UT Medical Center Raises Surgical Volume Without Building New Operating Rooms

The University of Tennessee Medical Center expanded surgical case volume by 8% without adding a single operating room. In a field where access is often treated as a construction problem, the Knoxville health system pushed capacity higher by changing how existing rooms were scheduled, released and shared.

The center operates as a Level I trauma hospital and runs 36 operating rooms, a hospital-based surgery center, an endoscopy center and three joint venture ambulatory surgery centers. Together, those sites perform more than 28,000 procedures each year. The operational challenge was not a lack of physical space. It was the difficulty of finding, requesting and releasing time in a way that let more cases move through the system.

Surgeon offices once relied on spreadsheets, phone calls and improvised workarounds to request OR time. Open capacity was difficult to see, and block decisions leaned heavily on anecdote and historical ownership. In that kind of environment, a room can sit idle even while another service line is looking for time that already exists inside the schedule.

Real-Time Access Replaced Fragmented Scheduling Habits

Melanie B. Burgess, vice president of perioperative services and executive director of the Center for Perioperative Medicine, described a redesign centered on visibility. Her team rebuilt OR access around real-time reporting so surgeon offices could see open time as it became available and act on it without waiting for manual coordination.

The change had a simple logic: if unused time is hard to find, it will remain unused. If available time is visible and easy to request, more of it returns to the schedule. At UT Medical Center, that shift supported approximately 9,500 hours of approved open-time requests and a 5% increase in room utilization.

Those numbers matter because OR capacity is one of the most expensive resources in a hospital. Every idle block carries staffing, supply and opportunity costs. Every delayed or missed case can ripple into waiting times, rescheduling headaches and lost physician confidence. The value of the UT model lies in making excess friction visible and then removing it.

A one-sentence reality check: access problems often begin long before a case is delayed in the hallway.

Transparent Utilization Data Changed the Block Conversation

The most important operational shift may have been cultural rather than technical. Transparent utilization reporting moved block-time discussions away from opinion and toward problem-solving. When utilization data is visible to both administrators and surgeons, the argument changes from who “owns” the room to how the room is actually being used.

That matters in hospitals where block time has historically been protected by custom more than by measurement. Historical assignments can persist even when case mix changes, service lines mature or some teams consistently underuse their time. In that setting, open-time reporting gives leaders a common reference point for deciding what should stay, what should move and what should be released.

The approach also gave surgeon offices a more streamlined way to identify, request and secure open time. That may sound like a scheduling convenience, but in perioperative operations it can affect the entire flow of elective surgery. Easier access reduces back-and-forth communication, lowers the chance that open time expires unused and can make it simpler for surgeons to fit cases into already-scheduled room inventory.

Change Management Drove Better Block Release Habits

Better data alone rarely changes behavior. UT Medical Center paired the visibility effort with change management tools meant to improve block release habits and make the new process stick.

Among those tools were release contests and block policy playbooks. The contests created a practical nudge for teams to give back time they could not use, while the playbooks standardized expectations around block release and reduced ambiguity about what should happen when a team could not fill its time. Both tools address a common operational problem: unused time often remains hidden inside routine behavior until leaders create a system that makes release easier than hoarding.

The effect is especially important in high-acuity centers such as a Level I trauma hospital. Trauma readiness must coexist with elective surgical throughput, and that balance depends on disciplined stewardship of every room. A clearer release process helps preserve flexibility without sacrificing the emergency coverage that trauma care demands.

The result at UT Medical Center was not a new tower or a larger footprint. It was more effective use of the rooms already in service.

What This Means for Hospitals Facing OR Backlogs

Hospitals looking to expand surgical volume often assume they need more real estate before they can meaningfully improve access. UT Medical Center’s experience points in a different direction. Real-time availability, shared reporting and a more structured release process can uncover capacity that already exists but is trapped inside fragmented workflows.

For perioperative leaders, the practical question is whether block time is being treated as a fixed entitlement or a managed clinical asset. The UT model suggests that when utilization is visible and open time is easy to claim, the schedule becomes more efficient without requiring immediate capital expansion.

There is also a patient-facing implication. More efficient OR use can shorten the gap between surgical request and surgical date, especially when unused blocks are returned to the pool in time for another case to take them. In systems with high demand, that can make access feel less arbitrary and more dependable for patients and surgeons alike.

The remaining question for any hospital considering a similar overhaul is how well the gains hold once the novelty fades. Sustained improvement depends on whether reporting stays transparent, policy remains enforceable and surgeon engagement remains strong enough to keep open time circulating instead of stagnating. For UT Medical Center, the early result was a measurable rise in utilization and an 8% increase in surgical case volume without adding new ORs. The harder work is preserving that behavior over time.


Reporting by Dr. Aishwarya N., MBBS for Medicine World Foundation, with additional data provided by Becker's Hospital Review.