaheim. Twelve prosthetists from six states joined the Sunny Hills prosthetics staff for the four- day, “hands-on” course in which Marlo mentored The MAS socket incorporates an unconventional brim design where ischial-ramal containment is achieved with a proximal extension in the posterior-medial corner of the socket. The placement and contour of this extension is critical to successful containment and is achieved by identifying the ischium and the angle of the ramus in the casting procedure. This superior containment allows the socket to be aligned in an increased adduction angle for greater prosthetic control and improved gait. The anterior and posterior trims are lowered to the gluteal fold level to allow unrestricted hip flexion and improved sitting comfort. The proximal lateral brim, along with the unencumbered gluteal musculature results a remarkably imperceptible cosmetic transition. This design actually allows easier access to verify that true ischial containment has been achieved. The adducted socket alignment puts the hip abductors on stretch, and the socket itself comfortably accommodates the anatomy without artificial contouring. The open sharing of information and camaraderie was enjoyed by the attendees and everyone appreciated exposure to this advancement in trans-femoral socket design.
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each participant as they casted, modified, and performed dynamic diagnostic socket fittings.
