consisting of villous lipomatous proliferation of the synovium that tends to occur in the knee joint, especially in the suprapatellar pouch (1). The lesion has been observed in other locations, including the glenohumeral joint, subdeltoid bursa, hip, and elbow (2). It may be similar to other proliferations of the synovial membrane, but the characteristic feature is the macroscopic hypertrophic ...

The relative contributions of hip and knee proprioceptors to the origination of extensor spasms were examined in 11 subjects with chronic spinal cord injury (SCI). Ramp and hold extension and combined hip and knee oscillation movements were imposed to the right leg while the ankle was held in a static position by a custom-designed robot. Isometric joint torques of the hip, knee, and ankle and s...

Primary synovial chondromatosis is an uncommon disorder, and involvement of the hip joint is rare. The clinical symptoms are usually non-specific, and a clinical diagnosis of synovial chondromatosis of the hip may be difficult and delayed, especially before the ossifying nodules become evident. Loose bodies in the joint can cause secondary degenerative osteoarthritis of the hip. Currently, the ...

Range of motion of the hip joint is a major contributor to dislocation post total hip replacement. Impingement is often treated as a surrogate for dislocation and occurs--prosthetically--when the neck of the femoral component contacts with the rim of the pelvic acetabular cup. This impingement is caused by movement of the leg during activities of daily living. This article analyses hip joint ra...

Loading/excessive loading of the hip joint has been linked to onset and progression of hip osteoarthritis. Footwear-generated biomechanical manipulation in the frontal plane has been previously shown in a cohort of healthy subjects to cause a specific gait adaption when the foot center of pressure trajectory was shifted medially, which thereby significantly reduced hip joint reaction force. The...

Extensive osseous adaptations of the lumbar spine, pelvis, hip and femur characterize the emergence of the human bipedal gait with its 'double extension' of the lumbar spine and hip. To accommodate lumbar lordosis, the pelvis was 'compacted', becoming wider and shorter, as compared with the non-human apes. The hip joint acquired a much more extended position, which can be seen in a broader evol...

Adhesive wear occurs by the transfer of material from one surface to another when two surfaces articulate against each other under load. The transferred material could break off and act as third-body particles resulting in abrasive wear. Abrasive wear occurs when material is removed from a surface by hard asperities on the counterface and hard particles (third body) trapped between the two cont...

In bringing before you to-night for your consideration a few aspects of the progress of subacute cases of hip-joint' disease, in which the patient is walking about during the course of the disease, I have no wish to discuss the general question of lameness after hip-joint disease. As we are all aware, when the hip-joint becomes diseased, certain changes take place with regard to the relative po...

prosthetic joint infection (pji) is a calamitous complication with high morbidity and substantial cost. the reported incidence is low but it is probably underestimated due to the difficulty in diagnosis. pji has challenged the orthopaedic community for several years and despite all the advances in this field, it is still a real concern with immense impact on patients, and the healthcare system....

In view of the fact that endo-prosthesis heads human hip-joint are operated in extreme conditions, respect load, selection corresponding material and also increase precision quality machining spherical surfaces is rather topical task. submitted work reviewed problems connected with definition influence degree orientation sapphire crystal on its workability during diamond grinding a butt ring el...