High Rate of Undiagnosed Obstructive Sleep Apnea in Patients Undergoing Total Joint Arthroplasty.

This study described the incidence and severity of obstructive sleep apnea (OSA) and determined the sensitivity and specificity of the STOP-BANG Questionnaire in patients undergoing total joint arthroplasty (TJA) at a military academic medical center. All subjects completed the questionnaire and an unattended sleep study preoperatively. Incidence and severity of OSA (apnea-hypopnea index [AHI] ≥ 5) was calculated.