Lancaster shoulder surgeon explains how doctors choose between reverse and anatomic replacement

Michael J. Bercik Jr., MD, of Lancaster Shoulder says rotator cuff health is often the key factor in deciding whether a patient needs anatomic or reverse shoulder replacement. He says the choice is individualized and can affect pain relief, function, and recovery.

Why it matters: - Shoulder replacement is not a one-size-fits-all procedure. - The wrong implant design can limit function if the rotator cuff cannot support the joint. - The right choice can improve pain, sleep, daily activity, and return to movement.

What happened: - Michael J. Bercik Jr., MD, of Lancaster Shoulder outlined the differences between anatomic and reverse shoulder replacement. - The explanation focused on how surgeons decide between the two procedures based on the condition of the rotator cuff. - Lancaster Shoulder is based in Lancaster, Pennsylvania, and treats shoulder conditions for patients in Lancaster and surrounding communities.

The details: - Anatomic shoulder replacement, also called traditional total shoulder replacement, uses implants that mimic the shoulder’s natural anatomy. - In an anatomic replacement, a metal ball is placed on the upper arm bone and a smooth plastic socket is fitted to the shoulder blade. - Dr. Bercik said anatomic replacement is designed to recreate the shoulder “the way you were born with it.” - Anatomic replacement generally works best for patients with osteoarthritis and a healthy, functioning rotator cuff. - Reverse shoulder replacement switches the positions of the ball and socket. - In a reverse replacement, the metal ball is fixed to the shoulder blade and a cup-shaped implant is placed on the upper arm bone. - The reverse design allows the deltoid muscle to lift and move the arm instead of the damaged rotator cuff. - Dr. Bercik said reverse replacement was a breakthrough for patients who had few good options before. - Reverse shoulder replacement is commonly recommended for large, irreparable rotator cuff tears, cuff tear arthropathy, certain complex fractures, and failed previous shoulder replacements. - Surgeons also consider reverse replacement for some older patients with advanced arthritis and weak or deficient cuff tissue. - Surgeons evaluate rotator cuff condition with a physical exam and imaging such as X-ray and MRI. - Surgeons also consider bone quality, socket shape, age, activity level, goals, prior surgeries, and prior injuries. - Both procedures are typically done with modern surgical techniques and a multimodal pain-management plan. - Many patients go home the same day or after a short stay. - Patients usually wear a sling for several weeks and then begin guided physical therapy. - Recovery timelines vary by procedure and by patient, but improvement often continues for several months.

Between the lines: - The core medical issue is mechanical: an anatomic implant depends on the rotator cuff, while a reverse implant shifts the workload to the deltoid. - That makes rotator cuff status the main divider between the two operations. - The message also pushes early evaluation, since many patients can try non-surgical care before surgery becomes necessary. - Dr. Bercik framed the decision as matching the implant to the patient, not promoting one procedure over another.

What's next: - Patients with persistent shoulder pain, night pain, or loss of motion should be evaluated before symptoms worsen. - Non-surgical options may include activity changes, anti-inflammatory medication, physical therapy, or injections. - Surgery becomes an option when those treatments no longer provide relief. - Dr. Bercik said early evaluation can give patients more choices and more confidence if surgery is needed.

The bottom line: - Rotator cuff health often determines whether a patient is better suited for anatomic or reverse shoulder replacement.