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Medical Ultrasonography Sep 2023Peripheral nerve blocks have long been established as a crucial part of the enhanced recovery pathways after surgery. Interscalene brachial plexus block (ISB) is mainly...
Peripheral nerve blocks have long been established as a crucial part of the enhanced recovery pathways after surgery. Interscalene brachial plexus block (ISB) is mainly indicated for anaesthesia and analgesia during shoulder and proximal arm surgery. Ultrasound technology has remarkably improved the efficacy and success rates of the ISB while limiting its potential complications.
Topics: Humans; Brachial Plexus Block; Anesthetics, Local; Ultrasonography; Shoulder; Ultrasonography, Interventional
PubMed: 36780597
DOI: 10.11152/mu-3885 -
Physical Therapy Mar 2023The purpose of this study was to assess feasibility, reliability, and validity of a new performance-based test, the Shoulder Performance Activity Test (SPAT).
OBJECTIVE
The purpose of this study was to assess feasibility, reliability, and validity of a new performance-based test, the Shoulder Performance Activity Test (SPAT).
METHODS
People with shoulder pain (n = 93) and without shoulder pain (n = 43) were included. The SPAT consists of overhead reach, hand behind head, and hand behind back tasks, each performed with 20 repetitions and rated by time, pain, and effort. The SPAT scores were summed for time, pain, and effort, and a total score across the 3 tasks. Feasibility was assessed by the percentage of SPAT task completion, test-retest reliability by intraclass correlation coefficient (ICC), standard error measurement, minimal detectable change, and known-groups construct validity by comparing between groups (shoulder pain and no pain) and between shoulders in those with pain.
RESULTS
All participants performed the 3 SPAT tasks. The ICC was 0.74-0.91, and the minimal detectable change was 3.1-4.7 for task scores and 10.0 points for the total score. Individuals with pain presented higher tasks and total scores compared with those without pain. The moderate/severe pain group had higher scores than the low pain and no shoulder pain groups, and the low pain group had higher scores than the no pain group. Scores were higher in the involved shoulder compared with the uninvolved shoulder.
CONCLUSION
The SPAT is a feasible and reliable performance-based test for use in patients with shoulder pain and can differentiate between individuals with and without pain, among different levels of pain, and between involved and uninvolved shoulders.
IMPACT
The SPAT provides a standardized method for clinicians to assess shoulder functional performance tasks, which can enable a comprehensive assessment of shoulder disability and clinical decision making. The error metrics can be used to determine meaningful changes in performance.
Topics: Humans; Reproducibility of Results; Feasibility Studies; Surveys and Questionnaires; Shoulder; Shoulder Pain; Disability Evaluation
PubMed: 37172131
DOI: 10.1093/ptj/pzad006 -
PloS One 2020Positional information on the shoulder girdle (the clavicle and scapula) is important for a better understanding of the function of the upper limb in the locomotive...
Positional information on the shoulder girdle (the clavicle and scapula) is important for a better understanding of the function of the upper limb in the locomotive system as well as its associated disease pathogenesis. However, such data are limited except for information on the axial position of the scapula. Here, we describe a three-dimensional reconstruction of the shoulder girdle including the clavicle and scapula, and its relationship to different landmarks in the body. Thirty-six human fetal specimens (crown-rump length range: 7.6-225 mm) from the Kyoto Collection were used for this study. The morphogenesis and three-dimensional position of the shoulder girdle were analyzed with phase-contrast X-ray computed tomography and magnetic resonance imaging. We first detected the scapula body along with the coracoid and humeral head at Carnegie stage 18; however, the connection between the body and coracoid was not confirmed at this stage. During development, all landmarks on the shoulder girdle remained at the same axial position except for the inferior angle, which implies that the scapula enlarged in the caudal direction and reached the adult axial position in the fetal period. The scapula body was rotated internally and in the upward direction at the initiation of morphogenesis, but in the fetal period the scapula body was different than that in the adult position. The shoulder girdle was located at the ventral side of the vertebrae at the time of initial morphogenesis, but changed its position to the lateral side of the vertebrae in the late embryonic and fetal periods. Such a unique position of the shoulder girdle may contribute to the stage-specific posture of the upper limb. Adequate internal and upward rotation of the scapula could help in reducing the shoulder width, thereby facilitating childbirth. The data presented in this study can be used as normal morphometric references for shoulder girdle evaluations in the embryonic and fetal periods.
Topics: Fetal Development; Growth and Development; Humans; Range of Motion, Articular; Shoulder; Shoulder Joint; Upper Extremity
PubMed: 32915841
DOI: 10.1371/journal.pone.0238225 -
Journal of Orthopaedic Research :... Apr 2022Repair tissue healing after rotator cuff repair remains a significant clinical problem, and excessive shoulder activity after surgical repair is believed to contribute...
Repair tissue healing after rotator cuff repair remains a significant clinical problem, and excessive shoulder activity after surgical repair is believed to contribute to re-tears. In contrast, small animal studies have demonstrated that complete removal of activity impairs tendon healing and have advocated for an "appropriate" level of activity, but in humans the appropriate amount of shoulder activity to enhance healing is not known. As an initial step toward understanding the relationship between postoperative shoulder activity and repair tissue healing, the objectives of this study were to assess the precision, accuracy, and feasibility of a wrist-worn triaxial accelerometer for measuring shoulder activity. Following assessments of precision (±0.002 g) and accuracy (±0.006 g), feasibility was assessed by measuring 1 week of shoulder activity in 14 rotator cuff repair patients and 8 control subjects. Shoulder activity was reported in terms of volume (mean acceleration, activity count, mean activity index, active time) and intensity (intensity gradient). Patients had significantly less volume (p ≤ .03) and intensity (p = .01) than controls. Time post-surgery was significantly associated with the volume (p ≤ .05 for mean acceleration, activity count, and mean activity index) and intensity (p = .03) of shoulder activity, but not active time (p = .08). These findings indicate this approach has the accuracy and precision necessary to continuously monitor shoulder activity with a wrist-worn sensor. The preliminary data demonstrate the ability to discriminate between healthy control subjects and patients recovering from rotator cuff repair and provide support for using a wearable sensor to monitor changes over time in shoulder activity.
Topics: Animals; Arthroscopy; Humans; Rotator Cuff; Rotator Cuff Injuries; Shoulder; Treatment Outcome
PubMed: 34191325
DOI: 10.1002/jor.25122 -
American Journal of Obstetrics &... Nov 2021The mechanics of labor describe the forces required for fetal descent, and the movements that the fetus must perform to overcome the resistance met by the maternal bony... (Review)
Review
The mechanics of labor describe the forces required for fetal descent, and the movements that the fetus must perform to overcome the resistance met by the maternal bony pelvis and soft tissue. The fetus negotiates the birth canal and rotational movements are necessary for descent. Anglo-American literature lists 7 cardinal movements, namely engagement, descent, flexion, internal rotation, extension, external rotation, and expulsion. German and older English literature lists only 4 rotational movements as the cardinal movements and excludes engagement, descent, and expulsion. We would argue that descent is the main purpose of the uterine powers and cardinal movements, a description of the rotational movements the fetal head and shoulders must perform to obtain descent. Ultrasound offers a historically unique opportunity for noninvasive, dynamic studies of the mechanics of labor. The information gathered by clinical examination and ultrasound should be integrated into clinical decision making.
Topics: Female; Fetus; Head; Humans; Labor Presentation; Movement; Pregnancy; Shoulder
PubMed: 34214716
DOI: 10.1016/j.ajogmf.2021.100436 -
Journal of ISAKOS : Joint Disorders &... Sep 2021Venous thromboembolism (VTE) is a rare yet known complication of shoulder surgery. Concerning shoulder arthroplasty, reported rates of VTE range from 0.2% to 16%. Unlike... (Review)
Review
Venous thromboembolism (VTE) is a rare yet known complication of shoulder surgery. Concerning shoulder arthroplasty, reported rates of VTE range from 0.2% to 16%. Unlike many lower extremity procedures, particularly total hip and knee arthroplasty, chemical prophylactic guidelines for VTE in shoulder surgeries have not been established. Some argue that doing so is unnecessary. On the contrary, mechanical prophylaxis is nearly universally accepted in shoulder surgery, particularly for more lengthy procedures. With limited VTE incidence in shoulder surgery, treatment is anecdotally derived from the hip and knee arthroplasty literature. Recent studies have successfully identified risk factors for VTE related to the patient and to the surgery itself. Awareness of these risk factors by the surgeon and declaration of these factors to the patient should be discussed as part of the informed consent process. Further investigational studies and larger patient cohorts will be necessary to optimise VTE prevention in shoulder surgeries.
Topics: Arthroplasty, Replacement, Knee; Humans; Incidence; Risk Factors; Shoulder; Venous Thromboembolism
PubMed: 34535553
DOI: 10.1136/jisakos-2020-000538 -
Folia Morphologica 2022Due to its many variations, the scapula is among the most frequently examined bones. Especially the acromion can be of different shapes and sizes. Measurements of the...
BACKGROUND
Due to its many variations, the scapula is among the most frequently examined bones. Especially the acromion can be of different shapes and sizes. Measurements of the morphometric structures in the shoulder joint make it easier to explain the cause of the various shoulder problems. The objective of this study is putting emphasis on the importance of acromion types, os acromiale presence and acromial morphometric measurements in the aetiology and diagnosis of shoulder pain.
MATERIALS AND METHODS
A retrospective study, based on 100 patients of both genders who presented with the complaints of shoulder pain and underwent magnetic resonance imaging, was conducted. Within this scope, types of acromion, slope of acromion, length of acromion, length of coracoid process, the distance between acromion and coracoid process, lateral acromial angle (LAA), critical shoulder angle (CSA), acromial index (AI) and acromiohumeral distance were measured. The data were analysed considering the gender and acromion types and the presence of os acromiale is investigated.
RESULTS
The most common acromion was type II (curved) (frequency rate 62%) while the rate of type I (flat) and type III (hooked) acromions were 21% and 17%, respectively. The length of acromion and coracoid process were found to be significantly longer in males, while no significant difference between genders in terms of the distance between acromion and coracoid process were observed. Furthermore, while negative correlation between LAA and AI as well as LAA and CSA were observed; positive correlation between AI and CSA was found. In addition, there was negative correlation between slope of acromion and acromiohumeral distance. Besides, acromiohumeral distance was significantly higher in males. Regarding the presence of os acromiale, it was observed in 3 women out of 59 and 2 men out of 41, which indicated no significant difference between genders.
CONCLUSIONS
It is evaluated that the morphometric measurement is of importance in contributing clinically in distinguishing the problems that may occur according to gender and acromion types.
Topics: Female; Humans; Male; Shoulder; Retrospective Studies; Shoulder Pain; Acromion; Scapula
PubMed: 34545562
DOI: 10.5603/FM.a2021.0087 -
Musculoskeletal Surgery Mar 2023Metal ion release may cause local and systemic effects and induce hypersensitivity reactions. The aim of our study is first to determine if implant-related...
PURPOSE
Metal ion release may cause local and systemic effects and induce hypersensitivity reactions. The aim of our study is first to determine if implant-related hypersensitivity correlates to patient symptoms or not; second, to assess the rate of hypersensitivity and allergies in shoulder arthroplasty.
METHODS
Forty patients with shoulder replacements performed between 2015 and 2017 were studied with minimum 2-year follow-up; no patient had prior metal implants. Each patient underwent radiographic and clinical evaluation using the Constant-Murley Score (CMS), 22 metal and cement haptens patch testing, serum and urine tests to evaluate 12 metals concentration, and a personal occupational medicine interview.
RESULTS
At follow-up (average 45 ± 10.7 months), the mean CMS was 76 ± 15.9; no clinical complications or radiographic signs of loosening were detected; two nickel sulfate (5%), 1 benzoyl peroxide (2.5%) and 1 potassium dichromate (2.5%) positive findings were found, but all these patients were asymptomatic. There was an increase in serum aluminum, urinary aluminum and urinary chromium levels of 1.74, 3.40 and 1.83 times the baseline, respectively. No significant difference in metal ion concentrations were found when patients were stratified according to gender, date of surgery, type of surgery, and type of implant.
CONCLUSIONS
Shoulder arthroplasty is a source of metal ion release and might act as a sensitizing exposure. However, patch test positivity does not seem to correlate to hypersensitivity cutaneous manifestations or poor clinical results. Laboratory data showed small constant ion release over time, regardless of gender, type of shoulder replacement and implant used.
LEVELS OF EVIDENCE
Level II.
Topics: Humans; Aluminum; Shoulder; Hypersensitivity; Metals; Arthroplasty, Replacement; Shoulder Joint
PubMed: 34719773
DOI: 10.1007/s12306-021-00729-4 -
Journal of Rehabilitation Medicine Aug 2023Post-stroke shoulder pain is a serious challenge for stroke survivors. The aim of this meta-analysis was to review the literature to confirm information on structural... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Post-stroke shoulder pain is a serious challenge for stroke survivors. The aim of this meta-analysis was to review the literature to confirm information on structural changes in post-stroke shoulders detected by ultrasound examination.
METHODS
PubMed, Embase, Web of Science and ClinicalTrials.gov were searched until 7 December 2022, for studies describing shoulder sonographic findings in stroke patients. Two independent authors selected the studies, extracted the data, and performed the critical appraisal.
RESULTS
A total of 23 clinical studies were included. The most prevalent pathologies in hemiplegic shoulders pertained to the biceps long head tendon (41.4%), followed by the supraspinatus tendon (33.2%), subdeltoid bursa (29.3%), acromioclavicular joint (15.0%), and subscapularis tendon (9.2%). The common pathological findings encompassed bicipital peritendinous effusion (39.2%), biceps tendinopathy (35.5%), subdeltoid bursitis (29.3%) and supraspinatus tendinopathy (24.6%). Biceps long head tendon and supraspinatus tendon abnormalities were observed significantly more in the hemiplegic (vs contralateral) shoulders, with odds ratios of 3.814 (95% confidence interval 2.044-7.117) and 2.101 (95% confidence interval 1.257-3.512), respectively. No correlation was observed between motor function and shoulder pathology.
CONCLUSION
Ultrasonography enabled the identification of common shoulder pathologies after stroke. Further research is needed to establish the association between these changes and the clinical course of stroke patients.
Topics: Humans; Shoulder; Hemiplegia; Rotator Cuff; Tendons; Bursitis; Pain
PubMed: 37615388
DOI: 10.2340/jrm.v55.13432 -
Journal of Athletic Training Aug 2022The wall-slide exercise is commonly used in clinic and research settings. Theraband positioning variations for hip exercises have been investigated and used, but... (Randomized Controlled Trial)
Randomized Controlled Trial
CONTEXT
The wall-slide exercise is commonly used in clinic and research settings. Theraband positioning variations for hip exercises have been investigated and used, but Theraband positioning variations for upper extremity wall-slide exercises, although not commonly used, have not been examined.
OBJECTIVE
To evaluate the effect of different Theraband positions (elbow and wrist) on the activation of the scapular and shoulder muscles in wall-slide exercises and compare these variations with each other and with regular wall-slide exercises for the upper limbs.
DESIGN
Descriptive laboratory study.
SETTING
University laboratory.
PATIENTS OR OTHER PARTICIPANTS
A total of 20 participants (age = 23.8 ± 3 years, height = 176.5 ± 8.14 cm, mass = 75.3 ± 12.03 kg, body mass index = 24.23 ± 4.03) with healthy shoulders.
INTERVENTION(S)
Participants performed wall-slide exercises (regular and 2 variations: Theraband at the elbow and Theraband at the wrist) in randomized order.
MAIN OUTCOME MEASURE(S)
Surface electromyographic activity of the trapezius (upper trapezius [UT], middle trapezius [MT], and lower trapezius [LT]), infraspinatus, middle deltoid (MD), and serratus anterior (SA) muscles.
RESULTS
Regular wall-slide exercises elicited low activity in the MD and moderate activity in the SA muscles (32% of maximal voluntary isometric contraction [MVIC] in the SA), whereas the Theraband-at-elbow and Theraband-at-wrist variations elicited low activity in the MT, LT, infraspinatus, and MD muscles and moderate activity in the SA muscle (46% and 34% of MVIC in the SA, respectively). The UT activation was absent to minimal (classified as 0% to 15% of MVIC) in all wall-slide exercise variations. The Theraband-at-wrist variation produced lower UT:MT, UT:LT, and UT:SA levels compared with the regular wall-slide exercise and Theraband-at-elbow variation.
CONCLUSIONS
In shoulder rehabilitation, clinicians desiring to activate the scapular stabilization muscles should consider using the Theraband-at-wrist variation. Those seeking more shoulder-abduction activation and less scapular stabilization should consider using the Theraband-at-elbow variation of the upper extremity wall-slide exercise.
Topics: Adult; Humans; Young Adult; Electromyography; Exercise Therapy; Muscle, Skeletal; Scapula; Shoulder; Superficial Back Muscles
PubMed: 36356616
DOI: 10.4085/1062-6050-0305.21