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An accessory navicular bone is an accessory bone of the foot that occasionally develops abnormally in front of the ankle towards the inside of the foot. This bone may be present in approximately 2-21% of the general population and is usually asymptomatic. [1] [2] [3] When it is symptomatic, surgery may be necessary.
X-ray image showing the location of the measurements. X-ray image showing the location of the calcaneal inclination ( calcaneal pitch ). The radiological assessments have exhibited notable enhancements, converging towards the anticipated normal range.
Calcaneal spurs are typically detected by x-ray examination. [2] It is a form of exostosis. When a foot is exposed to constant stress, calcium deposits build up on the bottom of the heel bone. Generally, this has no effect on a person's daily life.
There are three x-ray views in a complete ankle series: anteroposterior (AP), lateral, and oblique (or "mortise view"). The mortise view is an AP x-ray taken with the ankle internally rotated 15-20 degrees since the foot is naturally externally rotated relative to the ankle. [9]
Lateral X-ray of a flat foot with C-sign, which is a bony bridge between the talar dome and sustentaculum tali, in combination with a prominent inferior border of the sustentaculum tali. This represents a talocalcaneal coalition, which is an abnormal connection between the talus and calcaneus and is thought to cause the flat foot deformity in ...
Projectional radiography, also known as conventional radiography, [1] is a form of radiography and medical imaging that produces two-dimensional images by X-ray radiation.The image acquisition is generally performed by radiographers, and the images are often examined by radiologists.
Additionally, the Ottawa ankle rules indicate whether a foot X-ray series is required. It states that it is indicated if: There is any pain in the midfoot zone; and, Any one of the following: Bone tenderness at the base of the fifth metatarsal (for foot injuries), OR; Bone tenderness at the navicular bone (for foot injuries), OR
Examples of periosteal reactive bone in selected specimens of Triceratops. A periosteal reaction can result from a large number of causes, including injury and chronic irritation due to a medical condition such as hypertrophic osteopathy, bone healing in response to fracture, chronic stress injuries, subperiosteal hematomas, osteomyelitis, and cancer of the bone.