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A calcaneal fracture is a break of the calcaneus (heel bone). [1] Symptoms may include pain, bruising, trouble walking, and deformity of the heel . [ 1 ] It may be associated with breaks of the hip or back .
Normally the tibia sits vertically above the calcaneus (pes rectus). If the calcaneal axis between these two bones is turned medially the foot is in an everted position (pes valgus), and if it is turned laterally the foot is in an inverted position (pes varus). [5] Calcaneal fracture, also known as lover's fracture and Don Juan fracture
The medial, situated in front of the middle calcaneal facet, is convex, triangular, or semi-oval in shape, and rests on the plantar calcaneonavicular ligament; the lateral, named the anterior calcaneal articular surface, is somewhat flattened, and articulates with the facet on the upper surface of the anterior part of the calcaneus. [8]
The lateral arch is composed of the calcaneus, the cuboid, and the fourth and fifth metatarsals. [1] Two notable features of this arch are its solidity and its slight elevation. Two strong ligaments, the long plantar and the plantar calcaneocuboid, together with the extensor tendons and the short muscles of the little toe, preserve its ...
axial load along the metacarpal causing splitting of the proximal articular surface: Rolando's fracture at Wheeless' Textbook of Orthopaedics online Runner's fracture: Running: stress fracture of distal fibula 3–8 cm above the lateral malleolus: repeated axial stress on fibula: Google books result Marko Pećina, Ivan Bojanić.
Calcaneal pitch is an angle of the calcaneus and the inferior aspect of the foot, with different sources giving different reference points. The first line making up the angle is defined as either: The calcaneal inclination axis, extending from the calcaneus by the inferior portion of the calcaneocuboid joint to the inferior border of the ...
Posterior surface of calcaneus via calcaneal tendon: Tibial nerve (S1, S2) Plantarflexes ankle when knee is extended; raises heel during walking; flexes leg at knee joint Plantaris: Inferior end of lateral supracondylar line of femur; oblique popliteal ligament: Weakly assists gastrocnemius in plantarflexing ankle Soleus
The calcaneus is also modified, forming a heel for the attachment of the Achilles tendon. Neither of these adaptations is found in reptiles, which have a relatively simple structure to both bones. [3] The fifth distal tarsal disappears relatively early in evolution, with the remainder becoming the cuneiform and cuboid bones.