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J Am Acad Orthop Surg 2020 Aug;28(15):607-616

From Wake Forest Baptist Health, Winston-Salem, NC (Dr. Waterman), The Arthritis Program, University Health Network, Toronto, Ontario, Canada (Dr. Leroux), the University of Toronto Health Sciences, Toronto, Ontario, Canada (Dr. Frank), and Rothman Institute, Westchester, NY (Dr. Romeo).

Primary arthroscopic Bankart repair is a common procedure that is increasing in popularity; however, failure rates can approach up to 6% to 30%. Factors commonly attributed to failure include repeat trauma, poor or incomplete surgical technique, humeral and/or glenoid bone loss, hyperlaxity, or a failure to identify and address rare pathology such as a humeral avulsion of the glenohumeral ligament lesion. A thorough clinical and radiographic assessment may provide insight into the etiology, which can assist the clinician in making treatment recommendations. Read More

Arthroscopy 2020 Jul 25. Epub 2020 Jul 25.

Steadman Philippon Research Institute, Vail, CO, USA; The Steadman Clinic, Vail, CO, USA. Electronic address:

Purpose: To assess failure rates and patient reported outcomes following revision of failed proximal LHB tenodesis.

Methods And Materials: Patients from an active military population who underwent revision proximal (suprapectoral) to distal (subpectoral) long head of the biceps (LHB) tenodesis were prospectively enrolled. Patients were included if they were between the ages of 16-60 years presenting after a prior biceps tenodesis with mechanical failure and clinical failure, defined as Single Assessment Numeric Evaluation (SANE) or American Shoulder and Elbow Surgeons (ASES) < 70. Read More

J Shoulder Elbow Surg 2020 Jun 9. Epub 2020 Jun 9.

Department of Orthopaedic Surgery, The Rothman Institute at Thomas Jefferson University, Philadelphia, PA, USA. Electronic address:

Background: Humeral stem designs for total shoulder arthroplasty have varied over the years, with a recent trend toward shorter stems. The purpose of this study was to examine the impact of humeral component stem length on the ability to restore the native humeral head anatomy.

Methods: We performed a retrospective review including patients who underwent total shoulder arthroplasty for primary osteoarthritis between 2007 and 2017 with complete operative reports and adequate radiographs. Read More

J Shoulder Elbow Surg 2020 Jul 21. Epub 2020 Jul 21.

Rothman Orthopaedic Institute, Department of Orthopaedic Surgery, Philadelphia, PA 19148, USA.

Background: Total shoulder arthroplasty is an accepted treatment for glenohumeral osteoarthritis. The Arthrex Eclipse shoulder prosthesis is a stemless, canal-sparing, humeral prosthesis with bone ingrowth capacity on the trunnion as well as through the fenestrated hollow screw that provides both diaphyseal and metaphyseal load sharing and fixation.

Methods: 16 sites in the United States enrolled 327 patients (237 Eclipse, 90 Univers II) between 2013-2019. Read More

Curr Rheumatol Rep 2020 Jul 23;22(9):53. Epub 2020 Jul 23.

Rheumatology Department, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba, Spain.

Purpose Of Review: Hip and shoulder disease can occur in patients with spondyloarthritis (SpA). While hip involvement has been widely assessed in axial SpA patients, studies in the overall SpA population as well as studies focused on shoulder involvement are scarce. Here, we review the most recent studies on the epidemiology, evaluation, and treatment of root joint involvement in SpA patients. Read More

Curr Rev Musculoskelet Med 2020 Jul 13. Epub 2020 Jul 13.

Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN, 55905, USA.

Purpose Of The Review: Functionally irreparable rotator cuff tears (FIRCTs) remain one of the most challenging pathologies treated in the shoulder. The lower trapezius transfer represents a very promising treatment option for posterosuperior FIRCT. This article reviews the role for the lower trapezius transfer in the treatment of patient with FIRCTs and highlights the tips and tricks to performing this arthroscopic-assisted procedure. Read More

Curr Rev Musculoskelet Med 2020 Jul 13. Epub 2020 Jul 13.

Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, 3333 North Calvert Street, Suite 400, Baltimore, MD, 21218, USA.

Purpose Of Review: Massive irreparable rotator cuff tears present a treatment challenge for the orthopedic surgeon. There is no gold standard among numerous treatment options including nonoperative management, partial repair, debridement, superior capsular reconstruction, and reverse shoulder arthroplasty. In recent years, yet another option, an implantable biodegradable subacromial balloon spacer has become available with promising early results. Read More

JBJS Case Connect 2020 Apr-Jun;10(2):e0322

1Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Unité de l'épaule, Lyon, France 2Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 3MedSport, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan.

Case: A 30-year-old woman with an irreparable subscapularis tear presented with persistent painful anterior instability despite several open and arthroscopic stabilization procedures. A pectoralis major tendon transfer (PMTT) was performed. The patient subsequently developed progressive glenohumeral arthritis over the next 10 years, ultimately necessitating shoulder arthroplasty. Read More

Arthroscopy 2020 Jul;36(7):2022-2024

Vail, Colorado.

Arthroscopic treatment of glenohumeral arthritis is an important option in young or active patients in whom arthroplasty is not desired or ideal. Typically, arthroscopic management is a bridging procedure with the goals of decreasing pain, improving function, and delaying the need for shoulder arthroplasty. Many levels of treatment have been described ranging from simple to complex-from joint lavage to glenohumeral ligament release and loose body removal to comprehensive arthroscopic management, which includes glenohumeral chondroplasty, synovectomy, loose body removal, microfracture, capsular release, humeral osteoplasty, axillary nerve neurolysis, subacromial decompression, and biceps tenodesis. Read More

Orthopedics 2020 Jun 30:1-6. Epub 2020 Jun 30.

Both rotator cuff repair (RCR) and reverse total shoulder arthroplasty (RTSA) are effective treatment options for chronic large degenerative rotator cuff tear (RCT) in the elderly. The goal of this study was to evaluate national trends for surgical management of chronic RCT among patients without glenohumeral arthritis. The authors conducted a retrospective review from 2007 to 2015 using the PearlDiver database. Read More

Bone Joint J 2020 Jul;102-B(7):881-889

Kantonsspital Baden, Baden, Switzerland.

Aims: Conservative treatment of moderately displaced proximal humeral head fractures yields good clinical results, but secondary fragment displacement may occur. Identification of those fractures at risk of displacement may influence initial decision-making.

Methods: A total of 163 shoulders in 162 patients with conservatively treated isolated proximal humeral fractures were included. Read More

Am J Sports Med 2020 Jul 24;48(9):2090-2096. Epub 2020 Jun 24.

Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.

Background: Long-term results of the arthroscopic Bankart repair in patients older than 40 years are unknown and may be favorable in terms of postoperative glenohumeral arthritis as opposed to the long-term results of the open Latarjet procedure in patients older than 40 years.

Purpose: To analyze our long-term results of the arthroscopic Bankart repair for recurrent anterior shoulder instability in patients older than 40 years of age and to compare these results with previously published long-term results of the Latarjet procedure in a cohort of similar age.

Study Design: Cohort study; Level of evidence, 3. Read More

Ann R Coll Surg Engl 2020 Jul 15;102(6):408-411. Epub 2020 Jun 15.

Department of Trauma and Orthopaedics, Wrightington Wigan and Leigh NHS Trust, Wigan, UK.

Introduction: Axillary nerve injury is a major complication of shoulder surgery during glenoid exposure. The aim of this study was to measure the mean distance between the inferior glenoid and the axillary nerve in healthy shoulders and then to compare this distance between osteoarthritic and rotator cuff deficient glenohumeral joints.

Methods: The magnetic resonance images of 50 patients with normal glenohumeral joints were reviewed. Read More

J Clin Orthop Trauma 2020 May 6;11(Suppl 3):S372-S377. Epub 2019 Sep 6.

Perth Royal Infirmary, Taymount Terrace, Perth, PH1 1NX, UK.

Background: The management of large rotator cuff tears in patients without evidence of glenohumeral arthritis is challenging and controversial. We wished to investigate the viability of Graft Jacket® augmentation and assess the clinical and radiological outcomes in a prospective study with a select cohort of patients.

Methods: All procedures were performed by a single shoulder surgeon over a three-year period. Read More

JSES Int 2020 Jun 29;4(2):397-399. Epub 2020 Apr 29.

Department of Trauma and Orthopaedics, Bedford Hospital NHS Trust, Bedford, United Kingdom.

Background And Hypothesis: Reverse shoulder arthroplasty (RSA) is an increasingly popular treatment modality for glenohumeral joint arthritis in association with rotator cuff arthropathy. A prolonged hospital stay following joint arthroplasty risks increased complications for patients plus financial implications for institutions. We hypothesized that RSA could be safely and effectively carried out as an outpatient procedure with reduced risks to patients and institutional costs. Read More

Arthrosc Tech 2020 May 25;9(5):e675-e681. Epub 2020 Apr 25.

Florida Sports Injury & Orthopaedic Institute, Clermont, Florida, U.S.A.

Massive, irreparable rotator cuff tears are challenging to manage. Often, these tears are not amenable to primary repair and necessitate additional treatment options. This is especially true in patients with absent glenohumeral arthritis in the setting of a massive, irreparable rotator cuff tear. Read More

Clin Orthop Surg 2020 Jun 14;12(2):224-231. Epub 2020 May 14.

Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Background: Shoulder arthroplasty is technically demanding and relies heavily on the precision of surgical techniques. Proper glenoid component sizing plays a crucial role in successful shoulder arthroplasty. We measured the size and penetrative depth of the glenoid for peg or screw fixation in nonarthritic and degenerative arthritic shoulders by using three-dimensional computed tomography to determine the reference dimensions of the glenoid in nonarthritic and degenerative arthritic shoulders. Read More

J Am Acad Orthop Surg 2020 May 28. Epub 2020 May 28.

From Wake Forest Baptist Health, Winston-Salem, NC (Dr. Waterman), The Arthritis Program, University Health Network, Toronto, Ontario, Canada (Dr. Leroux), the University of Toronto Health Sciences, Toronto, Ontario, Canada (Dr. Frank), and Rothman Institute, Westchester, NY (Dr. Romeo).

Primary arthroscopic Bankart repair is a common procedure that is increasing in popularity; however, failure rates can approach up to 6% to 30%. Factors commonly attributed to failure include repeat trauma, poor or incomplete surgical technique, humeral and/or glenoid bone loss, hyperlaxity, or a failure to identify and address rare pathology such as a humeral avulsion of the glenohumeral ligament lesion. A thorough clinical and radiographic assessment may provide insight into the etiology, which can assist the clinician in making treatment recommendations. Read More

J Orthop 2020 Nov-Dec;22:160-164. Epub 2020 Apr 29.

Department of Orthopaedic Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA.

Background: The critical shoulder angle (CSA) has been associated with full-thickness rotator cuff tears both in the presence and absence of glenohumeral arthritis. It is unclear whether the CSA can be reliably measured from plain radiographs of concentric glenohumeral osteoarthritis amongst examiners at differing levels of training.

Methods: We retrospectively reviewed the radiographs of consecutive patients who underwent shoulder arthroplasty for glenohumeral osteoarthritis. Read More

Orthopedics 2020 Jul 7;43(4):215-220. Epub 2020 May 7.

Irreparable massive cuff tears in young patients pose a difficult problem for shoulder surgeons. Arthroscopic superior capsular reconstruction has shown promise in recent years in the treatment of this challenging patient population. The majority of the literature is limited to surgical techniques. Read More

FP Essent 2020 Apr;491:17-21

WellSpan York Hospital Sports Medicine Fellowship, 1001 S George St, York, PA 17403.

Glenohumeral joint osteoarthritis (OA) and adhesive capsulitis are two common causes of shoulder pain. The glenohumeral joint is the third most common large joint affected by OA. Studies have shown that 16% to 20% of adults older than 65 years have radiographic signs of glenohumeral joint OA. Read More

Shoulder Elbow 2020 Apr 14;12(2):91-98. Epub 2018 Nov 14.

Bristol Royal Infirmary, Bristol, UK.

Background: We report functional outcomes at six years in patients with varying degrees of fatty infiltration and atrophy of the rotator cuff muscles who have undergone anatomic total shoulder replacement.

Methods: A retrospective analysis of case notes and magnetic resonance imaging scans of patients undergoing total shoulder replacement for primary glenohumeral arthritis was performed. Patients were grouped based upon their pre-operative magnetic resonance imaging findings for fatty infiltration, muscle area and tendinopathy. Read More

J Clin Orthop Trauma 2020 Mar 12;11(Suppl 2):S270-S274. Epub 2019 Aug 12.

Dept of Orthopaedic and Trauma Surgery, College of Medicine, Dentistry and Nursing, Tayside Orthopaedic and Rehabilitation Technology (TORT) Centre, Ninewells Hospital and Medical School, Dundee, DD1 9SY, Scotland, United Kingdom.

JSES Int 2020 Mar 14;4(1):144-150. Epub 2020 Jan 14.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.

Background: Glenoid baseplate and glenosphere positioning may affect scapular notching rates. The purpose of this study was to assess various radiographic parameters and correlate them with scapular notching after primary reverse total shoulder arthroplasty (RTSA) at a minimum follow-up time of 5 years.

Methods: The study sample included 147 primary RTSA with good-quality postoperative radiographs at least 5 years after implantation (mean follow-up 6. Read More

J Clin Orthop Trauma 2020 Mar 14;11(Suppl 2):S275-S279. Epub 2020 Feb 14.

Wrightington Hospital, WWL NHS Foundation Trust, Hall Lane, Wigan, WN6 9EP, UK.

Introduction: Walch type B2 has biconcave glenoid with posterior erosion, bone loss and humeral head subluxation. This leads to decreased glenohumeral contact area and increased contact pressure. During total shoulder arthroplasty(TSA), uncorrected retroversion causes eccentric loading and failure of glenoid component. Read More

Arthroscopy 2020 Jul 6;36(7):2010-2021. Epub 2020 Mar 6.

Division of Sports Medicine, Department of Orthopedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, U.S.A.. Electronic address:

Purpose: To perform a systematic review of the literature describing outcomes, surgical procedures, and rates of conversion to arthroplasty after arthroscopic debridement of symptomatic primary glenohumeral osteoarthritis.

Methods: The Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, PubMed, Embase, and Ovid MEDLINE were queried. Articles without sufficiently detailed descriptions of the debridement procedure, those primarily describing cartilage resurfacing procedures, or those that did not report any postoperative outcomes were excluded. Read More

Am J Sports Med 2020 04 9;48(5):1207-1212. Epub 2020 Mar 9.

Investigation performed at University of California, San Francisco, San Francisco, California, USA.

Background: Patients with posterior shoulder instability may have bone and cartilage lesions (BCLs) in addition to capsulolabral injuries, although the risk factors for these intra-articular lesions are unclear.

Hypothesis: We hypothesized that patients with posterior instability who had a greater number of instability events would have a higher rate of BCLs compared with patients who had fewer instability episodes.

Study Design: Cross-sectional study; Level of evidence, 3. Read More

Arch Orthop Trauma Surg 2020 Mar 5. Epub 2020 Mar 5.

Centro di chirurgia della spalla e del gomito, Ospedale Civile Cervesi, Cattolica, Italy.

Purpose: Chronic anterior glenohumeral joint instability is a common situation and can lead to progressive cartilage deterioration and ultimately instability arthopathy. Progressive cartilage deterioration can occur despite conservative or surgical treatment and the sequelae of these conditions are often addressed with total shoulder arthroplasty. Aims of the present study were to analyze the available literature to describe the technical aspects of this particular operation and to report outcomes and complication rates. Read More

Orthop Clin North Am 2020 Apr 16;51(2):259-264. Epub 2020 Jan 16.

Midwest Orthopaedics at Rush, Rush University Medical Center, 1611 West Harrison Street, Chicago, IL 60612, USA. Electronic address: https://twitter.com/grant_garrigues.

The relationship between obesity and glenohumeral osteoarthritis is relatively understudied. The purpose of this study was to better define this relationship by age- and gender-matching 596,874 patients across six body mass index (BMI) cohorts and determining the prevalence of glenohumeral osteoarthritis and the standardized rate of glenohumeral arthroplasty in each cohort. Individuals with a BMI over 24 were found to be at increased odds for developing glenohumeral osteoarthritis, compared to the normal BMI cohort, and individuals with a BMI over 30 were additionally found to be at increased odds for undergoing glenohumeral arthroplasty. Read More

JBJS Essent Surg Tech 2019 Oct-Dec;9(4). Epub 2019 Dec 17.

New York University Langone Orthopedic Hospital, New York, NY.

Glenohumeral arthritis has become increasingly prevalent. For patients with glenohumeral arthritis and an intact rotator cuff, an anatomic total shoulder arthroplasty (TSA) has been shown to provide substantial pain relief with consistent, reproducible results. The primary indication is intractable pain that has not responded to nonoperative treatment, resulting in a substantial negative impact on the quality of life of the patient. Read More

Instr Course Lect 2019 ;68:65-78

Understanding the location and magnitude of glenoid bone loss is extremely important at the time of both primary and revision shoulder arthroplasty. Specific patterns of glenoid bone loss have been described for primary glenohumeral osteoarthritis, cuff tear arthropathy, inflammatory arthritis, and failed shoulder arthroplasty. Although radiographs are useful in planning arthroplasty procedures, CT has become the imaging modality of choice to evaluate and classify bone loss before shoulder arthroplasty. Read More

Instr Course Lect 2020 ;69:583-594

The glenoid is considered a weak link in total shoulder arthroplasty because failure on the glenoid side is one of the most common reasons for revision of total shoulder arthroplasty. Glenoid wear is commonly seen in glenohumeral arthritis and compromises glenoid bone stock and also alters the native version and inclination of the glenoid. It is critical to recognize glenoid wear and correct it intraoperatively to avoid component malposition, which can negatively affect the survivorship of the glenoid implant. Read More

Arthroscopy 2020 02;36(2):576-578

The critical shoulder angle and its correlation with rotator cuff tears and alternatively glenohumeral osteoarthritis has become a popular research topic in recent years. With carefully standardized x-rays, a correlation emerges. This development has generated interest in potential clinical usefulness for this measurement, as well as possible surgical interventions to modify the course of these shoulder problems. Read More

Shoulder Elbow 2020 Feb 5;12(1):31-37. Epub 2019 Feb 5.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.

Background: Preoperative planning software has been developed to measure glenoid version, glenoid inclination, and humeral head subluxation on computed tomography (CT) for shoulder arthroplasty. However, most studies analyzing the effect of glenoid positioning on outcome were done prior to the introduction of planning software. Thus, measurements obtained from the software can only be extrapolated to predict failure provided they are similar to classic measurements. Read More

Shoulder Elbow 2020 Feb 31;12(1):3-11. Epub 2019 May 31.

Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

Background: Severe glenohumeral arthritis in the young/active patient remains challenging. Historically, glenohumeral arthrodesis was recommended with limited return of function. Total shoulder arthroplasty has shown increasing survivorship at 15 years; however it is still not ideal for young patients. Read More

Neuromodulation 2020 Jan 13. Epub 2020 Jan 13.

International Spine Pain & Performance Center, Washington, DC, USA.

Objective: The objective of this study was to determine the effect of axillary peripheral nerve stimulation (PNS) on pain reduction in patients with chronic shoulder pain. Chronic shoulder pain was defined as pain greater than six months originating from any of the following and not the result of a stroke: subacromial impingement syndrome/rotator cuff pathology, glenohumeral joint arthritis, acromioclavicular joint arthritis, adhesive capsulitis, or biceps tendinopathy.

Materials And Methods: Eight adult patients with chronic shoulder pain, as defined above, who either did not respond to surgical intervention or who were deemed not ideal surgical candidates underwent permanent axillary PNS therapy. Read More

Cureus 2019 Nov 26;11(11):e6239. Epub 2019 Nov 26.

Emergency Medicine, Thomas Jefferson University Hospital, Philadelphia, USA.

Calcium pyrophosphate dihydrate (CPPD) crystal deposition disease or pseudogout is an idiopathic articular disease that predominantly affects elderly patients. It is caused by a systemic deposition of calcium pyrophosphate (CPP) crystals in the articular and hyaline joint cartilage. The majority of cases present as chronic arthritis, but a subset of CPPD can present as rapid onset of sharp pain and joint swelling, posing a diagnostic challenge. Read More

Arthroscopy 2020 01;36(1):99-105

Steadmon Phillipon Research Institute, Vail, Colorado, U.S.A.

Purpose: To assess the accuracy of measuring glenoid version on magnetic resonance imaging (MRI) in the presence of varying amounts of the medial scapula body as compared with the gold standard of glenoid version measured on computed tomography (CT) imaging, including the entire scapula in a cohort of young patients with shoulder instability and without glenohumeral arthritis.

Methods: A retrospective review was performed on instability patients with preoperative MRI and CT imaging. Measurements of available scapular width and glenoid version were performed using the Cobb angle method to measure the angle between the plane of the glenoid fossa to Friedman's line on axial images. Read More

Arthroscopy 2020 01;36(1):106-107

Computed tomography (CT) has been the gold standard for measuring glenoid version in patients with glenohumeral osteoarthritis or instability. However, few studies have compared measurements of glenoid version on magnetic resonance imaging (MRI) versus CT. Clinicians should feel confident in assessing glenoid version on MRI in the absence of CT imaging. Read More

J Shoulder Elbow Surg 2020 Jun 4;29(6):1206-1213. Epub 2019 Dec 4.

Centre Orthopédique Santy, Hôpital Privé Jean Mermoz Ramsay GDS, Lyon, France.

Introduction: Recurrent anterior glenohumeral instability has been studied in the young population and limited evidence is available for adolescent patients. Our study is a retrospective review of patients aged <17 years who underwent open Latarjet procedure.

Methods: Forty-five patients were available for review. Read More

Pain Pract 2020 04 23;20(4):412-421. Epub 2019 Dec 23.

Department of Rehabilitation Medicine, College of Medicine, Yeungnam University, Daegu, Korea.

Background: Pulsed radiofrequency (PRF) stimulation has been safely and effectively applied for controlling various types of pain.

Purpose: We reviewed the literature on the efficacy of PRF for controlling pain in joint disorders.

Methods: We searched PubMed for papers published prior to September 7, 2019, that used PRF to treat pain due to joint disorders. Read More

Curr Rev Musculoskelet Med 2019 Dec;12(4):451-459

Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA.

Purpose Of Review: The purpose of the current article is to review the available literature related to bone marrow-derived mesenchymal stem cell therapy in the management of musculoskeletal pathologies and demonstrate the critical need for additional well-designed clinical studies.

Recent Findings: In recent years, there has been a rapid increase in interest regarding the use of bone marrow-derived mesenchymal stem cells in the treatment of musculoskeletal injury and disease. The clinical use of BM-MSCs and other forms of stem cell therapy has far outpaced the basic and translational science evidence required to elucidate the potential efficacy of this orthobiologic treatment approach. Read More

Orthop Traumatol Surg Res 2019 12 13;105(8):1529-1533. Epub 2019 Nov 13.

Center for Musculoskeletal Surgery, Charité, Universitaetsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.

Background: The subscapularis musculotendinous unit provides a stabilizing effect on the glenohumeral joint and thus, enables normal active range of motion. As pathologies of the subscapularis tendon (SSC) are diagnosed with increased regularity, treatment strategies and their long-term consequences are of relevant interest. Therefore, the primary objective of this retrospective case series was to evaluate clinical and radiological long-term results after open repair of large SSC tears. Read More

Orthop Traumatol Surg Res 2019 12 11;105(8):1503-1507. Epub 2019 Nov 11.

Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Schlierbacher Landstraße 200a, 69118 Heidelberg, Germany. Electronic address:

Introduction: The aim of this study is to investigate the variation of the glenohumeral and scapulothoracic motion in progressive severity of glenohumeral osteoarthritis using a 3-D-motion analysis. Moreover, the variation of the Constant Score is evaluated.

Hypothesis: The hypothesis is that the motion of the scapulothoracic joint may partly compensate for the loss of the glenohumeral joint movement in patients with increasing severity of glenohumeral osteoarthritis. Read More

JSES Open Access 2019 Oct 13;3(3):145-153. Epub 2019 Sep 13.

Department of Orthopaedic Surgery, The Cleveland Clinic Foundation, Cleveland, OH, USA.

Background: Glenoid morphology can influence the outcomes of total shoulder arthroplasty. This study examines the results of a new technique according to preoperative glenoid staging. We hypothesized that there would be no statistically significant difference in outcomes between Levine concentric (Walch A) and Levine nonconcentric (Walch B) glenoids treated for primary glenohumeral arthritis using nonspherical humeral head and inlay glenoid replacement. Read More

J Emerg Med 2019 Oct 30. Epub 2019 Oct 30.

Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan; Department of Pharmacology, University of Michigan, Ann Arbor, Michigan.

Background: Shoulder pseudodislocation, or "drooping shoulder," presents with acute pain and deformity of the joint, with radiographs demonstrating inferior subluxation of the humeral head relative to the glenoid fossa. The diagnosis must be made promptly and distinguished from true glenohumeral dislocation, both to avoid unnecessary attempts at closed reduction and to facilitate investigation of the underlying cause, which may include septic arthritis, hemarthrosis, or other emergent etiologies. Point-of-care ultrasound (POCUS) may be useful in the evaluation of emergency department (ED) patients with suspected pseudodislocation. Read More

Acta Orthop Belg 2019 Sep;85(3):274-282

The purpose is to report the clinical and radiographic outcomes, complications and reoperations of reverse shoulder arthroplasty (RSA) for glenoid dysplasia. All patients who had undergone RSA for osteoarthritis secondary to underlying glenoid dysplasia were retrospectively identified. The study included twelve shoulders (11 patients), with a mean (SD) patient age of 62. Read More

BMC Musculoskelet Disord 2019 Oct 12;20(1):445. Epub 2019 Oct 12.

Department of Orthopaedic Surgery, National Hospital Organization Tokyo Medical Center, 2-5-1, Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan.

Background: Abscess formation in the subscapularis muscle is a rare clinical condition. Few reports are available regarding the treatment methods and surgical approaches for subscapularis intramuscular abscesses. Here, we describe a case of subscapularis intramuscular abscess that was treated successfully via surgical drainage using a new approach, the "dorsal subscapularis approach". Read More

J Shoulder Elbow Surg 2019 Nov 1;28(11):2041-2052. Epub 2019 Oct 1.

Department of Sports Medicine and Shoulder Surgery, Hospital for Special Surgery, New York, NY, USA.

The field of orthopedic surgery has seen a rapid increase in the use of various biologic agents for the treatment of common musculoskeletal injuries. Most biologic agents attempt to harness or mimic naturally occurring growth factors, cytokines, and anti-inflammatory mediators to improve tissue healing and recovery. The most commonly used biologic agents are platelet-rich plasma and cells derived from bone marrow aspirate and adipose tissue. Read More

Anaerobe 2020 Apr 1;62:102105. Epub 2019 Oct 1.

Division of Infection Diseases, Mayo Clinic, Rochester, MN, USA.

Septic arthritis due to Clostridium species is rare. We report the first case of Clostridium paraputrificum native shoulder septic arthritis and osteomyelitis. An 86-year-old woman with osteoarthritis presented with acute-onset right shoulder pain. Read More