DEFINITIONS Flashcards
- defined by a joint cavity
- all bones of a structural joint share the same synovial fluid
Structural Joints / Anatomic Joints
- articulation between the posterior facet of the talus with the posterior facet
of the calcaneus - the joint capsule attaches near the articular margins of both facets, is lined
with synovium, and reinforced by several ligaments
Subtalar Joint (STJ)
- articulation of the talus with the navicular, the anterior and middle facets of the talus with the anterior and middle facets of the calcaneus, and the talus with the plantar calcaneonavicular ligament / spring ligament
- all articulations with the head of the talus
Talocalcaneonavicular Joint (TCN joint)
- articulation between the calcaneus and the cuboid
- the joint capsule attaches near the articular margins of both surfaces, is lined with synovium, and reinforced by ligaments
Calcaneocuboid Joint (CC joint)
- articulation of most bones of the midfoot
- the joint capsule is continuous for all surfaces participating in the great tarsal joint, is lined with synovium, and reinforced by many ligaments
Great Tarsal Joint
- articulation between the medial cuneiform and the 1st metatarsal
- capsule attaches at the articular margins and is lined with synovium
First Cuneometatarsal Joint / Medial Tarsometatarsal Joint
- articulations between the cuboid and the 4th metatarsal, the cuboid and the 5th metatarsal, and the 4th and 5th metatarsal bases
- synovial planar (gliding) articulations
Lateral Tarsometatarsal Joint / Cuboideometatarsals 4 and 5 Joint
- anatomic joints that work together as a unit
- the clinical classification
Functional Joints
- these are the strongest of the foot ligaments
- all ligaments are extrasynovial
Interosseous Ligaments
- from the lateral surface of the navicular to the medial surface of the cuboid
- present when this joint is fibrous, not present or partially present when this joint is synovial
Interosseous Cuboideonavicular Ligament
- both strong ligaments to prevent separation of the bones united by each
- support the transverse arch of the foot
Interosseous Intercuneiform Ligaments
- from the non-articular lateral surface of the medial cuneiform to the non-articular medial surface of the intermediate cuneiform
first interosseous intercuneiform ligament
- from the non-articular lateral surface of the intermediate cuneiform to the non-articular medial surface of the lateral cuneiform
second interosseous intercuneiform ligament
- from the non-articular lateral surface of the lateral cuneiform to the
non-articular medial surface of the cuboid (distal placement) - prevents separation of the lateral cuneiform and cuboid bones
Interosseous
Cuneocuboid Ligament
- 3 ligaments that prevent separation of the bones united by each
- each passes from one cuneiform to one metatarsal bone
Interosseous Tarsometatarsal Ligaments
- the strongest of these three
- passes from the (non-articular part of the) lateral surface of the medial cuneiform to the (non-articular) medial surface of the 2nd metatarsal base
Lisfranc’s Ligament / medial interosseous tarsometatarsal ligament / first interosseous tarsometatarsal ligament
- passes from the (non-articular part of the) medial surface of the lateral cuneiform to the (non-articular) lateral aspect of the 2nd metatarsal base
Second interosseous tarsometatarsal ligament / intermediate interosseous tarsometatarsal ligament
- passes from the (non-articular) lateral surface of the lateral cuneiform to the (non-articular) medial aspect of the 4th metatarsal base
lateral interosseous tarsometatarsal ligament / third interosseous tarsometatarsal ligament
- 3 ligaments that prevent separation of the bones united by each
- pass from the groove on the lateral aspect of the base of one metatarsal to the
(non-articular part of the) medial aspect of the base of the adjacent metatarsal - the strongest intermetatarsal ligaments
- none between first and second metatarsal bones
Interosseous Intermetatarsal Ligaments
- from the groove of the 2nd metatarsal base, laterally, to the (non-articular part of the) 3rd metatarsal base, medially
- at the distal extent of the great tarsal joint
first interosseous intermetatarsal ligament