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J Med Case Rep 2022 Jun 17;16(1):240. Epub 2022 Jun 17.

Department of Radiology, Tonan Hospital, Sapporo, Hokkaido, Japan.

Background: Partial-thickness rotator cuff tears are commonly found in the articular-side tendon of the supraspinatus; however, isolated lesions, except those occurring in the supraspinatus tendons, are rare. We report three cases of isolated bursal-side infraspinatus tears that were difficult to detect by magnetic resonance imaging but could be visualized by computed tomography bursography.

Case Presentation: Three Asian patients (59-71 years old) with shoulder pain ranging from 1 month to 3 years in duration were each diagnosed with shoulder impingement syndrome. Read More

BMC Musculoskelet Disord 2022 Jun 10;23(1):561. Epub 2022 Jun 10.

Department of Orthopaedic Surgery, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile.

Background: Atraumatic full thickness rotator cuff tears (AFTRCT) are common lesions whose incidence increases with age. Physical therapy is an effective conservative treatment in these patients with a reported success rate near 85% within 12 weeks of treatment. The critical shoulder angle (CSA) is a radiographic metric that relates the glenoid inclination with the lateral extension of the acromion in the coronal plane. Read More

Stud Health Technol Inform 2022 Jun;290:512-516

Peter L. Reichertz Institute for Medical Informatics of TU Braunschweig and Hannover Medical School, Braunschweig, Germany.

Especially in chronic diseases, such as shoulder impingement syndrome (SIS), good self-management is important for patients to take personal responsibility for their treatment and make informed decisions in rehabilitation processes. Mobile apps integrating game design elements have great potential to increase patients self-management skills. A total of 21 functionalities for a self-management app were derived from semi-structured interviews with six patients and three therapists. Read More

Arthroscopy 2022 Jun;38(6):1900-1903

The Fourth Medical Center, Chinese PLA General Hospital, Beijing, China.

Patients with femoroacetabular impingement syndrome (FAIS) often have extra-articular disorders, such as external snapping hip (ESH). We recommend that obvious ESH be addressed by endoscopic transversal iliotibial band (ITB) release during hip arthroscopy for FAIS because the residual serious snapping caused by ESH negatively affects the outcome of hip arthroscopy. However, for mild ESH without indications for severe trochanteric bursitis on magnetic resonance imaging, we still propose that physical therapy, extracorporeal shock wave therapy, or local injection be performed for pain relief. Read More

Ultrasound J 2022 Jun 1;14(1):22. Epub 2022 Jun 1.

The University of Lahore, Lahore, Pakistan.

Background: Shoulder impingement syndrome is the painful entrapment of the soft tissues between the acromion and the humeral head. The severity of shoulder impingement could be graded according to the limitation of shoulder joint moment. The reliability of sonographic findings in the grading of shoulder impingement severity grading is required to be evaluated by the consistency of findings between the observers. Read More

Clin Orthop Relat Res 2022 Jul 24;480(7):1263-1266. Epub 2022 May 24.

Head, Finnish Centre for Evidence-Based Orthopaedics (FICEBO), Helsinki, Finland.

PLoS One 2022 16;17(5):e0268533. Epub 2022 May 16.

Department of Physical Therapy and Assistive Technology, National Yang Ming Chiao Tung University, Taipei, Taiwan.

The purpose of this study is to assess and compare corticospinal excitability in the upper and lower trapezius and serratus anterior muscles in participants with and without shoulder impingement syndrome (SIS). Fourteen participants with SIS, and 14 without SIS were recruited through convenient sampling in this study. Transcranial magnetic stimulation assessment of the scapular muscles was performed while the participants were holding their arm at 90 degrees scaption. Read More

Arthroscopy 2022 05;38(5):1387-1389

Department of Orthopaedic Surgery, Royal Brisbane Hospital Herston, Australia; Orthopaedic Research Centre of Australia, Herston, Australia.

Arthroscopy 2022 05;38(5):1385-1387

Department of Orthopedics, Medisch Spectrum Twente, Enschede, The Netherlands.

J Bodyw Mov Ther 2022 04 2;30:42-52. Epub 2021 Nov 2.

The Marmara University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Istanbul, Turkey. Electronic address:

Introduction: The aim of this study was to compare the effectiveness of Proprioceptive Neuromuscular Facilitation (PNF) exercises and shoulder mobilization (SM) in addition to conventional physiotherapy on pain, range of motion (ROM), functionality, and muscle strength in patients with Subacromial Impingement Syndrome (SIS).

Methods: Forty-four patients were randomly allocated into three groups as conventional physiotherapy (control group; n = 14), conventional physiotherapy + PNF exercises (PNF group; n = 15), and conventional physiotherapy + SM techniques (SM group; n = 15). Pain, ROM, muscle strength, and functionality were evaluated by using VAS (Visual Analog Scale), goniometer, push-pull dynamometer, Constant-Murley score and DASH (Disabilities of the Arm, Shoulder and Hand) score. Read More

J Orthop Res 2022 Apr 30. Epub 2022 Apr 30.

Department of Human Physiology, University of Oregon, Eugene, Oregon, USA.

The objective of this study was to explore whether hypersensitivity in patients with subacromial pain syndrome (SPS) manifests purely as localized peripheral sensitization or central sensitization, is influenced by the presence of subacromial pain, and presents similarly in male and female patients. Pressure pain threshold was assessed in both a patient cohort with unilateral SPS and an uninjured matched control group. Control subjects were assessed twice, with a 15 minute rest period between testing, while patients were assessed at baseline and after an almost instantaneous reduction in pain arising from an anesthetic injection in patients. Read More

Muscle Nerve 2022 Jul 24;66(1):6-14. Epub 2022 Apr 24.

H. Ben Taub Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, Texas, USA.

Musculoskeletal mimics of cervical radiculopathy will be explored in this AANEM monograph. A review of the literature and textbooks was conducted. Musculoskeletal cervical radiculopathy mimics include: (1) head/neck pain, such as neck tension, cervicogenic headache, and temporomandibular disorder; (2) referred pain from shoulder pathology, such as rotator cuff tears/impingement; (3) elbow region abnormalities, including medial/lateral epicondylitis; (4) wrist/hand conditions, such as DeQuervain's tenosynovitis and intersection syndrome; (5) muscle connective tissue disorders, including myofascial trigger points; (6) conditions that have decreased range of motion, including frozen shoulder and rounded shoulders with tight pectoral/scalene muscles; (7) conditions with joint hyperlaxity and instability, as seen in post-stroke shoulder subluxation; (8) vascular conditions, such as thoracic outlet syndrome; and (9) autonomic controlled soft tissue changes associated with complex regional pain syndrome. Read More

Clin Biomech (Bristol, Avon) 2022 May 25;95:105631. Epub 2022 Mar 25.

Department of Human Physiology, University of Oregon, Eugene, OR, United States of America. Electronic address:

Background: Subacromial pain syndrome is the predominant cause of shoulder pain, accounting for approximately half of all shoulder complaints. This population presents with weakness of the involved shoulder. However, there is a gap in our understanding of how pain contributes to this weakness, and whether there are sex related differences. Read More

J Pain Res 2022 28;15:837-856. Epub 2022 Mar 28.

Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, 310014, People's Republic of China.

Background: In recent years, the research on subacromial impingement syndrome (SIS) has gradually increased. Although the research directions are diverse, the overall research status and trend are not clear.

Objective: The aim of our study was to use bibliometric analysis to identify the trends in SIS-related research and to analyze the most highly cited scientific publications on SIS. Read More

Jt Dis Relat Surg 2022 28;33(1):142-148. Epub 2022 Mar 28.

Muğla Sıtkı Koçman Üniversitesi Eğitim ve Araştırma Hastanesi Ortopedi ve Travmatoloji Kliniği, 48000 Menteşe, Muğla, Türkiye.

Objectives: This study aims to investigate the relationship between proximal biceps tendon disorders and the degree of subacromial impingement in patients who underwent arthroscopic subacromial debridement.

Patients And Methods: Between January 2015 and June 2021, a total of 110 patients (44 males, 66 females; mean age: 52.5±11. Read More

Arch Phys Med Rehabil 2022 Mar 21. Epub 2022 Mar 21.

Department of Physiotherapy, School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.

Objective: To investigate whether muscle energy technique (MET) to the thoracic spine decreases the pain and disability associated with shoulder impingement syndrome (SIS).

Design: Single-center, 3-arm, randomized controlled trial, single-blind, placebo control with concealed allocation and a 12-month follow-up.

Setting: Private osteopathic practice. Read More

Occup Environ Med 2022 Mar 22. Epub 2022 Mar 22.

Department of Environmental and Occupational Medicine, Aarhus University, Aarhus, Denmark

Aim: The aim was to examine exposure-response relations between surgery for subacromial impingement syndrome (SIS) and intensities of lifting/carrying and pushing/pulling loads during a 10-year time window.

Methods: We conducted a register-based cohort study (2003-2008), comprising persons born in Denmark (1933-1977) with ≥5 years of work experience (N=2 374 403). Information on surgery for SIS was retrieved from the Danish National Patient Register (N=14 188). Read More

Musculoskeletal Care 2022 Mar 22. Epub 2022 Mar 22.

Primary Care Centre Versus Arthritis, School of Medicine, Keele University, Keele, Staffordshire, UK.

Objectives: To investigate whether the accuracy of placement of ultrasound-guided (US-guided) corticosteroid injections for subacromial pain (impingement) syndrome (SAPS) influences pain and function outcomes.

Methods: This was a secondary analysis of data collected in a previous randomised controlled trial (RCT). Video images of US-guided subacromial corticosteroid injections delivered in the RCT were reviewed to categorise injection accuracy into three groups: definitely/probably not in the subacromial bursa (Group 1); probably in the subacromial bursa (Group 2); and definitely in the subacromial bursa (Group 3). Read More

JBJS Rev 2022 03 18;10(3). Epub 2022 Mar 18.

Morgan-Kallman Clinic, Wilmington, Delaware.

»: The thrower's shoulder has been a subject of great interest for many decades. Different theories have been proposed to clarify the pathophysiology, clinical presentation, and treatment options for this condition. In this review article, we summarize the relevant anatomy and pathophysiology and how these translate into signs, symptoms, and imaging findings. Read More

Am J Sports Med 2022 03;50(3):NP18-NP19

Am J Sports Med 2022 03;50(3):NP20-NP23

BMC Musculoskelet Disord 2022 Mar 11;23(1):234. Epub 2022 Mar 11.

Department of Physical Therapy, Chitose Rehabilitation College, Chitose, Hokkaido, Japan.

Background: Subacromial impingement (SAI) may be a cause of age-related rotator cuff abnormalities; therefore, the purpose of this study was to compare SAI characteristics between younger and older adults. In addition to the fact that thickened supraspinatus tendon (SST) indicates tendon abnormalities, SAI characteristics have been recognized as follows: greater SST thickness, reduced acromiohumeral distance (AHD), greater reduction of AHD (∆AHD) with arm elevation, and a higher percentage of SST within AHD (i.e. Read More

J Electromyogr Kinesiol 2022 Apr 26;63:102647. Epub 2022 Feb 26.

Department of Physical Therapy and Athletic Training, Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, United States.

Impairments in muscle activation have been linked to increased risk of developing shoulder pathologies such as subacromial impingement syndrome (SIS) and associated rotator cuff injuries. Individuals with SIS have demonstrated increased upper trapezius (UT) muscle activation and reduced serratus anterior (SA) and lower trapezius (LT) muscle activation, which can be collectively represented as ratios (UT/SA and UT/LT). Targeted exercise is an important component of shoulder rehabilitation programs to re-establish optimal muscle activation and ratios. Read More

Front Bioeng Biotechnol 2022 15;10:830508. Epub 2022 Feb 15.

Department of Physical Medicine and Rehabilitation and Community and Geriatric Research Center, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan.

Current imaging methods used to examine patients with subacromial impingement syndrome (SIS) are limited by their semi-quantitative nature and their capability of capturing dynamic movements. This study aimed to develop a quantitative analytic model to assess subacromial motions using dynamic ultrasound and to examine their reliability and potential influencing factors. We included 48 healthy volunteers and examined their subacromial motions with dynamic ultrasound imaging. Read More

Praxis (Bern 1994) 2022 ;111(3):113-121

Klinik für Orthopädie, Universitätsspital Basel, Basel.

CME Sonography 103: Subacromial Pain Syndrome (SAPS) and Subcoracoid Impingement (SCI) Pain in the shoulder can have its origin in different structures of the shoulder joint or in affected periarticular structures. Therefore, it is important to be able to make a specific diagnosis and identify the exact pathology behind it in order to initiate the most appropriate individually precise treatment. In this review, we discuss possible causes of impingement of the shoulder. Read More

Physiother Theory Pract 2022 Feb 25:1-9. Epub 2022 Feb 25.

Department of Physiotherapy, Faculty of Health and Caring Sciences, University of West Attica, Laboratory of Neuromuscular and Cardiovascular Study of Motion (Lanecasm), Egaleo, Greece.

Background: The Shoulder Rating Questionnaire (SRQ) was created in the English language to assess shoulder disorders in six areas: global function, pain, daily activities, recreational and athletic activities, and work.

Purpose: The study aimed to translate and culturally adapt Shoulder Rating Questionnaire (SRQ) into Greek.

Methods: The SRQ English version was translated and adapted into the Greek language using forward translation, expert panel synthesis, and backward translation procedures. Read More

Clin Biomech (Bristol, Avon) 2022 03 14;93:105596. Epub 2022 Feb 14.

Universidade Federal do Rio Grande do Norte, Departamento de Fisioterapia, Campus Universitário Lagoa Nova, CEP 59078-970, Natal/RN, Brazil. Electronic address:

Background: Deficits in movement and muscle activation of scapulohumeral joint are related to Subacromial Pain Syndrome. Electromyography biofeedback during exercise may enhance muscle activation and coordination, and consequently improve pain and shoulder function.

Methods: This study compared the effects of an exercise protocol with and without using electromyographic biofeedback on pain, function and movement of the shoulder complex in subjects with Subacromial Pain Syndrome. Read More

Arthrosc Sports Med Rehabil 2022 Jan 28;4(1):e181-e188. Epub 2022 Jan 28.

Mizzou Therapy Services, University of Missouri Health Care, Columbia, Missouri, U.S.A.

Thoracic outlet syndrome (TOS) is a clinical diagnosis resulting from the impingement of neurovascular structures between the clavicle and first rib. Effective prevention and nonoperative treatment in high-performance athletes with TOS are not well documented. The objective of reporting this case was to discuss the symptom progression, relevant clinical findings, and rehabilitation of an overhead athlete with diagnosed neurogenic TOS. Read More

Turk J Phys Med Rehabil 2021 Dec 1;67(4):534-537. Epub 2021 Dec 1.

Department of Physical Medicine and Rehabilitation, Health Sciences University, Haydarpaşa Numune Training and Research Hospital, Istanbul, Turkey.

Aneurysmal bone cyst (ABC) is an expansile cystic lesion which may affect any bone of the skeleton. Although extremely rare, lesions with histomorphological characteristics of an ABC occur in the soft tissue. Herein, we report the first case of ABC involving the supraspinatus muscle and mimicking common pathologies, such as myofascial pain syndrome or subacromial impingement syndrome. Read More

Orthop Traumatol Surg Res 2022 04 22;108(2):103211. Epub 2022 Jan 22.

Centre de la main, 47, rue de la Foucaudière, 49000 Trélazé, France.

Introduction: One of the causes of scapular dyskinesia is the retraction of the pectoralis minor muscle. It can be the cause of shoulder pain associated with increased anterior tilt and internal rotation of the shoulder.

Hypothesis: Arthroscopic release of the pectoralis minor tendon is effective for shoulder pain, linked to a correction of dyskinesia, resulting in the early disappearance of scapulalgia. Read More