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Introduction Acetabular component orientation and position are important factors in the short- and long-term outcomes of total hip arthroplasty (THA). Therefore, it is crucial that the surgeon has accurate and precise control over the
Arts et Métiers Institute of Technology, Université Sorbonne Paris Nord, IBHGC-Institut de Biomécanique Humaine Georges Charpak, HESAM Université, Paris, France
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( 1 ). The goal of the surgery is to achieve a concentric, well-covered, and stable hip. Pelvic osteotomies may either correct the overall orientation of the acetabulum (reorientation osteotomy), electively correct a dysplastic area by an
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Introduction Appropriate component orientation is important for success following hip arthroplasty ( 1 ). The significance of appropriate acetabular component (cup) orientation was further highlighted with the use of the third-generation metal
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Luxembourg Institute of Research in Orthopaedics, Sports Medicine and Science (LIROMS), Luxembourg, Luxembourg
Department of Orthopaedic Surgery, Centre Hospitalier Luxembourg-Clinique d’Eich, Luxembourg, Luxembourg
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Orthopaedic Surgery Service, University Hospital of Geneva, Geneva, Switzerland
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are attributable to femoral, intra-articular, or combined deformities. Paley et al. ( 6 ) suggested that deformity analysis is crucial to identify its location and prevent non-physiological joint line orientation after correction. Although PTO is
South West London Elective Orthopaedic Centre, UK
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secondary to aberrant standing functional acetabular orientation, under-coverage of the femoral head anteriorly and posterior impingement. 17 , 18 With THA, implants would therefore be at a higher risk of failure, notably through complications related
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accuracy in prediction of implant size, restoration of hip biomechanics and component orientation; (2) highlighted benefits and barriers; (3) proposed new areas of research. Methods Search strategy and study design This systematic review was
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equilibrium influences the 3D orientation of the acetabulum and the functional ROM of the hips ( 5 ). The spine, the pelvis, and the hip move in coordination with one another during activities of everyday living, and the acetabulum changes its 3D orientation
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polyethylene liner wear. This concept has generated good long-term implant survivorship. 19 Fig. 2 Comparison between KA THA and conventional THA. Since 1978, the prosthetic cup orientation has been recommended to be at 40° inclination and 20
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, anterior pelvic plane tilt; SFP, sacro-femoral pubic angle; AV, acetabulum version. PI is also the sum of two other angles (PI = SS + PT): sacral inclination (sacral slope [SS]: the orientation of the sacral plate in relation to a horizontal line
Surgery Department, Hôpital Maisonneuve-Rosemont, Montreal University, Montreal, Québec, Canada
Clinique orthopédique Duval, 1487 Boul des Laurentides, Laval
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Bordeaux Arthroplasty Research Institute - Clinique du Sport Bordeaux-Mérignac 04-06 rue Georges Negrevergne, Mérignac, France
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Department of Orthopedic Surgery and Traumatology, Kantonsspital Baselland, Bruderholz, Switzerland
Clinical Research Group Michael T. Hirschmann, Regenerative Medicine & Biomechanics, University of Basel, Basel, Switzerland
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Department of Surgery, University of California, San Francisco, California, USA
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’s center of rotation or the knee’s kinematic axes Leg length equality Balanced joint lever arm Native joint surface orientation Native soft tissue tension Native kinematics and kinetics during activities Appropriate
