Research

Guy Guenthner, MD, Adam R. Bowler, BA, Evan A. Glass, BS et al.

Journal of Shoulder and Elbow Surgery

Reverse total shoulder arthroplasty (rTSA) is an effective treatment for postcapsulorrhaphy arthropathy, with similar clinical outcomes to glenohumeral osteoarthritis. The surgical technique of the previous soft tissue procedure does not significantly impact postoperative results.

Michael J. Maxwell, Evan A. Glass, Adam R. Bowler et al.

Journal of Shoulder and Elbow Surgery

The study examined changes in deltoid and rotator cuff muscle lengths in reverse total shoulder arthroplasty for glenohumeral arthritis and rotator cuff tear arthropathy. Different prosthesis configurations showed variations in muscle length, with significant differences observed between surgical indications.

Adam Z. Khan, Evan A. O'Donnell, Catherine J. Fedorka et al.

Journal of Shoulder and Elbow Surgery

The study developed a preoperative risk assessment tool to predict hospital readmissions and postoperative adverse outcomes for total shoulder arthroplasty patients by analyzing Medicare claims data and screening multiple potential predictors.

Richard N. Puzzitiello, Michael A. Moverman, Evan A. Glass et al.

Journal of Shoulder and Elbow Surgery

The study found that clinically significant outcome thresholds vary by shoulder arthroplasty type and preoperative diagnosis. Total shoulder and reverse shoulder arthroplasty for glenohumeral osteoarthritis patients achieve clinical milestones earlier compared to reverse shoulder arthroplasty for rotator cuff arthropathy.

Richard M. Puzzitiello, Evan A. Glass, Adam R. Bowler et al.

Journal of Shoulder and Elbow Surgery

This multicenter study investigated the low success rate of closed reductions in patients experiencing dislocations following reverse shoulder arthroplasty, highlighting potential challenges in managing this postoperative complication.

Kristian Efremov, MD, Evan A. Glass, BS, Daniel P. Swanson, BS et al.

Journal of Shoulder and Elbow Surgery

Reverse shoulder arthroplasty (RSA) is a successful surgical treatment for glenohumeral osteoarthritis in both younger and older patients, with no significant differences in clinical outcomes except for slightly greater postoperative forward elevation in younger patients.

Abdulaziz F. Ahmed, Evan A. Glass, Daniel P. Swanson et al.

Journal of Shoulder and Elbow Surgery

Over 90% of patients undergoing reverse shoulder arthroplasty for glenohumeral osteoarthritis experienced substantial clinical benefit. Factors like higher preoperative ASES scores were associated with better outcomes, while preoperative opioid use and postoperative complications were linked to lower outcomes.

Catherine J. Fedorka, Xiaoran Zhang, Harry H. Liu et al.

Journal of Shoulder and Elbow Surgery

The study found significant racial disparities in total shoulder arthroplasty (TSA) utilization, with White patients having a higher volume and percentage of outpatient procedures compared to Black, Hispanic, and Asian patients.

Teja S. Polisetty, Daniel P. Swanson, Paul-Anthony J. Hart et al.

Journal of Shoulder and Elbow Surgery

In a matched-cohort analysis of patients with severe glenohumeral osteoarthritis and type B2 and B3 glenoids, reverse shoulder arthroplasty and total shoulder arthroplasty showed similar outcomes, with reverse shoulder arthroplasty demonstrating lower postoperative pain scores.

Catherine J. Fedorka, Ana Paula Beck da Silva Etges, Matthew J. Best et al.

Unknown

The study analyzed rotator cuff repair costs using time-driven activity-based costing, revealing significant cost variability between hospitals and identifying potential annual savings through reduced episode duration and standardized suture anchor costs.

Margaret Pennington, MD, Erik J. Stapleton, DO, MS, Evan A. Glass, BS et al.

Seminars in Arthroplasty

Patients with glenohumeral osteoarthritis (GHOA) demonstrated higher rates of return to sports after reverse total shoulder arthroplasty (RTSA) compared to those with rotator cuff disease, with 90.6% of patients returning to sports and 87.5% returning at the same or higher level.

Michael J. Gutman, Eitan M. Kohan, Benjamin A. Hendy et al.

Journal of Shoulder and Elbow Surgery

The study examined functional outcomes of total shoulder arthroplasty with posteriorly augmented glenoid components, finding excellent functional improvement and pain reduction with no significant associations between range of motion and glenoid retroversion or humeral head subluxation.

Michael A. Moverman, MD, Richard N. Puzzitiello, MD, Evan A. Glass, BS et al.

Journal of Bone and Joint Surgery

This study identified risk factors for stress fractures after reverse shoulder arthroplasty, finding that patient characteristics like inflammatory arthritis, massive rotator cuff tear, and osteoporosis significantly increase fracture risk, along with specific implant positioning parameters.

Edward J. Testa, Evan Glass, Andrew Ames et al.

Journal of Shoulder and Elbow Surgery

Reverse total shoulder arthroplasty (RTSA) outcomes vary based on surgical indication, with glenohumeral osteoarthritis showing superior patient-reported and functional results compared to rotator cuff tear arthropathy and massive rotator cuff tears.

Stephen Le Breton, Stephen Sylvia, Sundeep Saini et al.

Journal of Shoulder and Elbow Surgery

This study used the RAND/UCLA method to develop appropriateness criteria for total shoulder arthroplasty, finding that appropriateness varies based on patient age, symptom severity, and imaging classifications.

Randa Elmallah, MD, Daniel Swanson, BS, Kiet Le, PA-C et al.

Journal of Shoulder and Elbow Surgery

This study investigated the impact of glenoid baseplate retroversion on outcomes in reverse shoulder arthroplasty. The researchers found no significant differences in functional outcomes, range of motion, or complications between patients with baseplate retroversion ≤15° and >15°.

Sundeep S. Saini, Robert Pettit, Richard N. Puzzitiello et al.

Journal of the American Academy of Orthopaedic Surgeons

Reverse total shoulder arthroplasty in patients with primary glenohumeral osteoarthritis showed significantly better functional and clinical outcomes compared to patients with rotator cuff tear arthropathy.

Michael A. Moverman, MD, Richard N. Puzzitiello, MD, Nicholas R. Pagani, MD et al.

Journal of Shoulder and Elbow Surgery

The study found that functional somatic syndromes are common in shoulder arthroplasty patients and are associated with lower functional scores, more pain, and higher hospitalization costs.

Ian D. Engler, Paul-Anthony Hart, Daniel P. Swanson et al.

Seminars in Arthroplasty

This study found a higher than expected 41.8% prevalence of stress shielding in stemless total shoulder arthroplasty, particularly in women and patients with lower body mass index, with no significant differences in clinical outcomes at early follow-up.

Eitan M. Kohan, Benjamin A. Hendy, Luke L. Kowal et al.

Journal of Shoulder and Elbow Surgery

The study found that both augmented and standard anatomic total shoulder arthroplasty (aTSA) can provide satisfactory and sustained improvements in patient-reported outcomes for patients with acquired glenoid retroversion due to glenohumeral osteoarthritis.

Michael A. Moverman, Suleiman Y. Sudah, Richard N. Puzzitiello et al.

Journal of Shoulder and Elbow Surgery

A study examining the impact of neighborhood socioeconomic disadvantage on shoulder arthroplasty found that patients from the most disadvantaged neighborhoods had equivalent preoperative and postoperative outcomes and costs compared to less disadvantaged patients.

Jacob M. Kirsch, Richard N. Puzzitiello, Daniel Swanson et al.

Journal of Bone and Joint Surgery

In a propensity score-matched study, total shoulder arthroplasty (TSA) and reverse shoulder arthroplasty (RSA) showed similar short-term patient-reported outcomes for osteoarthritis treatment, with TSA demonstrating better postoperative range of motion.

Richard N. Puzzitiello, Eileen M. Colliton, Daniel P. Swanson et al.

Journal of Shoulder and Elbow Surgery

Patients with limited health literacy experience more severe preoperative symptoms and longer hospital stays after shoulder arthroplasty. This suggests health literacy is an important factor in postoperative care and patient outcomes.

Julianne M. Forlizzi, Richard N. Puzzitiello, Paul-Anthony Hart et al.

Journal of Shoulder and Elbow Surgery

The study identified that a preoperative diagnosis of primary osteoarthritis is the strongest predictor of excellent clinical outcomes after reverse shoulder arthroplasty, while factors like depression, prior shoulder surgery, and opioid use are associated with poor outcomes.

Jacob M. Kirsch, MD, Manan Patel, BA, Brian W. Hill, MD et al.

Orthopedics

A retrospective study examined reverse shoulder arthroplasty outcomes in patients with massive rotator cuff tears without arthritis. The research found that patients with better preoperative function had higher rates of poor postoperative outcomes.

Robert J. Pettit, Sundeep B. Saini, Richard N. Puzzitiello et al.

Journal of Shoulder and Elbow Surgery

This study examined outcomes of reverse total shoulder arthroplasty (RTSA) for glenohumeral arthritis across different glenoid morphologies. The researchers found excellent short-term outcomes regardless of preoperative glenoid deformity.

Michael A. Moverman, Richard N. Puzzitiello, Mariano E. Menendez et al.

Journal of Shoulder and Elbow Surgery

The study found associations between rotator cuff muscle characteristics and glenoid deformity in primary glenohumeral osteoarthritis, revealing that patients with eccentric glenoid wear have larger posterior rotator cuff musculature and higher rates of infraspinatus fatty infiltration.

Mariano E. Menendez, Richard N. Puzzitiello, Michael A. Moverman et al.

Journal of Shoulder and Elbow Surgery

This study found that increased anterior shoulder capsule thickening is associated with greater posterior glenoid wear and humeral head subluxation in primary glenohumeral osteoarthritis. The research suggests a potential link between capsular changes and the progression of shoulder osteoarthritis.

Thema A. Nicholson, Jacob M. Kirsch, Ryan Churchill et al.

Journal of Shoulder and Elbow Surgery

This study investigated the effect of intravenous tranexamic acid (TXA) on pump pressure and visualization during rotator cuff repair. The researchers found no significant improvements in surgical visualization, pump pressure, or early pain scores with TXA use.

Xi M. Zhu, Timothy Leroux, Eyal Ben-David et al.

Journal of Shoulder and Elbow Surgery

This meta-analysis compared tenotomy and tenodesis for long head of biceps pathology, finding comparable clinical outcomes with tenodesis superior in preventing Popeye deformity.

Jacob M. Kirsch, Manan Patel, Akash Singh et al.

Journal of Shoulder and Elbow Surgery

This study examined the use of augmented baseplates in reverse shoulder arthroplasty for patients with glenoid deformity. The research found significant improvements in glenoid retroversion and inclination, along with improved functional outcomes and no baseplate-related complications.

Michael J. Gutman, Christopher D. Joyce, Manan S. Patel et al.

Journal of Shoulder and Elbow Surgery

Surgical repair of traumatic rotator cuff tears results in significant functional improvements, with the best outcomes achieved when surgery is performed within 3 weeks of injury. Functional outcomes decline for repairs performed more than 4 months after injury.

Arjun M. Singh, Jacob M. Kirsch, Manan S. Patel et al.

Journal of Shoulder and Elbow Surgery

Perioperative acetaminophen significantly decreased opioid consumption and improved overall pain control after primary arthroscopic rotator cuff repair. The study demonstrated that acetaminophen can be an important component of multimodal analgesia in shoulder surgery.

Jacob M. Kirsch, MD, Michael Gutman, BA, Manan Patel, BA et al.

Journal of Shoulder and Elbow Surgery

Low-dose aspirin demonstrated a very low risk of venous thromboembolism (VTE) following primary shoulder arthroplasty. Preoperative medical risk stratification can help identify patients at higher risk of postoperative VTE.

Ajaykumar Shanmugaraj, Seaher Sakha, Tushar Tejpal et al.

HSS Journal: The Musculoskeletal Journal of Hospital for Special Surgery

Revision arthroscopic Bankart repair shows significant postoperative improvements and comparable recurrent instability rates for shoulder instability. The procedure may be effective for patients with glenoid bone loss less than 20%.

Richard N. Puzzitiello, Michael A. Moverman, Mariano E. Menendez et al.

Journal of Shoulder and Elbow Surgery

This study examined the impact of rotator cuff muscle quality on outcomes after reverse total shoulder arthroplasty. The researchers found that fatty infiltration and muscle atrophy did not significantly affect clinical outcomes in patients with glenohumeral osteoarthritis.

Manan S. Patel, Jacob M. Kirsch, Michael J. Gutman et al.

The American Journal of Sports Medicine

The study found moderate to strong correlation between the SANE-E and ASES-E scores for various elbow conditions. The Single Assessment Numeric Evaluation (SANE) provides a simple way to assess patient-perceived function relative to normal.

Gordon I. Groh, Jacob Kirsch, Gerald R. Williams et al.

Instructional Course Lectures

Shoulder arthroplasty has seen significant growth, particularly with the introduction of reverse shoulder arthroplasty, which now outpaces anatomic shoulder arthroplasty. Understanding basic shoulder arthroplasty is crucial for orthopaedic surgeons.

Kevin J. Cronin, Jacob M. Kirsch, Stephen Gates et al.

Journal of Shoulder and Elbow Surgery

3D imaging is more accurate than 2D imaging for predicting posterior bone loss in Walch B2 glenoids. The study found that 3D measurements better predict the need for an augmented anatomic glenoid component.

Lionel Neyton, Louis Gossing, Gregory Gasbarro et al.

Journal of Shoulder and Elbow Surgery

A study examining a tendon transfer procedure for patients with isolated loss of active external rotation. The modified L'Episcopo procedure demonstrated significant improvements in external rotation, Constant score, and pain for appropriately selected patients.

Jacob M. Kirsch, Surena Namdari

Journal of Bone and Joint Surgery

This review highlights the lack of high-quality evidence guiding rehabilitation protocols after shoulder arthroplasty, emphasizing the need for prospective randomized controlled trials to optimize clinical outcomes and rehabilitation practices.

Julien Paclot, Gregory Gasbarro, Jacob M. Kirsch et al.

Journal of Bone and Joint Surgery Case Connect

A 30-year-old woman with an irreparable subscapularis tear underwent pectoralis major tendon transfer, which was later found to be intact during shoulder replacement, avoiding reverse arthroplasty in a young patient.

Jacob M. Kirsch, Neil K. Bakshi, Olufemi R. Ayeni et al.

HSSJ

This systematic review examined recent literature on glenohumeral internal rotation deficit (GIRD), finding limited clinical research with mostly low-level evidence and significant variability in GIRD definition.

Alexandre L. Ladermann, Philippe Collin, Luc Favard et al.

Unknown

The study investigated the relationship between perinatal complications and obstetrical brachial plexus palsy (OBPP) in patients with static posterior shoulder instability. Findings suggest a higher rate of OBPP-related complications in this patient group compared to the general population.

Lionel Neyton, MD, Jacob M. Kirsch, MD, Philippe Collotte, MD et al.

Journal of Shoulder and Elbow Surgery

In young patients with primary glenohumeral osteoarthritis, total shoulder arthroplasty (TSA) resulted in significantly better functional and subjective outcomes with no significant difference in longitudinal survivorship compared with hemiarthroplasty (HA).

J. M. Kirsch, M. T. Freehill

ISAKOS

This chapter discusses the diagnostic evaluation and treatment strategies for long head of biceps tendon (LHBT) pathology, focusing on operative approaches like tenotomy and tenodesis for managing shoulder pain and associated conditions.

Jacob M. Kirsch, M. Tyrrell Burrus, Asheesh Bedi

Current Reviews in Musculoskeletal Medicine

Professional football quarterbacks are at high risk for upper extremity injuries, particularly shoulder injuries. The majority of these injuries result from direct contact rather than throwing motion, making their injury profile unique among overhead athletes.

Jacob M. Kirsch, Laura Blum, Mark E. Hake

Journal of Orthop Trauma

This study explores surgical management of unstable distal clavicle fractures using hook plate fixation. The technique demonstrates high union rates and good functional outcomes for type II fracture patterns with ligament disruption.

Neil K. Bakshi, Moin Khan, Jacob M. Kirsch et al.

JISAKOS

This systematic review analyzed SLAP pathology literature, finding a predominance of North American studies with low evidence levels and small sample sizes. The research highlights the need for more comprehensive, multi-center studies to clarify surgical and non-operative management approaches.

Jeffrey Kay, M.D., Jacob M. Kirsch, M.D., Neil Bakshi, M.D. et al.

Orthopedics

Overhead throwing athletes demonstrate significant adaptations in their dominant shoulder, including increased humeral retroversion, thickened and stiff posterior capsule, and altered range of motion with reduced internal rotation and increased external rotation.

Michelle C. Burke, Christopher Minnock, Christopher B. Robbins et al.

Journal of Pediatric Orthopaedics

The study developed a standardized method for measuring angulation in adolescent proximal humerus fractures with excellent intrarater and interrater reliability. The proposed technique may provide a more precise method for evaluating indications for operative management.

Jacob M. Kirsch, Moin Khan, Patrick Thornley et al.

Journal of Shoulder and Elbow Surgery

This systematic review examined complications associated with humeral stem exchange versus retention during conversion shoulder arthroplasty. The study found that retaining the humeral stem is associated with lower overall complications, blood loss, operative time, and reoperations.

Jacob M. Kirsch, Asheesh Bedi, Nolan Horner et al.

Journal of Bone and Joint Surgery

This systematic review evaluated the use of tranexamic acid (TXA) in primary shoulder arthroplasty, finding moderate-strength evidence that TXA can significantly reduce blood loss and potentially lower transfusion requirements.

Jacob M. Kirsch, Jared Thomas, Asheesh Bedi et al.

HAND

This review analyzes the etiology, diagnosis, and treatment outcomes of osteochondritis dissecans (OCD) of the capitellum, with a focus on osteochondral autograft transplantation (OAT) for large osteochondral lesions in young athletes.

Oliver Rühmann, Ludger Kirsch, Sara Büch et al.

Journal of Shoulder and Elbow Surgery

The study investigated the primary stability of different screw configurations for shoulder arthrodesis and found that a specific configuration of 3 horizontal humeroglenoid screws and 3 vertical acromiohumeral screws provided the most stable fixation.

Daniel P. Swanson, BS, Kuhan A. Mahendraraj, BA, Ryan Lohre, MD et al.

Seminars in Arthroplasty

A comparative study found no significant differences in patient-reported outcomes between the best anatomic total shoulder arthroplasty (TSA) and reverse shoulder arthroplasty (RSA) patients, with 100% achieving minimal clinically important difference. TSA showed better external and internal rotation improvements.

Jacob M. Kirsch, Joshua S. Dines, Asheesh Bedi

Book Chapter

This chapter details platform shoulder systems that minimize patient morbidity by allowing conversion from anatomic total shoulder arthroplasty to reverse total shoulder arthroplasty without exchanging a well-fixed humeral stem, preserving bone stock and optimizing function.

Christopher J. Fang, MD, Jacob M. Kirsch, MD, Paul-Anthony J. Hart, BA et al.

Seminars in Arthroplasty

Excluding implants, reverse total shoulder arthroplasty (rTSA) and anatomic total shoulder arthroplasty (aTSA) have similar hospital costs. Implants account for 97% of the cost difference between the procedures.

Jacob M. Kirsch, MD, Amit Nathani, MD, MS, Christopher B. Robbins, PhD et al.

The Orthopaedic Journal of Sports Medicine

The critical shoulder angle (CSA) did not appear to be a significant predictor of patient-reported outcomes after arthroscopic repair of atraumatic full-thickness rotator cuff tears.

Neil K. Bakshi, MD, Paul M. Inclan, MD, Jacob M. Kirsch, MD et al.

Sports Health

Evidence suggests pitch counts may decrease injury rates and pain in Little League and high school baseball pitchers, but further research is needed to determine appropriate pitch limits for players of different ages.

Jacob M. Kirsch, MD, Jeffrey N. Lawton, MD

Book Chapter

This chapter covers articular shear fractures of the capitellum and trochlea, including surgical approaches and principles for anatomic restoration to provide stability and reduce elbow stiffness and arthritis.

Jacob M. Kirsch, MD, Michael T. Freehill, MD

Book Chapter

This chapter covers proximal humerus fractures, which comprise approximately 5% of all fractures and are common in older patients, comparing hemiarthroplasty versus reverse total shoulder arthroplasty as treatment options.

Jacob M. Kirsch, M.D., Jared R. Thomas, M.D., Moin Khan, M.D., M.Sc. et al.

Arthroscopy

Osteochondral autograft transplantation (OAT) is successful in treating advanced OCD lesions of the capitellum, with 94% of patients returning to competitive sports at a mean of 5.6 months after surgery.

Kathleen A. Leinweber, Adam R. Bowler, Declan R. Diestel et al.

Journal of Hand and Microsurgery

This article examines the evolving debate between anatomic and reverse shoulder replacement, analyzing the key questions surgeons should be asking when making treatment decisions and the current evidence supporting each approach.