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Musculoskeletal system
Published in David A Lisle, Imaging for Students, 2012
Cartilage is not visible on plain radiographs; cartilage disorders are best assessed with MRI. Most cartilages in the body are hyaline or fibrocartilage. Hyaline cartilage covers the articular surfaces in synovial joints. The labrum is a rim of fibrocartilage that surrounds the articular surfaces of the acetabulum and glenoid. Fibrocartilage also forms the articular discs or menisci of the knee and temporomandibular joint, and the triangular fibrocartilage complex of the wrist.
Advances in Adult Dysplasia
Published in K. Mohan Iyer, Hip Joint in Adults: Advances and Developments, 2018
Groin pain is the most common presenting symptom of HD in adult patients, which usually starts insidiously [40]. The pain is usually mechanical and increases with activity. If the labrum is torn symptoms like clicking or locking can appear. Up to 77% of patients may present with a Trendelenburg limp, wherein the stance phase pelvis drops to the opposite side. Some patients have an abductor lurch, in which the trunk bends towards the affected side during WB (stance phase).
Functional Anatomy and Biomechanics
Published in Emeric Arus, Biomechanics of Human Motion, 2017
The central portion of the acetabulum is the acetabular fossa which is nonarticular and contains a fatty padding that is filled with synovial fluid. The entire socket is surrounded and deepened into a fibrous and cartilaginous ring, called the acetabulum labrum.
Evolution of different designs and wear studies in total hip prosthesis using finite element analysis: A review
Published in Cogent Engineering, 2022
Chethan K N, Shyamasunder Bhat N, Mohammad Zuber, Satish Shenoy B
When the articular lunate surface is damaged over the years due to age or trauma the joint experiences wear. These wear debris biologically react with the blood cells and the patient may experience severe pain which results in constrained joint movement. The hip joint is surrounded by muscles as well as ligaments and its stability depends on the deep insertion of the femoral head into the acetabulum. A ring of cartilage surrounds the acetabulum of the joint referred to as the acetabular labrum which tightly holds around the head of the femur. Attachment of the capsule is the acetabulum with labrum and transverse ligament that bridges the acetabular notch inferiorly. The capsule is connected anteriorly to the intertrochanteric line and posteriorly about 15 mm proximal to the intertrochanteric crest on the femoral side. Thus, most of the femoral neck is intracapsular.