Probability of Undiagnosed Obstructive Sleep Apnea Does Not Correlate With Adverse Pulmonary Events nor Length of Stay in Hip and Knee Arthroplasty Using Intrathecal Opioid

In patients receiving intrathecal morphine as part of a multimodal pain regimen undergoing hip or knee arthroplasty, neither risk of adverse pulmonary events nor length of stay appeared to correlate with preoperative risk of undiagnosed OSA.