Orthotics Questions With Complete Solutions

indications for orthotic prescription - ANSWER1. stabilization/support 2. functional 3. protective 4. corrective what is the purpose of this orthotic? - ANSWERprotective what is the purpose of a swedish knee cage? - ANSWERprevents knee hyperextension purpose of ankle air cast: - ANSWER- prevents inversion & eversion of the ankle - allows pts to use muscles for PF/DF purpose of this hip orthotic: - ANSWERto prevent recurrent hip subluxations what is the function of this hand orthotic? - ANSWER- support - protective - functional for a pt w/ neurological injury, why would you choose an orthotic that is directly at the shoulder (like in the picture) rather than a sling? - ANSWERThis orthotic is less restrictive of the forearm, elbow, and hand, therefore it is more functional for the patient w/ a neurological injury. what is the purpose of an orthotic that stimulates the peroneal nerve? - ANSWERstimulation of the peroneal nerve causes a withdrawal reflex - causing the ankle to go into DF when the nerve is stimulated biomechanics behind orthotics - ANSWERin someone who needs an orthotic, their plum line is not matching up and throwing their CoG off balance, the purpose of the orthotic is to provide counterforce to realign their CoG back to center. why should we order an AFO over a KAFO when trying to correct a biomechanical issue at the knee? - ANSWER1. the knee can be controlled simply by controlling the ankle 2. KAFO is a lot harder to don than an AFO 3. KAFO is typically more expensive affect of solid AFO aligned w/ 5 degrees PF: - ANSWERcreates a knee extension moment (knee will not buckle) - GRF lies anterior to the knee joint axis a