Open Accessibility Menu

Hoag Orthopedic Institute Study Highlights Protocol for Same Day Discharge for UKA

  • Posted On:


IRVINE, Calif. – After unicompartmental knee arthroplasty (UKA), also known as partial knee replacement, day of surgery discharges for appropriately selected patients can be both safe, efficient and even increase patient satisfaction according to a recent study published in the November issue of The Journal of Arthroplasty.

Unicompartmental knee arthroplasty procedures involve the removal and replacement of a ‘compartment’ of the knee joint which is damaged, as opposed to total knee arthroplasty which is the replacement of the entire knee joint.

The study, authored by Hoag Orthopedic Institute (HOI) surgeons and clinicians noted that improvements and refinement of the perioperative pathway and techniques over the last decade allowed for successful same day discharge of 160 consecutive patients at HOI.

Dr. Gorab

“We’re pleased to showcase our successes in building a protocol which is best for our patients, and hope that our model will become a gold-standard for care,” said Dr. Robert Gorab, Chief Medical Officer of HOI and a leading author of the study.

The study found that due to improvements in the process before, during and after surgery, patients can actually be discharged sooner and without uncontrolled pain or nausea. Additionally, none of the patients in the study required overnight admission for side effects of the surgery, and results showed high patient satisfaction following discharge.

Study authors included Joseph Gondusky, MD; Leera Choi, BA; Naila Khalaf, MD, PhD; Jay Patel, MD; Steven Barnett, MD; and Robert Gorab, MD.

Dr. Barnett

“These are exciting results considering our aim has always been and always will be to get our patients back to their daily routines as quickly and safely as possible,” said Dr. Steven Barnett, a study co-author and surgeon at HOI.

For more information on the study, visit:


About Hoag Orthopedic Institute
Hoag Orthopedic Institute (HOI) is comprised of a 70-bed hospital located in Irvine, California and two ambulatory surgery centers: Orthopedic Surgery Center of Orange County located in Newport Beach, California and Main Street Surgery Center located in Orange, California. With over 66 orthopedic specialists, who have performed over 10,000 cases annually which include the diagnosis and treatment of knee and hip replacement, spine, sports medicine, orthopedic trauma and extremities care both in an inpatient and outpatient setting. In 2011, HOI was selected to be one of the first of three hospitals selected to participate in an innovative patient registry database that tracks long-term patient outcomes by California Joint Replacement Registry. Recently, named as one of the top orthopedic hospitals in the nation by Becker’s Orthopedic, Spine & Pain Management Review. For more information, please visit