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articulations of the iliofemoral joint
proximal joint surface of the iliofemoral joint consists of the acetabulum (oriented laterally, inferiorly, anteriorly
distal consists of convex head of the femur
how many degrees of freedom at the iliofemoral joint
3 degrees
flexion, extension
abduction, adduction
medial and lateral rotation
loose packed position of the iliofemoral joint
30 deg flexion, 30 deg abduction, slight lateral rotation
close packed position of the iliofemoral joint
full extension, medial rotation
capsular pattern of the iliofemoral joint
flexion, abduction, medial rotation
articulations of the tibiofemoral joint
proximal joint of the tibiofemoral joint formed by the convex medial and lateral condyles of the distal femur.
distal surface formed by the concave medial and lateral condyles of the proximal tibia
patellofemoral joint articulation
formed by the convex patella and the concave trochlear groove of the femur
patella slides superiorly in knee extension and inferiorly in knee flexion
degrees of freedom at tibiofemoral joint
2 deg
flexion/extension
medial/lateral rotation
loose packed position of tibiofemoral joint
25 deg flexion
close packed position of the tibiofemoral joint
full extension, lateral rotation of the tibia
capsular pattern of tibiofemoral joint
flexion, extension
articulations of distal tibiofibular joint
fibrous union b etween the lateral aspect of the distal tibia and the distal fibula
articulations of the talocrural joint
distal tibia, talus, and tibula, synovial hinge joint
how many degrees of freedom at the talocrural joint
1 degree
dorsiflexion/plantarflexion
loose packed position of the talocrural joint
10 degrees of plantarflexion, midway between maximum inversion/eversion
close packed position of the talocrural joint
max dorsiflexion
capsular pattern of the talocrural joint
plantarflexion, dorsiflexion
subtalar joint articulations
talus and calcaneus
degrees of freedom at the subtalar joint
1 degree of freedom
inversion, eversion
loose packed position of the subtalar joint
midway between extremes of range of movement
close packed position
supinationcap
capsular pattern of the subtalar joint
limitation of varus range of movement
articulation of the midtarsal joint
talocalcaneonavicular joint and the calcaneocuboid joint
which joint in the ankle is triplanar joint
midtarsal joint
how many degrees of freedom are in the midtarsal joint
1 - inversion/eversion
loose packed position of the midtarsal joint
midway between extremes of range of movement
close packed position of the midtarsal joint
supination
capsular pattern of the midtarsal joint
dorsiflexion, plantarflexion, adduction, medial rotation
loose packed position of the spine
midway between flexion and extension
close packed position of the spine
extension
capsular pattern of the spine
lateral flexion rotation are equally limited
extension