The biomechanical function of each pair of facet joints is to guide and limit movement of the spinal motion segment. In the lumbar spine, for example, the zygapophysial joints prevent rotation in the transverse plane, whilst allowing sagittal rotation (flexion and extension) and a small amount of frontal rotation (lateral bending). These functions can be disrupted by degeneration, dislocation, fracture, instability from trauma, osteoarthritis, and surgery.
Association of generalized joint hypermobility with a history of glenohumeral joint instability.(original research)(Report)
May 01, 2010; Individuals with generalized joint hypermobility may be at increased risk of sport-related injuries. (1,2) Generalized joint...