Tibiofibular Flashcards
How many joints exist between the tibia and fibula?
Two joints
What type of joint is found at the proximal ends of the tibia and fibula?
Synovial joint
What type of joint is found at the distal ends of the tibia and fibula?
Fibrous joint
What structure connects the shafts of the tibia and fibula?
Interosseous membrane
What type of joint is the proximal tibiofibular joint?
Plane joint
What type of movement does the proximal tibiofibular joint permit?
Minimal gliding
How much movement does the distal tibiofibular joint permit?
Almost no movement
What is the role of the interosseous membrane between the tibia and fibula?
Adds stability
Label this
What type of joint is the superior/proximal tibiofibular joint?
Synovial joint.
What are the articulating surfaces of the superior/proximal tibiofibular joint?
Circular facet on the head of the fibula and a similar facet on the posterolateral aspect of the lateral tibial condyle.
Which direction does the fibular articular facet face?
Anteriorly, superiorly, and medially.
Which direction does the tibial articular facet face?
Posteriorly, inferiorly, and laterally.
What is the function of the fibrous capsule in the superior/proximal tibiofibular joint?
It attaches to the margins of the facets on both tibia and fibula.
What strengthens the fibrous capsule anteriorly and posteriorly?
Accessory ligaments.
What is the orientation of the fibrous bands of the anterior ligament of the head of the fibula?
Obliquely upwards and medially from the front of the head of the fibula.
What type of movement occurs at the superior/proximal tibiofibular joint?
A small amount of gliding movement.
What is the nerve supply for the superior/proximal tibiofibular joint?
Common peroneal nerve.
What is the role of the synovial membrane in the superior/proximal tibiofibular joint?
It lines the capsule and is attached to the margins of the articular surfaces.
Fill in the blank: The superior/proximal tibiofibular joint is classified as a ______ joint.
[synovial plane/gliding]
What ligaments are associated with the superior/proximal tibiofibular joint?
Anterior ligament, posterior ligament, and interosseous membrane.
What type of joint is the inferior/distal tibiofibular joint?
A fibrous joint (syndesmosis)
It connects the fibula and tibia at their lower ends.
What surfaces are involved in the inferior/distal tibiofibular joint?
Rough, triangular surface on the medial aspect of the fibula and the fibular notch on the tibia
These surfaces facilitate the connection between the two bones.
What is the primary ligament uniting the fibula and tibia in the inferior/distal tibiofibular joint?
Interosseous ligament
This ligament is continuous with the interosseous membrane above.