What is talocalcaneal angle?
What is talocalcaneal angle?
The talocalcaneal angle, also known as the kite angle, refers to the angle between lines drawn down the axis of the talus and calcaneus measured on a weight-bearing DP foot radiograph. This angle varies depending on the position of the calcaneus under the talus and the stiffness of the ligaments of the foot.
What is a normal kite’s angle?
Transverse plane radiographic evaluation The talocalcaneal angle (TCA; also known as Kite’s angle) is defined as the resultant angulation between the longitudinal axis of the talar head and neck and a tangent drawn to the lateral side of the calcaneus, with a normal angle being between 25–40 degrees (Figure 2).
What is hindfoot impingement?
Lateral hindfoot impingement (LHI) is a subtype of ankle impingement syndrome with classic MRI findings. Biomechanically, LHI is the sequela of lateral transfer of weight bearing from the central talar dome to the lateral talus and fibula. In addition to diagnosis, MRI is a useful adjunct to plan surgical treatment.
What is talocalcaneal ligament?
The interosseous talocalcaneal ligament forms the chief bond of union between the talus and calcaneus. It is a portion of the united capsules of the talocalcaneonavicular and the talocalcaneal joints, and consists of two partially united layers of fibers, one belonging to the former and the other to the latter joint.
Where is the Talocalcaneal joint?
hindfoot
The talocalcaneal joint, also called the clinical subtalar joint, is an important and complex joint in the hindfoot that allows articulation of the talus and calcaneus.
How do you find the angle of Gissane?
(B) Gissane angle is measured by the intersection of a line drawn from the highest point of the posterior articular facet to the highest point of the posterior tuberosity and a line from the former to the highest point on the anterior articular facet.
What is talocalcaneal coalition?
Talocalcaneal coalition or peroneal spastic foot or subtalar coalition is an anomalous connection between the talus and the calcaneum that can present with painful and rigid flat-foot in older children and adolescents. The talocalcaneal coalition can be fibrous, cartilaginous, or bony.
How do I fix my hindfoot valgus?
The medial sliding osteotomy of the calcaneus is a simple and effective treatment for hindfoot valgus in pediatric patients with severe hindfoot valgus. It provides excellent correction of the deformity, allows early weight bearing, and preserves subtalar motion.
Where is the talocalcaneal joint?
What is the talocalcaneal joint?
The subtalar joint, also known as the talocalcaneal joint, is a compound joint positioned directly below the ankle joint. 1 It is comprised of the calcaneus (heel bone) and a column-shaped bone called the talus.
What type of joint is the talocalcaneal?
Plane synovial joint
Subtalar joint
| Type | Plane synovial joint; three degrees of freedom |
|---|---|
| Articular surfaces | Posterior calcaneal facet on the posterior part of the inferior surface of the talus; Posterior facet on the superior surface of the calcaneus |
What is the talocalcaneal angle?
The talocalcaneal angle, also known as the kite angle , refers to the angle between lines drawn down the axis of the talus and calcaneus measured on a weight-bearing DP foot radiograph. This angle varies depending on the position of the calcaneus under the talus and the stiffness of the ligaments of the foot.
What is the lateral talocalcaneal angle of hindfoot varus?
The lateral talocalcaneal angle is decreased (< 25°) in this child with hindfoot varus. Hindfoot varus is less commonly seen in adults than in children. When it does occur, it may be seen with pes cavus.
What is the difference between talocalcaneal and first metatarsal?
The talocalcaneal angles evaluate the valgus position of the hindfoot whereas the talar–first metatarsal angle (dorsoplantar view) quantifies the degree of forefoot abduction. Pes cavus is a foot deformity in which the forefoot is fixed in plantar flexion, creating an abnormally high longitudinal arch.
What is the angle of the mid-calcaneal line?
This angle varies depending on the position of the calcaneus under the talus and the stiffness of the ligaments of the foot. The midtalar line should pass through (or just medial to) the base of the 1 st metatarsal and the mid-calcaneal line should pass through the base of the 4 th metatarsal.
