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Knowledge of the relationship between the hip and spine is essential in the effort to minimize instability and improve outcomes following total hip arthroplasty (THA). A detailed yet straightforward preoperative imaging workup can provide valuable information on pelvic positioning, which may be helpful for optimum placement of the acetabular cup. For a streamlined preoperative assessment of THA candidates, classification systems with a capacity for providing a more personalized approach to performance of THA have been introduced. Familiarity with these systems and their clinical application is important in the effort to optimize component placement and reduce the risk of instability. Looking ahead, the principles of the hip-spine relationship are being integrated using emerging innovative technologies, promising further streamlining of the evaluation process.
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http://dx.doi.org/10.5371/hp.2024.36.2.77 | DOI Listing |
J Clin Med
August 2025
Spine Center, Koc University Hospital, 34010 Istanbul, Turkey.
Multisegmental lumbar degenerative disease (ms-LDD) is a common condition in older adults, often requiring surgical intervention. While rigid stabilization remains the gold standard, it is associated with complications such as adjacent segment disease (ASD), higher blood loss, and longer recovery times. The Dynesys dynamic stabilization system offers an alternative by preserving motion while stabilizing the spine.
View Article and Find Full Text PDFJ Biomech
October 2025
Department of Spine Surgery, University Hospital Basel, Basel, Switzerland; Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Department of Clinical Research, University of Basel, Basel, Switzerland; Department of Orthopaedics and Traumatology, University Hospital Basel,
While radiographic imaging is the gold standard for assessing spinopelvic alignment, it may not fully reflect symptom severity in patients with lumbar spinal stenosis (LSS) as patients employ dynamic compensatory strategies. This study aimed to develop a method to align static spinopelvic alignment parameters derived from motion capture with radiographic definitions. 27 patients underwent EOS radiography and motion capture analysis in a standardized posture.
View Article and Find Full Text PDFSpine Surg Relat Res
July 2025
Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Introduction: The pathogenesis of dropped head syndrome (DHS) involves factors like fat infiltration of the cervical extensor muscle, cervical degeneration, and sarcopenia, which are typically assessed using conventional imaging. Previous studies have demonstrated cervical and thoracic anterior tilt deterioration during gait in patients with DHS. However, the relationship between dynamic spinal balance and conventional imaging findings has not been investigated.
View Article and Find Full Text PDFJ Arthroplasty
July 2025
Department of Orthopaedics, Xinhua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, People's Republic of China.
Background: We sought to: (1) develop a new method in measuring spino-pelvic tilt (SPT) from antero-posterior pelvic (AP pelvis) radiographs and computed tomography scans, and examine its reliability and validity; (2) use Z-scores to evaluate patients' SPT based on an established asymptomatic norm; and (3) examine whether a compensatory mechanism of anterior pelvic tilt exists for borderline hips, denoted as differences in anterior wall indices both between standing and supine positions, and between borderline hip dysplasia (BHD) patients and asymptomatic norms.
Methods: After the inclusion and exclusion criteria, 24 patients were finally included. Patients who had unilateral or bilateral borderline hips were included.
Arthrosc Sports Med Rehabil
June 2025
American Hip Institute, Chicago, Illinois, U.S.A.
Purpose: To determine the reliability of sagittal radiographic variables across multiple positions and radiographic views and to correlate measures obtained on anteroposterior (AP) radiographs to lateral pelvis imaging.
Methods: Subjects undergoing hip surgery with complete AP and lateral pelvic imaging were included. Images were evaluated by 4 independent reviewers.