Simultaneous bilateral total knee replacement: a prospective study of 150 patients.

Purpose: To evaluate the safety of simultaneous bilateral total knee replacement (TKR).

Methods: 124 women and 26 men (mean age, 66 years) underwent simultaneous bilateral TKR for tricompartmental osteoarthritis using a posteriorstabilised, high-flexion implant. All patients underwent dobutamine stress echocardiography for detection of any silent cardiac comorbidity by a cardiologist.