Metal ion levels in maternal and placental blood after metal-on-metal total hip arthroplasty.

There is concern regarding elevated metal ion levels in the blood during pregnancy and the potential fetal effects in women with metal-on-metal (MOM) implants. We obtained maternal and umbilical cord blood samples from 3 patients with a MOM hip arthroplasty and 7 control subjects without any metallic implants. Serum metal ion levels including chromium, cobalt, titanium, and nickel were tested using high-resolution sector-field inductively-coupled plasma-mass spectrometry.

Does BMI affect perioperative complications following total knee and hip arthroplasty?

Background: Orthopedic surgeons are reluctant to perform total knee (TKA) or hip (THA) arthroplasty on patients with high body mass index (BMI). Recent studies are conflicting regarding the risk of obesity on perioperative complications. Our study investigates the effect of BMI on perioperative complications in patients undergoing TKA and THA using a national risk-adjusted database.

Atraumatic acetabular fracture in secondary protrusio acetabuli: a case report.

This case report presents the case of a patient with a history of rheumatoid arthritis and protrusio acetabuli progressing to a medical wall acetabular fracture. A detailed history and physical examination revealed previous radiation treatment of prostate cancer requiring extensive preoperative workup and consultation. Prompt recognition and elective surgical intervention of protrusio acetabuli, prior to fracture, may obviate the need for prolonged hospitalization and delayed surgical intervention.