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Spondylolisthesis is when one spinal vertebra slips out of place compared to another. [1] While some medical dictionaries define spondylolisthesis specifically as the forward or anterior displacement of a vertebra over the vertebra inferior to it (or the sacrum), [2] [3] it is often defined in medical textbooks as displacement in any direction.
A joint space of between 1.5 and 4 mm is regarded as normal. [15] Ankle osteoarthritis. For the ankle, the Kellgren–Lawrence scale, as described for the hip, has been recommended. [16] The distances between the bones in the ankle are normally as follows: [17] Talus - medial malleolus: 1.70 ± 0.13 mm; Talus - tibial plafond: 2.04 ± 0.29 mm
Sports involving repetitive or forceful hyperextension of the spine, especially when combined with rotation are the main mechanism of injury for spondylolysis. The stress fracture of the pars interarticularis occurs on the side opposite to activity. For instance, for a right-handed player, the fracture occurs on the left side of the vertebrae. [5]
This page was last edited on 10 April 2007, at 01:56 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Shoulder arthritis is a clinical condition in which the joint that connects the ball of the arm bone (humeral head) to the shoulder blade socket (glenoid) has damaged or worn out cartilage. Normally the ends of the bone are covered with hyaline articular cartilage , a surface so smooth that the friction at the joint is less than that of an ice ...
CT scan in the sagittal plane of two Schmorl's nodes. The small Schmorl's node at the inferior endplate of the L3 vertebral body (arrow) has typical features, being broad-based at the endplate, with well-defined contours and thin marginal sclerosis. A large and less typical Schmorl's node (arrowhead) is observed at the superior endplate of L4. [3]
In human anatomy, the five vertebrae are between the rib cage and the pelvis.They are the largest segments of the vertebral column and are characterized by the absence of the foramen transversarium within the transverse process (since it is only found in the cervical region) and by the absence of facets on the sides of the body (as found only in the thoracic region).
Subacromial bursitis is a condition caused by inflammation of the bursa that separates the superior surface of the supraspinatus tendon (one of the four tendons of the rotator cuff) from the overlying coraco-acromial ligament, acromion, and coracoid (the acromial arch) and from the deep surface of the deltoid muscle. [1]