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Hip joint capsular ligaments serve a fundamental role in balancing functional mobility and joint stability. ➤ During arthroplasty surgery, a femoral head implant that is nearly equivalent to the native head size with an optimal neck-length offset can optimize capsular tension and decrease dislocation risk where an intact posterior hip capsule plays a critical role in maintaining hip stability.➤ It is not fully understood what the role of capsular tightness is in patients who have cam femoroacetabular impingement and if partial capsular release could be beneficial and/or therapeutic.➤ To preserve joint function and stability, it is important to minimize capsulotomy size and avoid disrupting the zona orbicularis, preserve the femoral head size and neck length, and only repair when or as necessary without altering capsular tensions.➤ The zona orbicularis resists joint distraction (during neutral positions), and its aperture mechanism stabilizes the hip from adverse edge-loading (during extreme hip flexion-extension).➤ Hip joint capsular ligaments (iliofemoral, ischiofemoral, and pubofemoral) play a predominant role in functional mobility and joint stability.
Complete anatomy of hip joint license#
This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. On the Disclosure of Potential Conflicts of Interest forms, which are provided with the online version of the article, one or more of the authors checked “yes” to indicate that the author had a relevant financial relationship in the biomedical arena outside the submitted work ( ). Investigation performed at the Imperial College London, London, United Kingdom, and the Division of Orthopaedic Surgery, University of Ottawa, Ottawa, Ontario, Canadaĭisclosure: The authors indicated grant support from the Engineering and Physical Sciences Research Council (EPSRC) (EP/K027549/1 and EP/N006267/1) and the Wellcome Trust (088844/Z/09/Z), during the conduct of the study. These structures can be at risk for injury, secondary to injury to the hip joint, thus compromising the blood and nerve supply to the lower leg.1MSk Lab, Department of Surgery and Cancer, Imperial College London, London, United KingdomĢDepartment of Mechanical Engineering, Imperial College London, London, United KingdomģDivision of Orthopaedic Surgery, University of Ottawa, Ottawa, Ontario, CanadaĮmail address for P.E.
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Various connective tissue bands, such as, ligaments and tendons, add more stability and reinforce the hip joint in the body.Also, the articular cartilage helps as a shock absorber and helps to prevent the bones from rubbing against each other resulting in injury. The smooth and soft articular cartilage lining the acetabulum and covering the head of femur helps with easy sliding of the bones against each other and allows an easy range of motion.The hollow of the acetabulum is also lined by the same soft, smooth articular cartilage. The head of femur is covered by articular cartilage and has a soft, smooth, and rubbery consistency.The synovium has fluid called synovial fluid, which lubricates the joint and helps with the smooth rolling of bones in the joint on one another during movement.This joint capsule is a watertight sac surrounding the hip, formed by the strong ligaments of the hip joint. The hip joint is enclosed in or surrounded by a joint capsule, which is known as a synovium.The round femoral head is attached to the rest of the femur bone through a piece of connecting bone called neck of femur.The ball and socket arrangement of hip joint offers stability and good range of motion to the hip joint.The head of femur sits in the hollow acetabulum forming the hip joint. The socket is a hollow on the side of the pelvis called acetabulum. The hip joint is a ball and socket joint, in which the ball of the joint is formed by the round head of femur. The hip joint is formed by the thigh bone (femur) and the hip bone (pelvis).Patient/caregiver was instructed upon anatomy of hip joint as follows: