Here's what it takes to perform shoulder replacements consistently and safely at outpatient facilities.
J. Gabriel Horneff III
BOLD SHOULDER Numerous advances are contributing to the steady movement of total shoulder procedures to outpatient facilities.
Shoulder replacements, which once required hospital stays as a matter of course, have been consistently shifting to same-day outpatient settings. As a result, more patients have access to these surgeries. Anthony Romeo, MD, a Chicago-based shoulder and elbow specialist, estimates that surgeons now perform close to 200,000 shoulder replacements annually, many of the same-day variety due to advances in surgical technique and anesthesia care.
Driven by an aging population combined with a growing number of fellowship-trained shoulder reconstruction specialists entering the field, total shoulders present a tantalizing opportunity for ASCs. Dr. Romeo suggests that interested facilities focus on four key considerations before taking the plunge.
Patient selection. Develop a standardized approach to identifying appropriate candidates for shoulder replacement surgery. Dr. Romeo suggests prioritizing patients who have a BMI under 40 and are without uncontrolled comorbidities, particularly diabetes with an AIC of greater than 8 and underlying cardiac issues. Age isn't typically a limiting factor, however.
"When cases were moved out of hospitals to outpatient facilities, surgeons realized patients in their 70s were healthy enough to tolerate the procedure and did quite well," says Dr. Romeo, who performs most of his shoulder replacements on patients in their mid-60s, bolstered by evolving surgical techniques that are extending the expected lifespan of implants beyond 10 years.
New techniques. Implants are increasingly placed with a cementless press-fit technique, and they are designed to better match the joint's natural function. As a result, patients can move their shoulder sooner and more effectively after surgery. "Closely matching the implant to the patient's natural anatomy improves the joint's stability and significantly increases its longevity," says Dr. Romeo.
More surgeons also now attempt to place the implant's humeral head in the same center of rotation as the patient's natural shoulder. "The glenoid has a six times increased chance of survival over 10 years when the humeral head is properly sized and positioned," says Dr. Romeo.
Additionally, reverse shoulder replacements, which rely on the deltoid muscle rather than the rotator cuff to power and position the arm, are emerging as a viable surgical option in outpatient shoulders. "Surgeons who perform reverse replacements on a routine basis can complete them in about an hour," says Dr. Romeo. "Impressively, long-term outcomes studies show 80% or more of the implants are functioning 20 years after they're placed. Implant longevity has been a focus of hip- and knee-replacement specialists for years. Now we're seeing it become more of an emphasis in shoulders."
Pre-op planning. Computer navigation technology allows surgeons to map out bone cuts and select the size of the implant based on the patient's pre-op CT scans and specific joint anatomy, says Dr. Romeo. In the OR, the navigation platform guides surgeons to place the implant in an alignment that matches the pre-op plan, particularly in terms of placing the glenoid component of the implant on the scapula with more accuracy. Placement of the humeral component remains more challenging, however, but Dr. Romeo believes robotic assistance can help with this portion of the procedure.
Advanced anesthesia care. Perioperative pain management has improved dramatically in shoulder replacements. Dr. Romeo recommends investing in the tools and equipment anesthesia providers need to place regional blocks under ultrasound guidance in pre-op to help maintain surgical efficiencies. Patients thus enter the OR with the surgical site completely numb and require only low-flow general anesthesia, leading to them emerging more quickly and recovering sooner. Dr. Romeo's patients do not receive opioids in recovery, although they are provided a two-day opioid script at discharge to manage breakthrough pain and a prescription for a less potent narcotic for five to seven days post-op. Many of Dr. Romeo's patients return most of the pills at their one-week follow-up appointment.
Dr. Romeo believes that when surgeons approach shoulder replacements with an informed plan and a talented, committed team of providers, the procedures can be performed efficiently, effectively and safely at outpatient facilities.