Patella subluxation assessed on dynamic MRI has previously been shown to be associated with anterior knee pain. In this MRI study of 60 patients we investigated the relationship between subluxation and multiple bony, cartilaginous and soft-tissue factors that might predispose to subluxation using discriminant function analysis. Patella engagement (% of patella cartilage overlapping with trochle...

After stroke, up to 81% of individuals develop shoulder subluxation, a condition frequently associated with poor upper limb function. Recently, electrical stimulation has been applied to shoulder muscles to treat shoulder subluxation. The purpose of this meta-analysis was to examine the efficacy of surface electrical stimulation for the prevention or reduction of shoulder subluxation after stro...

Demonstrable anterior subluxation of the femoral head after a total hip arthroplasty is a rare complication and is usually transient. Both a case of recurrent subluxation and a case of chronic subluxation are described in this paper, each one presenting with unexpected femoral head eccentricity in the acetabulum on radiograph. We show how this unusual complication can be successfully identified...

The aim of this study was to describe the influence of pelvis rotation on the projected radiographic position of the femoral head in relationship to the acetabulum in the standard ventrodorsal hip extended view, i.e. Norberg angle, pelvic thickness at the level of the cranial effective acetabular rim, femoral head subluxation index, femoral head subluxation category and femoral head-acetabular ...

A 60-year-old Tunisian male, treated for an axial spondyloarthritis with indometacin (100 mg per day), consulted for a new 4-month history of inflammatory neck pain. The neurologic exam was normal. Radiographs of his neck showed a vertical atlantoaxial subluxation. MRI did not find any neurological suffering. Atlantoaxial subluxation is an uncommon and potentially fatal complication of spondylo...

A longitudinal tear of the peroneal tendon is thought to be the result of repetitive peroneal subluxation. However, this report documents two cases of longitudinal split of the peroneus brevis tendon that had no peroneal tendon subluxation. Primary suture was performed. Subluxation of the peroneal tendons was not identified surgically in either case.

Basic science and clinical models of the vertebral subluxation are reviewed. Neurobiological mechanisms associated with these models are described. Models reviewed include the subluxation complex model, subluxation degeneration, nerve compression, dysafferentation, the neurodystrophic model and segmental facilitation. Clinical models, including the segmental, postural, and tonal approaches are ...

All patients were acute, multi-segment cervical spinal cord compression injury secondary to subaxial cervical spine fracture. These patients underwent emergency posterior cervical pedicle screw-rod/plate instrumentation combined with unilateral open-door laminoplasty. Well-placed pedicle screws and good cervical canal dilation were achieved in all patients, as assessed by radiography. Patients ...