Static Orthosis
An orthotic device with no moving parts that immobilises a body segment in a fixed position to promote healing, prevent deformity, or maintain alignment.
Prior Authorisation
A payer-required approval process that must be completed before an orthotic device is dispensed in order to confirm cove...
Pronation
The inward rolling motion of the foot and ankle complex during weight-bearing, involving eversion of the subtalar joint...
Proximal Tibial Brim
The upper edge of a lower-limb orthosis that conforms to the proximal tibia, defining the superior boundary of the devic...
Reciprocating Gait Orthosis
A bilateral hip–knee–ankle–foot orthosis that uses a cable or linkage system to couple hip flexion on one side with hip...
Rectus Femoris
One of the four quadriceps muscles of the anterior thigh, frequently referenced in orthotic and gait documentation due t...
Rocker Sole
A shoe-sole modification featuring a curved or angled profile that promotes forward propulsion and reduces stress on spe...
Scoliosis
A lateral curvature of the spine, measured by the Cobb angle, which is a primary indication for spinal orthoses such as...
Scottish Rite Orthosis
A hip abduction orthosis used in the management of Legg–Calvé–Perthes disease in children, designed to maintain the femo...
Serial Casting
A rehabilitative technique involving the sequential application of successive casts at increasing joint angles to progre...
Shoe Last
A three-dimensional foot-shaped form over which footwear and foot orthoses are constructed, defining the internal geomet...
Shoe Modification
An alteration made to the external or internal structure of a shoe to correct biomechanical alignment, offload pressure,...
Spasticity
A velocity-dependent increase in tonic stretch reflexes (muscle tone) resulting from upper motor neuron lesions, frequen...
Spinal Cord Injury Level
The most caudal segment of the spinal cord with normal sensory and motor function bilaterally, used to classify injury a...
Spinal Orthosis
Any external device applied to the trunk or spine to limit motion, provide support, or correct spinal alignment.
Stance Phase
The portion of the gait cycle during which the foot is in contact with the ground, accounting for approximately 60% of t...
Static Orthosis
An orthotic device with no moving parts that immobilises a body segment in a fixed position to promote healing, prevent...
Steppage Gait
A gait pattern characterised by exaggerated hip and knee flexion to clear a foot that cannot be actively dorsiflexed due...
Subtalar Neutral
The position of the subtalar joint in which the joint is neither pronated nor supinated, used as the reference position...
Supination
A rotational movement of the forearm or foot in which the palm faces upward or the sole of the foot is turned inward and...
Supramalleolar Orthosis
A low-profile orthosis that extends just above the malleoli to control hindfoot and midfoot alignment without restrictin...
Swing Phase
The portion of the gait cycle during which the foot is not in contact with the ground, comprising approximately 40% of t...
Syme's Amputation
A surgical disarticulation at the ankle joint that retains the heel pad, resulting in a residual limb that may require a...
Thermoplastic
A category of polymer materials used in orthotic fabrication that can be repeatedly softened by heating and hardened by...
TLSO
Acronym for Thoracic–Lumbar–Sacral Orthosis; a spinal brace encompassing the thoracic, lumbar, and sacral regions, used...