We performed a series of 16 anatomical dissections on Caucasian cadaver material to determine the surgical anatomy of the medial femoral circumflex artery (MFCA) and its anastomoses. These confirmed that the femoral head receives its blood supply primarily from the MFCA via a group of posterior superior nutrient arteries and the posterior inferior nutrient artery. In terms of anastomoses that may also contribute to the blood supply, the anastomosis with the inferior gluteal artery, via the piriformis branch, is the most important. These dissections provide a base of knowledge for further radiological studies on the vascularity of the normal femoral head and its vascularity after dislocation of the hip.
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http://dx.doi.org/10.1302/0301-620X.93B11.26993 | DOI Listing |
Int Immunopharmacol
March 2025
Department of Bone and Joint Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. Electronic address:
Background: Glucocorticoid (GC) overuse is the main cause of osteonecrosis of the femoral head (ONFH). The dysfunction of bone marrow mesenchymal stem cells (BMSCs) plays an important role in ONFH pathogenesis. Physiological concentrations of GCs can induce the osteogenic differentiation of BMSCs; however, intervention with high concentrations of GC may lead to changes in aging and autophagy in certain cell types.
View Article and Find Full Text PDFJ Am Acad Orthop Surg
March 2025
From the Department of Orthopaedics, Denver Health Medical Center, University of Colorado School of Medicine, Denver, CO (Ward), and the Department of Orthopaedics, Grady Memorial Hospital, Emory University School of Medicine, Atlanta, GA (Parry).
Introduction: Excessive lag screw sliding after cephalomedullary nail fixation of intertrochanteric fractures can be problematic. Set screws are typically inserted to engage the lag screw and backed off to allow for sliding. The purpose of this study was to determine whether statically locking set screws affected lag screw sliding or cutout.
View Article and Find Full Text PDFArch Orthop Trauma Surg
March 2025
Medical Park Klinik, Bad Wiessee, Germany.
Legg-Calvé-Perthes disease (LCPD), is a rare avascular osteonecrosis of the proximal femur usually occurring in children between 5 and 10 years of age. The cause of ischemia leading to necrosis of the femoral head remains unknown. The goal of surgical treatment for LCPD is to improve the containment of the femoral head to restore the function of the hip joint and prevent further damage to the femoral head leading to premature hip osteoarthritis.
View Article and Find Full Text PDFHip Int
March 2025
Department of Orthopaedics unit 3, Christian Medical College, Vellore, India.
Background: Valgus osteotomy is a femoral head-preserving surgery to treat femoral neck non-union in young, active patients. The traditional approach, however, causes medialisation of the femoral shaft during valgus correction, which alters femoral anatomy and complicates conversion to total hip arthroplasty if head osteosynthesis fails. This study aims to outline a novel surgical technique, medial opening wedge valgus intertrochanteric osteotomy (VITO), and evaluate its clinical and radiographic outcomes, focusing on restoring hip biomechanics and improving union rates.
View Article and Find Full Text PDFJ Endocr Soc
March 2025
Department of Rheumatology, Univ. Lille, CHU Lille, MABlab ULR 4490, F-59000 Lille, France.
Context: Noninvasive measurement of bone marrow adipose tissue using magnetic resonance imaging and proton density fat fraction (PDFF) may enhance clinical fractures prediction in postmenopausal women.
Objective: This study aimed to assess the association between PDFF measurements and clinical fracture incidence.
Methods: A longitudinal study was conducted.
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