Common Foot Posture Assessed in Non-Weight-Bearing Subtalar Joint Neutral Flashcards
Forefoot Varus - Posture
MT heads are inverted relative to the rearfoot.
Varus of 1 to 8 is considered normal.
Forefoot Valgus - Posture
MT heads are everted relative to the rearfoot.
A plantar-flexed first ray will also give the appearance.
Rearfoot Varus - Posture
Calcaneus is inverted relative to the long axis of the bisected lower leg and may be related to a varus alignment of the tibia or a calcaneus that doesn’t completely derotate during development.
Rearfoot Valgus - Posture
Calcaneus is everted relative to the long axis of the tibia and can be associated with a valgus tibial alignment.
Rarely observed.
Forefoot Varus - Compensation
During static weight bearing, abducts and everts resulting in a more planus foot.
During gait, excessive and prolonged pronation as the 1st MT has farther to travel before contacting the ground.
Forefoot Valgus - Compensation
During static weight bearing, midfoot supinates as the 1st MT contact the ground.
During gait, 1st MT strikes the ground prematurely, resulting in early supination and reducing the shock-absorbing capacity of the limb.
Rearfoot Varus - Compensation
With sufficient STJ mobility, will rapidly and excessively pronate during early stages of gait.
Rearfoot Valgus - Compensation
Becomes hypermobile resulting in increased pronation.