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The body of the talus comprises most of the volume of the talus bone (ankle bone). It presents with five surfaces; a superior, inferior, medial, lateral and a posterior: [8] The superior surface of the body presents, behind, a smooth trochlear surface, the trochlea, for articulation with the tibia. The trochlea is broader in front than behind ...
Most commonly, trochleae bear the articular surface of saddle and other joints: Trochlea of humerus (part of the elbow hinge joint with the ulna) Trochlea of femur (forming the knee hinge joint with the patella) The trochlea tali in the superior surface of the body of talus (part of the ankle hinge joint with the tibia) Trochlear process of the ...
This is because, in a neutral or maximally dorsiflexed position of the foot, the trochlear surface of the talus may reduce maximal postoperative dorsiflexion due to rigidity after screw fixation. [9] [12] Assessing the severity of syndesmotic lesions can be performed with fluoroscopic screening. [13]
The trochlea articulated with the trochlear notch and coronoid. The elbow is a hinge joint with a rotatory component where the trochlea forms the convex, proximal surface which articulates with the concave, distal surface on the ulna, the trochlear notch. While the trochlea together with its associated fossae almost covers a 360° angle, the ...
Trochleitis is inflammation of the superior oblique tendon trochlea apparatus characterized by localized swelling, tenderness, and severe pain. This condition is an uncommon but treatable cause of periorbital pain. The trochlea is a ring-like apparatus of cartilage through which passes the tendon of the superior oblique muscle.
[3] [4] [5] The joint surface of all bones in the ankle is covered with articular cartilage. The distances between the bones in the ankle are as follows: [13] Talus - medial malleolus : 1.70 ± 0.13 mm; Talus - tibial plafond: 2.04 ± 0.29 mm; Talus - lateral malleolus: 2.13 ± 0.20 mm; Decreased distances indicate osteoarthritis.
The talus bone or ankle bone is connected superiorly to the two bones of the lower leg, the tibia and fibula, to form the ankle joint or talocrural joint; inferiorly, at the subtalar joint, to the calcaneus or heel bone. Together, the talus and calcaneus form the hindfoot. [1]
The humeroulnar joint (ulnohumeral or trochlear joint [1]) is part of the elbow-joint. It is composed of two bones, the humerus and ulna, and is the junction between the trochlear notch of ulna and the trochlea of humerus. [1] It is classified as a simple hinge-joint, which allows for movements of flexion, extension and circumduction.