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Variations in pelvic tilt between relaxed-seated and flexed-seated positions affect stability assessment in 3D modelling in total hip replacement.
ANZ J Surg
January 2025
St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia.
Background: The spinopelvic axis is becoming recognized as an essential contributor to impingement and instability leading to dislocation. Computer-assisted hip surgery uses standing and relaxed-seated radiographs as a surrogate marker of pelvic tilt in all seated positions. However, the flexed-seated position is a high-risk position for dislocation, and the standing and relaxed-seated radiographs may not reflect this risk.
View Article and Find Full Text PDFEvaluating the Corrected Femoroepiphyseal Acetabular Roof Index in Patients With Borderline Dysplasia Undergoing Periacetabular Osteotomy or Hip Arthroscopy.
Orthop J Sports Med
January 2025
Balgrist University Hospital, Orthopaedic Department, University of Zurich, Zurich, Switzerland.
Background: Identifying hip instability in symptomatic patients with borderline dysplasia of the hip (BDH) is of paramount importance, as it can influence both surgical decision-making and surgical outcomes. The femoroepiphyseal acetabular roof (FEAR) index is strongly affected by the hip adduction/abduction angle during the pelvic radiograph, which has not yet been considered in the recommended threshold values.
Purpose: To compare the corrected FEAR index in symptomatic patients with BDH treated with pelvic periacetabular osteotomy (PAO) or hip arthroscopy.
Surveillance of Dual-Mobility Hip Systems: Damage Mode and Clinical Data Analysis.
J Arthroplasty
January 2025
Oakland University William Beaumont School of Medicine, Rochester, MI; Department of Orthopedic Surgery, Corewell Health William Beaumont University Hospital, Royal Oak, MI. Electronic address:
Background: Hip instability following total hip arthroplasty (THA) is among the most common indications for revision surgery. The implantation of dual-mobility (DM) systems, designed to improve stability, continues to rise, and thus, characterizing in vivo implant damage modes is paramount.
Methods: Under an implant retrieval protocol, 51 DM THA systems were analyzed.
Cup-Cage Reconstruction for Pelvic Discontinuity: Encouraging Long-Term Survival.
J Arthroplasty
January 2025
Department of Orthopaedic Surgery, Division of Lower Limb Reconstruction, University of British Columbia, Vancouver, British Columbia, Canada.
Background: Pelvic discontinuity (PD) poses a difficult challenge in revision total hip arthroplasty (rTHA). There is a paucity of evidence assessing five- to ten-year outcomes of cup cages for PD. This study aimed to review the survivorship and outcomes of cup-cage constructs for PD.
View Article and Find Full Text PDFCement-within-cement technique in revision reverse total shoulder arthroplasty: complications, reoperations, and revision rates at 5-year mean follow-up.
JSES Rev Rep Tech
February 2025
Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
Background: Revision reverse total shoulder arthroplasty (rTSA) of a previously cemented humeral component is challenging. In hip arthroplasty, the cement-within-cement (CwC) technique has been well described as an effective option. However, for shoulder arthroplasty there remains a paucity of data investigating this technique.
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