The extended proximal femoral osteotomy is becoming increasingly popular in revision total hip replacement. Our study was done to determine the femoral stem length required for stable fixation of a cementless femoral component after an extended proximal femoral osteotomy. Three lengths of the S-ROM femoral stem were implanted in paired cadaver femora and tested under torsional and axial loads. The results indicate that the standard (160 mm) and long (215 mm) stems do not provide adequate torsional stability after a 160 mm extended proximal femoral osteotomy. The extra-long (255 to 315 mm) stems provided significantly greater stability, suggesting that the extended proximal femoral osteotomy may need to be bypassed by more than 2 cortical diameters, especially when a flexible stem such as the S-ROM is used.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Maternal History of Child Maltreatment Predicts Dysregulated Offspring Stress Response System Functioning.
Child Maltreat
January 2025
Mt. Hope Family Center, University of Rochester, Rochester, NY, USA.
Identifying proximal and multigenerational distal risk mechanisms through which adversity exposure may shape neuroendocrine dysregulation among children is critical to advancing effective preventive interventions for adversity-exposed individuals. Utilizing longitudinal data ( = 247), the current study examined maternal and offspring history of childhood maltreatment (CM) as predictors of offspring cortisol/DHEA ratios, and, in exploratory analyses, extended this longitudinally to offspring depressive symptoms in young adulthood. Youth (ages 8-13 years) initially attended a research camp, then were followed up approximately eight years later (ages 18-22 years).
View Article and Find Full Text PDFTrauma-Associated Pseudo-Hutchinson Sign: An Autobiographical Case Report Emphasizing Conditions, Pseudo-Conditions, and Pseudo-Pseudo-Conditions.
Cureus
December 2024
Dermatology, University of California, Davis Medical Center, Sacramento, USA.
Melanonychia describes black pigmentation of the nail plate that results from either melanocyte activation (such as infections, local inflammatory disorders, local trauma affecting the nail plate, numerous systemic conditions, and medications) or melanocyte hyperplasia (such as benign neoplasms or malignant tumors) or blood (resulting from a trauma-associated subungual hematoma). The black dyschromia may include not only the nail plate but also the proximal nailfold. The Hutchinson sign refers to black discoloration of both the proximal nailfold and adjacent nail plate when the underlying pigmented lesion is a malignant melanoma.
View Article and Find Full Text PDFThe Effectiveness and Safety of Tibial-Sided Osteotomy for Fibula Untethering in Lateral Close-Wedge High Tibial Osteotomy: A Novel Technique with Video Illustration.
Medicina (Kaunas)
January 2025
Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea.
: Despite its advantages, lateral close-wedge high tibial osteotomy (LCWHTO) requires proximal tibiofibular joint detachment (PTFJD) or fibular shaft osteotomy for gap closing. These fibula untethering procedures are technically demanding and not free from the risk of neurovascular injuries. Our novel fibula untethering technique, tibial-sided osteotomy (TSO) near the proximal tibiofibular joint (PTFJ), aims to reduce technical demands and the risk of injury to the peroneal nerve and popliteal neurovascular structures.
View Article and Find Full Text PDF[Proximal iliotibial band tear: a case report in an amateur football player].
Acta Ortop Mex
January 2025
Universidade de Ribeirao Preto Campus Guarujá. Guarujá (SP), Brazil.
The iliotibial band originates from the iliac crest and the hip joint capsule, extending along the entire lateral surface until it inserts onto tuberculum anterolateralis tibiae on the anterolateral tibia. It acts as an agonist of the anterior cruciate ligament. In short, the iliotibial band primarily contributes to the lateral stabilization of the knee joint.
View Article and Find Full Text PDFFibrous dysplasia (FD) is a benign tumor condition in which normal bone is replaced by structurally deficient fibrous lamellar bone. It represents approximately 5-7% of benign bone tumors and occurs in two presentations: monostotic, which is the most common, and polyostotic. The proximal femur is one of the most common locations for benign tumors, including FD.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!