Sagittal alignment in patients with flexion contracture of the hip before and after total hip arthroplasty
Article dans une revue avec comité de lecture
Introduction In hip osteoarthritis, hip flexion contracture can severely alter the patient’s alignment, and, therefore, affect the patient’s quality of life (QOL). Hip contracture is not well-studied, partly because of the difficulties of its diagnosis. The aim of this study was to propose a quantitative definition of hip flexion contracture, and to analyse sagittal alignment in these patients compared to non-contracture ones, before and 12 months after total hip arthroplasty (THA). Materials and methods Consecutive patients with hip arthrosis and an indication for THA were included (N = 123). Sagittal full-body radiographs were acquired in free standing position and in extension. QOL questionnaires were administered before and after surgery. Spinopelvic parameters were measured, including the pelvic–femur angle (PFA). Patients with low pelvic incidence (< 45°) were included in the hip contracture group if PFA > 5°, or PFA > -5° when pelvic incidence ≥ 45°. Results 29% of patients were in the hip flexion contracture group, and they showed lower pelvic tilt than the no-contracture group (p < 0.001), larger lumbar lordosis (LL) and smaller PI-LL (p < 0.001), as well as a forward position of the head. 16% of patients still had hip contracture 12-months postop. Contracture patients showed higher QOL scores after surgery. Conclusions The proposed method to diagnose hip contracture group allowed to define a group of patients who showed a specific pattern of sagittal spinopelvic alignment. These patients improved their alignment and quality of life postoperatively, but their hip mobility was not always restored. Diagnosing these patients is a first step toward the development of more specific surgical approaches, aiming to improve their surgical outcome.
Files in this item
Showing items related by title, author, creator and subject.
Article dans une revue avec comité de lectureKIM, Youngwoo; SHIMIZU, Yu; TOKUYASU, Hiroyuki; TAKEMOTO, Mitsuru; VERGARI, Claudio (MDPI AG, 2022-12)Hip arthrosis and total hip arthroplasty (THA) can alter a patient’s balance and spinopelvic mobility. In this study, we hypothesized that lumbar, pelvic, and hip mobility and their inter-relations are affected by THA and ...
Stand-to-Sit Kinematics of the Pelvis Is Not Always as Expected: Hip and Spine Pathologies Can Have an Impact Article dans une revue avec comité de lectureKIM, Youngwoo; VERGARI, Claudio; GIRINON, François; LAZENNEC, Jean-Yves; SKALLI, Wafa (Elsevier, 2019)Introduction; Stand to sit pelvis kinematics is commonly considered as a rotation around the bicoxofemoral axis. However, abnormal kinematics could occur for patients with musculoskeletal disorders affecting the hip-spine ...
Quasi-automatic early detection of progressive idiopathic scoliosis from biplanar radiography: a preliminary validation Article dans une revue avec comité de lectureVERGARI, Claudio; GAJNY, Laurent; COURTOIS, Isabelle; EBERMEYER, Eric; ABELIN-GENEVOIS, Kariman; KIM, Youngwoo; LANGLAIS, Tristan; VIALLE, Raphaël; ASSI, Ayman; GHANEM, Ismat; DUBOUSSET, Jean; SKALLI, Wafa (Springer Verlag, 2019)Purpose To validate the predictive power and reliability of a novel quasi-automatic method to calculate the severity index of adolescent idiopathic scoliosis (AIS). Methods Fifty-five AIS patients were prospectively ...
Total Hip Arthroplasty in Patients With Parkinson Disease: Improved Outcomes With Dual Mobility Implants and Cementless Fixation Article dans une revue avec comité de lectureLAZENNEC, Jean-Yves; KIM, Youngwoo; POUR, Aidin Eslam (Elsevier, 2017)Background: Parkinson disease (PD) results in severe limitation in ambulation caused by abnormality of gait and posture. The rate of complications, including fractures and dislocation after total hip arthroplasty (THA), ...
Article dans une revue avec comité de lectureKIM, Youngwoo; POUR, Aidin Eslam; LAZENNEC, Jean Yves (Springer Science and Business Media LLC, 2019)Background: Postural change after total hip arthroplasty (THA) is still a matter of discussion. Previous studies have mainly concentrated on the pelvic motions. We report the post-operative changes of the global sagittal ...