joints of lower extremities Flashcards
AF joint ROM
Flexion 120
Extension 30
Abduction 45
Adduction 30
Medial rotation 35 (limited by ishofemoral lig)
Lateral rotation 45 (limited by pubofemoral and iliofemoral ligaments0
Acetabulofemoral joint classification
Structure: synovial
subtype ball and socket
Multiaxial
Function: diarthrotic
AF joint resting, closed pack and capsular pattern
Resting: 30 flexion, 30 abduction and slight lateral rotation
Closed pack: full extension, abduction and medial rotation
Capsular pattern: internal rotation and abduction > flexion and extension> external rotation
AF joint articular surfaces
Femoral head (convex)
Acetabulum (concave)
Strong
AF joint ligaments (6)
- Ligamentum capitis femoris
- Iliofemoral ligament
- Pubofemoral ligament
- Ishiofemoral ligament
- Transverse acetabular ligament
- Zona Orbicularis
Strong because of zona orbicularis (circular fibers of the articular capsule)
AF joint bursae (2)
iliopectineal and trochanteric
Acetabular labrum
AF joint mob
Distraction
Long-axis traction/inferior glide -increase abduction
Posterior glide - increase flexion /medial rotation
Anterior glide - increase extension/lateral rotation
Postero-lateral glide of femur on pelvis -increase medial rotation
Lateral glide - increase adduction/medial rotation
Tibiofemoral joint classification
Structure: synovial, hinge, uniaxial
Function: diarthrotic
Tibiofemoral joint ROM
Flexion 130
Extension up to 10 (hyperextension is called genu recurvatum)
Rotation: +/- 10
Tibiofemoral joint resting position, closed pack, capsular pattern
Resting: 25 of knee flexion
Closed-pack position: full extension with lateral rotation
Capsular pattern: flexion > extension
Articular surfaces of Tibiofemoral joint
Femoral condyles (convex) Tibial condyles (concave) with menisci in between
Tibiofemoral joint ligaments (7)
- Tibial (medial) collateral ligament
- Fibular (lateral) collateral ligament
- Popliteal ligament (Oblique, arcuate)
- Cruciate ligaments
- Anterior for extension
- Posterior for flexion - Coronary ligament
Tibiofemoral joint bursae and additional structures
suprapatellar and semimembranosus bursae
Medial and lateral (more circular in shape) menisci
Joint mobs of Tibiofemoral joint
Distraction
Posterior glide - increase flexion 2 techniques
Anterior glide - increase extension - 3 techniques
medial glide - increase flex/ext
Lateral glide - increase flex/ext
Medial gap - increase flex/ext and to treat genu varum
Lateral gap - increase flex/ext and to treat genu valgum
Patellofemoral joint classification
Structure: synovial, planar nonaxial
Function: diarthrotic
Patellofemoral ROM
Superior/inferior glide (s-shaped)
Patellofemoral joint resting position, closed pack position, capsular pattern
25-40 of flexion
Closed pack position full flexion
Capsular pattern : flexion>extension
Patellofemoral joint articular surfaces
Patellar surface of femur (concave)
Medial/lateral surfaces of patella (convex)
Patellofemoral joint ligaments (2)
Patellar ligament
Patellar retinaculam
Patellofemoral joint mob
Superior glide Inferior glide - to increase flexion Medial glide Lateral glide care taken because this motion may be hypermobile Medial/lateral tilts
Proximal tibiofibular joint classification and ROM
structure: synovial, planar, nonaxial
Function: diarthrotic
ROM: slight gliding
Proximal Tibiofibular joint resting, closed-pack, capsular pattern
0 of plantar flexion
full dorsiflexion
Capsular pattern: none
Proximal tibiofibular joint articular surfaces
Facet on the lateral condyle of the tibia (convex)
Facet on the head of the fibula (concave)
Proximal tibiofibular joint ligaments (2)
Anterior ligament of the head of the fibula
Posterior ligament of the head of the fibula
Capsular strength : moderate reinforced by strong ligaments
Proximal tibiofibular joint mob
Posterior glide (caution - possible Hypermobility, can help correct positional fault) Anterior glide (as with previous mob)
distal tibiofibular joint classification and range of motion
Structure: syndesmosis, non axial
Function: amphiathrosis
ROM: slight gliding
Articular surface of Distal tibiofibular joint
Post-lat aspect of distal tibia (concave)
Ant-med aspect of distal fibula (convex)
Resting, closed pack, capsular pattern of restriction of distal tibiofibular
resting: not described
closed pack: not described
capsular pattern n/a
Capsular strength of distal tibiofibular
moderate, reinforced by strong ligament (Interosseus membrane)
Ligaments around tibiofibular
- Ant. Tibiofibular ligament
- post. Tibiofibular ligament
- inferior transverse ligament
- interosseous membrane
Joint mob of distal tibiofibular
posterior glide - positional fault/general ROM
anterior glide - positional fault/general ROM
Superior glide - increased dorsiflexion
Inferior glide - general ROM
Tarocrural joint classification
Structure: synovial, hinge, uniaxial
Function: diarthrotic
Tarocrural joint ROM
Dorsiflexion 20 degree
Plantar flexion: 50 degree
Resting, closed pack, capsular pattern of restriction of Talocrural joint
Resting position: plantar flexion 10 degree
Closed pack position: full dorsiflexion
Capsular pattern of restriction: plantarflexion slightly > dorsiflexion (plantar flexion is slightly more limited than Dorsiflexion)
Articular surfaces of talocrural
Talus: trochlea (convex)
Tibia: Malleolar and inferior articular surfaces (concave)
Fibula: Malleolar articular surface (concave)
Capsular strength of Talocrural
weak
Ligaments of Talocrural
Lateral collateral ligs (3)
posterior talofibular lig
Calcaneofibular lig
Anterior talofibular lig (most frequently sprained ligament)
Medial (Deltoid) Collateral lig (4) posterior tibiotalar part Tibiocalcaneal part Tibionavicular part anterior tibiotalar part
Joint mobs of Tatocrural joint
Distraction Posterior glide (increasing dorsiflexion) Anterior glide (increasing plantar flexion)
Subtalar (Talocalcaneal)joint classification
Structure: synovial, planar, non axial
Function diarthrotic
Range of motion of Subtalar
inversion 5 degree
eversion 5 degree
Resting position, closed pack, capsular pattern of restriction of subtalar
Resting position 10 degree plantarflexion with neutral inversion/eversion
closed pack position: full inversion
capsular pattern of restriction: inversion>eversion, which is relatively free (there is a limitation in inversion)
articular surfaces of subtalar
anterior, middle and posterior articular facets of talus and calcaneus
posterior part: talus with calcaneus
anterior part: talus with navicular (inversion/eversion)
capsular strength: weak
Subtalar ligaments
medial talocalcaneal lig lateral talocalcaneal lig posteior talocalcaneal lig interosseous talocalcaneal lig (tibiocalcaneal and calcaneofibular)
joint mob of subtalar
Distraction
medial glide
lateral glide
medial gap (increasing subtalar eversion)
lateral gap (increasing subtalar inversion)
Foot is comprised of 4 sets of joints
Midtarsal joints
intermetatarsal joints
Metatarsophalangeal joints
Interphalangeal joints
the midtarsal joint is composed of the talonavicular and calcaneocuboid joint
Talocalcanealnavicular joint classification and range of motion
stracture: synovial, gliding nonaxial
functional: diarthrotic
ROM: inversion 20 degree
Eversion 10 degree
Resting, closed pack and capsular pattern of restriction of talocalcanealnavicular joint
Resting 10 degree plantar flexion, with neutral supination/pronation
closed pack position: full supination
capsular pattern of restriction: supination> pronation (supination is more limited than pronation)
articular surfaces of talocalcanealnavicular joint
Talus: anterior and middle facets and facet for navicular
Calcaneus: anterior and middle talar facets
Navicular: posterior facet for talus
Ligaments of talocalcaneal navicular joint
dorsal talonavicular lig
dorsal calcaneaonavicular lig
plantar calcaneonavicular lig
Distal intertarsal joints (3)
Cuneonavicular joint
Intercuneiform joint
Cuneocuboid joit
Classification of distal intertarsal joints
structure: synovial planar, nonaxial
Function: diarthrotic
Slight gliding
Tarsometatarsal joint classification, range of motion
Structure: synovial, planar, nonaxial
Function: diarthrotic
Range of Motion: slight flexion/extension, abduction/adduction and rotation at the 1st tarsometatarsal jt. (to facilitate pronation/supination)
Resting, closed pack, capsular pattern of restriction
Resting position: midway between supination and pronation
Closed-pack position full supination
Capsular pattern of restriction: not described
Articular surfaces of tarsometatarsal joint
medial cuneiform to metatarsals 1 and 2
Intermediate cuneiform to 2nd metatarsal
Lateral cuneiform to metatarsals 2,3 and 4
Cuboid to metatarsals 4 and 5
Intermetatarsal joint classification and range of motion
structre: synovial, planar, nonaxial
Function: diarthrotic
Range of motion slight gliding
articular surfaces of intermetatarsal joint
adjacent surfaces of the lateral four metatarsals