Total shoulder arthroplasty outcomes after noncorrective, concentric reaming of B2 glenoids

Authors:

Peter J. Millett, MD, MSc, W. Jeffrey Grantham, MD, Travis J. Dekker, MD, Lucca Lacheta, MD, Marilee P. Horan, MPH, Brandon T. Goldenberg, MD, and Bryant P. Elrick, MSc

Abstract:

Background

Total shoulder arthroplasty (TSA) is an effective procedure for the treatment of glenohumeral osteoarthritis (GHOA) delivering reliable pain relief and improved shoulder function. Abnormal glenoid morphologies are common, and biconcave glenoids are enigmas that have been associated with poor clinical outcomes and implant survivorship.

Purpose

To assess the clinical outcome scores of patients who underwent noncorrective, concentric reaming for TSA with biconcave glenoids (B2). We hypothesized that patients with B2 glenoids who underwent TSA with glenoid implantation using noncorrective, concentric reaming would have significant improvements in clinical outcome scores and high implant survivorship.

Methods

All patients who underwent anatomic TSA for GHOA with B2 glenoids, performed by a single surgeon, between July 2006 and December 2015 with minimum 2-year follow-up were reviewed. Walch classification was obtained from preoperative imaging (magnetic resonance imaging or computed tomography). Clinical outcome scores were prospectively collected and included American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) score, Single Assessment Numerical Evaluation (SANE) score, Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) score, 12-Item Short Form Health Survey physical component summary (PCS), and patient satisfaction. Clinical failures (revision TSA surgery or conversion to reverse TSA) and complications were reported. Paired t test and bivariate correlations level of significance was set at P = .05. Survivorship analysis with implant failure as an endpoint was done using Kaplan-Meier survival curves.

Results

51 TSA in 49 patients (9 females, 40 males) with primary GHOA with B2 glenoids were performed with a mean age of 64 (range 36-81 years) at the time of surgery. The mean retroversion was 19.1° (range 5.4°-38°), and posterior decentering was 42.0% (range 19.4%-78.5%). At final evaluation, 45/51 anatomic TSAs (88% follow-up) with a mean follow-up of 4.9 years (range 2.0-10.4 years) were assessed. All clinical outcome scores improved significantly pre- to postoperatively: ASES, 52.5 to 79.6 (P < .001); SANE, 52.4 to 74.7 (P < .001); QuickDASH, 39.2 to 19.1 (P = .001); and PCS, 40.9 to 48.9 (P = .001). Median postoperative satisfaction was 9 (range 1-10). There were 2 failures and 4 that required another surgery —subscapularis repair, lysis of adhesions, irrigation and débridement, and one to explore the status of the subscapularis for persistent pain. The implant survivorship rate was 95% at a mean follow-up of 4.9 years.

Conclusion

Anatomic total shoulder replacement with minimally noncorrective, concentric reaming in patients with B2 glenoids had significant improvement in clinical outcome scores, high patient satisfaction, and high survivorship in this cohort.

For the complete study: Total shoulder arthroplasty outcomes after noncorrective, concentric reaming of B2 glenoids

Peter Millett, MD

Average rating:

39 reviews

Alexandra Thompson

Mar 23, 2024

by Alexandra Thompson on Peter Millett, MD

110%

Dr. Millett and his team did a SLAP tear repair and bicep tenodesis on my left shoulder. I use my arms as an artist, and love to swim in the ocean, surf, paddle, and telemark ski. So regaining full use of my shoulder and keeping my bicep attached was very important to me. Now, over two years later, my shoulder has the equivalent range of motion as my other arm and as before the injury, and no pain. After the first three months it felt so good and was so strong that - to my horror - I completely forgot my six-month follow-up.

Not only did Dr. Millett and his team make my arm as good as new, but having had the experience of such kindness and expertise throughout the process of surgery and recovery is like an added shoulder superpower.

Thank you Rita, Brooke, Jason, Sarah, Camille, Olivia, Dr. Millett and everyone! And see you soon when my husband comes in for his knee...

Jeff Chandler

Jan 31, 2022

by Jeff Chandler on Peter Millett, MD

Flawless procedure, Easy recovery

Dr. Millet's repaired my knee and tibia, following a botched operation by a different surgeon. That procedure was virtually pain free and I was weight bearing within a few days. That was 18 years ago and the knee is still strong. A few years after the knee incident, Dr Millet repaired my shoulder. My insurance company approved me for 3 months of disability following that surgery. I was off pain medication in 2 days and had 90% range of motion within a week. I withdrew my disability claim and returned to work within two weeks of surgery. I’m not a famous athlete—just a regular guy. Nonetheless, I was treated like an NFL at the Steadman clinic. Most notable was the time for recovery. Other surgeons perform their hour-long task in the OR and don’t involve themselves in the other functions. Peter and his team manages the entire process from diagnosis, anesthesia, nursing care, and therapy. He takes a holistic approach to patient care and doesn’t skip any steps.

Jenn West

Jul 2, 2021

by Jenn West on Peter Millett, MD

Saved My Life

I went to Dr. Millett after 7 knee surgeries (6 on my right and 1 on my left) and had seen 11 different surgeons who all refused to remove femur metal from my right leg. I am highly allergic to metal and the chronic pain was leaving me bedridden for 3.5wks out of a month. He personally wrote me back on my inquiry, listened to my concerns, scheduled my surgery within a week (due to insurance issues) and personally followed up with my recovery. The level of patient care from Dr. Millett and his ENTIRE team is above any care I have ever received in my 20 years of dealing with orthopedic surgeons. There are not enough words to describe the level of care, dedication and professionalism you receive from Dr. Millett and his staff.
My only disappointment is that I did not find him sooner!!!