Inguinal hernia for asymptomatic patients. A direct inguinal hernia is less common (~25–30% of inguinal hernias) and usually occurs in men over 40 years of age. Men have an 8 times higher incidence of inguinal hernia than women. Inguinal hernia An inguinal hernia is a protrusion of abdominal-cavity contents through the inguinal canal. Symptoms are present in about 66% of affected people. This may include pain or discomfort especially with coughing, exercise, or bowel movements. Often it gets worse throughout the day and improves when lying down. A bulging area may occur that becomes larger when bearing down. Inguinal hernias occur more
Femoral neck targeting component occurs, early implant failure can result. There are many methods surgeons use to calculate the true centre of the femoral neck. Today the methods broadly fall under two categories: The navigational systems were created to be an accurate means for surgeons to implant components with as much accuracy as possible. Studies have shown that this is largely true, but navigational systems are a very different means of femoral neck targeting, and require a steep learning curve. Below is a comparative analysis of both types of navigational targeting against traditional targeting techniques. A computer-assisted device to calculate the true centre