Shoulder Function Research Articles

Association of neighborhood level socioeconomic status and patient reported clinical improvement following total shoulder arthroplasty

BackgroundPrior studies have demonstrated higher preoperative pain and decreased patient reported outcomes (PROs) following total shoulder arthroplasty (TSA) in individuals with lower socioeconomic status (SES). The goal of this study was to investigate the rate of clinical improvement following TSA in individuals with differing SES. MethodsIndividuals included in this study underwent anatomic (a)TSA or reverse (r)TSA by two surgeons between May 2018 and January 2021. Patients were split into three SES groups (low, moderate, and high) based on neighborhood SES level as determined by Area Deprivation Index (ADI). PROs were collected preoperatively and at 9 weeks, 26 weeks, 1 year, and 2 years postoperatively. Shoulder specific PROs included the American Shoulder and Elbows Surgeon’s shoulder score (ASES), 10-point visual analog scale (VAS) for pain, single assessment numeric evaluation (SANE), and Western Ontario Osteoarthritis of the Shoulder Index (WOOS). The Veterans Rand 12 item health survey (VR-12) was utilized to measure overall well-being. We utilized a mixed design analysis of variance (ANOVA) to determine the interaction of time and improvement in PROs following surgery followed by one-way ANOVA with post-hoc analysis. Results/Discussion170 individuals (low SES n=34, moderate n=90, high n=46) met inclusion criteria and were included in this study. There were no significant differences between groups for BMI or age at time of surgery. All groups significantly improved from baseline scores on all PROs (p<.001) with the majority of improvement being achieved within the first year after surgery. There were no significant differences in rate of clinical improvement on PROs among the groups when compared to their respective preoperative scores. Significant differences were discovered when comparing groups independent of time with the low and moderate SES groups scoring significantly lower on ASES when compared to the high SES group (p<.01) and the low SES group reporting significantly higher VAS pain when compared to the high SES group (p=.034). ConclusionIndividuals with lower SES at the neighborhood level report higher pain and decreased shoulder function both preoperatively and postoperatively following TSA; however, the rate of clinical improvement following surgery in this group is comparable to individuals with higher SES when compared to baseline scores. All groups demonstrated significant improvement following surgery, suggesting TSA remains a successful operation regardless of SES.

Effects of acupuncture on shoulder impingement syndrome: A systematic review and meta-analysis.

Shoulder impingement syndrome (SIS) is a common condition that causes chronic shoulder pain. The effectiveness of acupuncture in treating chronic shoulder pain has been documented in previous studies; however, existing systematic reviews and meta-analyses have often excluded Chinese databases and combined different types of acupuncture interventions, such as electroacupuncture, warm acupuncture, pharmacopuncture, and acupotomy. Thus, this study specifically examines the exclusive impact of manual acupuncture on SIS. Several databases, including PubMed, Cochrane Central, Embase, 1 Chinese database (China National Knowledge Infrastructure), and 5 Korean databases (ScienceON, Oriental Medicine Advanced Searching Integrated System, KoreaMed, Korean Studies Information Service System, and KMBASE), were systematically searched for relevant studies. The quality of the included studies was evaluated using the Cochrane Assessment Tool for Risk of Bias Version 2. Data collected from the selected studies were synthesized for meta-analysis. The primary outcome was a pain scale score, and the secondary outcomes were shoulder function and disability. This study included 5 randomized controlled trials. The primary outcome assessment revealed significantly reduced pain (standardized mean difference [SMD] = -0.50, 95% confidence interval [CI] = -0.74 to -0.27) and improvements in shoulder function and disability (SMD = -0.57, 95% CI = -0.96 to -0.19). A subgroup analysis based on treatment duration indicated that short-term acupuncture treatment (≤4 weeks) exhibited a high level of confidence with low heterogeneity (SMD = -0.37, 95% CI = -0.73 to -0.02). Manual acupuncture is effective for relieving pain and improving shoulder function and disability in patients with SIS. However, further research is necessary to validate these findings owing to the limited number of patients and heterogeneity among the studies reviewed.

Fibro-adhesive Bursitis: A Novel Sonographic Finding in Adhesive Capsulitis Patients and a Proposal of Management.

Adhesive capsulitis, also known as "frozen shoulder," is a debilitating shoulder condition increasingly linked to fibroadhesive bursitis, particularly after COVID-19 and related vaccinations. There is no definitive gold standard for its treatment, the primary therapeutic objectives of which are the reduction of pain and the restoration of shoulder range of motion. The aim of our study was to analyze treatment outcomes based on quantitative measures of shoulder function and symptom relief. Conducted between January 2022 and April 2023, the research involved 45 patients initially diagnosed with adhesive capsulitis and associated fibroadhesive bursitis. After excluding nine patients for other concomitant pathologies (five for calcific tendinopathy and four for rotator cuff injury), 36 patients were randomized into two groups: one group was treated with glenohumeral hydrodistension, the other with glenohumeral hydrodistension combined with bursal injection. Assessments were conducted at baseline and then 2, 4, and 6months after treatment, focusing on changes in pain levels, functional scores, and range of motion in all planes. Each group followed a home-based rehabilitation protocol. Significant improvements were observed in both treatment groups, with the combined hydrodistension and bursal injection group showing notably superior outcomes. Specifically, the range of motion in flexion improved from an initial median of 80° to 155° in the combined treatment group, compared to an increase from 75.5° to 129° in the group treated with hydrodistension alone. This enhancement was statistically significant (p < 0.001). Regarding pain reduction, the combined treatment group demonstrated a dramatic decrease in visual analogue scale (VAS) scores, from a baseline median of 7 to 1 at the 6-month follow-up. In contrast, the hydrodistension-only group showed a reduction from 7 to 3, with these differences also proving statistically significant (p < 0.001). Ultrasound-guided hydrodistension of the glenohumeral joint, if combined with bursal injection and specific exercises, effectively reduces pain, decreases disability, and improves range of motion in patients with second-stage adhesive capsulitis. This study highlights the importance of a combined approach in the management of this complex condition, especially after the histological changes that occurred after COVID-19 and related vaccinations. ClinicalTrials.gov identifier NCT06062654.

Implantation of Reverse Shoulder Endoprothesis Using Navigation.

The implantation of a reverse shoulder arthroplasty (RSA) is a proven method for pain relief and improvement in shoulder function. Results vary, depending on the patient's age, the severity of the disease, and the experience of the surgeon. Indications for RSA are diverse, ranging from rotator cuff arthropathy to fractures. Recent studies show improved survival rates and reduced complications after primary implantation. Preoperative planning using 3D-CT or MRI is considered to be the gold standard. Patient-specific instruments (PSI) have been introduced, but are associated with costs and waiting times. Navigation with augmented reality (AR) provides a more efficient alternative. The intraoperative transfer of the plan to the patient is carried out via AR glasses, allowing real-time information without having to divert the surgeon's attention from the surgical site. This optimises the workflow and potentially yields more precise implantation results. In summary, the combination of 3D planning, navigation, and AR offers a promising method for precise and efficient RSA-implantations. Nevertheless, long-term results and functional scores are not yet available.

The SAInT study: a protocol for a randomized controlled trial of steroid injection for subacromial pain syndrome using the anterolateral versus posterior approach.

Steroid injections are used for subacromial pain syndrome and can be administered via the anterolateral or posterior approach to the subacromial space. It is not currently known which approach is superior in terms of improving clinical symptoms and function. This is the protocol for a randomized controlled trial (RCT) to compare the clinical effectiveness of a steroid injection given via the anterolateral or the posterior approach to the subacromial space. The Subacromial Approach Injection Trial (SAInT) study is a single-centre, parallel, two-arm RCT. Participants will be allocated on a 1:1 basis to a subacromial steroid injection via either the anterolateral or the posterior approach to the subacromial space. Participants in both trial arms will then receive physiotherapy as standard of care for subacromial pain syndrome. The primary analysis will compare the change in Oxford Shoulder Score (OSS) at three months after injection. Secondary outcomes include the change in OSS at six and 12 months, as well as the Pain Numeric Rating Scale (0 = no pain, 10 = worst pain), Disabilities of Arm, Shoulder and Hand questionnaire (DASH), and 36-Item Short-Form Health Survey (SF-36) (RAND) at three months, six months, and one year after injection. Assessment of pain experienced during the injection will also be determined. A minimum of 86 patients will be recruited to obtain an 80% power to detect a minimally important difference of six points on the OSS change between the groups at three months after injection. The results of this trial will demonstrate if there is a difference in shoulder pain and function after a subacromial space steroid injection between the anterolateral versus posterior approach in patients with subacromial pain syndrome. This will help to guide treatment for patients with subacromial pain syndrome.

Adolescent shoulder reconstruction techniques in brachial plexus birth injury

Brachial plexus birth injury (BPBI) is common and while most recover, 8%-36% of patients experience permanent impairment. Typically, adolescents with untreated BPBI lack active and passive external rotation (ER) and overhead shoulder function. Limited shoulder function is due to 1) nonoperative BPBI, 2) untreated BPBI, or 3) unrecognized glenohumeral joint dysplasia. We describe a technique for achieving reanimation in adolescents who did not receive timely/effective BPBI care, a postoperative rehabilitation protocol, and results from a series of 8 patients who underwent shoulder reanimation. A comprehensive shoulder reanimation approach is performed. Anteriorly, the pectoralis minor, major, and anterior capsule necessitate release. In severe dysplasia, a coracoidectomy, posterior glenoid osteotomy, and/or subscapularis slide may be necessary. Acromial dysplasia is also common, frequently necessitating osteoplasty. The deltoid is usually nonfunctional, and we use a bipolar latissimus muscle transfer for reanimating abduction and forward flexion (FF). To assist with ease of rehabilitation we will often transfer the tendon of the teres major. Levator scapulae transfer to the supraspinatus is often performed to assist with the initiation of abduction. For ER, the ipsilateral lower trapezius is used. Finally, ipsilateral rhomboid advancement and contralateral lower trapezius muscle transfer is performed for dynamic scapular stabilization. After surgery, all patients participated in our rigorous postoperative rehabilitation protocol. Eight patients (13.8±5.6years, 35±24weeks follow-up) were included. All patients participated in our rehabilitation protocol. Preoperatively, patients generally achieved 0° ER from neutral and in maximum abduction. Postoperatively, patients achieved an average of 71° (30°-90°) ER from neutral and an average of 82° (65°-90°) ER in maximum abduction. Preoperatively, patients generally had 0°-20° of abduction, which they achieved through scapulothoracic motion. Postoperatively, patients could achieve an average of 115° (90°-180°) of abduction. Preoperatively, patients had 0°-20° of FF that was mediated through scapulothoracic motion. Postoperatively, patients' FF increased to an average of 91° (20°-170°). This technique is intended to restore a congruent glenohumeral joint and reanimate structures allowing for abduction, FF, and ER. While we advocate for early treatment of BPBI, applying this technique to undertreated/untreated adolescent patients paired with our rehabilitation protocol results in significant functional improvement, allowing for an improved quality of life.

Comparative Study between Effectiveness of Ultrasound-guided ONA-botulinum Toxin Type A Injection with Exercise Therapy on Shoulder Pain Due to Post-stroke Subscapularis Spasticity

Abstract Background: Several invasive and non-invasive procedures are effective in post-stroke shoulder pain (PSP). In this study, we wanted to assess the role of early intervention by ultrasound-guided botulinum toxin type A injection in shoulder pain due to post-stroke subscapularis spasticity. Methods: This study was a prospective randomised open-label control trial. Patients suffering from PSP due to subscapularis spasticity were selected (n = 80). After computer-generated randomisation, they were allocated into two groups (Group 1: patients on exercise therapy only and Group 2: botulinum toxin injection in subscapularis along with exercise therapy) consisting of 40 patients in each group. The primary outcome measure was Visual Analogue Scale (VAS) score of shoulder pain. The secondary outcome measures were Shoulder Pain and Disability Index (SPADI) and Modified Ashworth Scale (MAS) for spasticity of subscapularis. Results: Statistically significant differences in improvement were found with superior result in Group 2 at 2 weeks for shoulder pain VAS (P = 0.025), SPADI (P = 0.047) and MAS (P = 0.038); at 6 weeks for shoulder pain VAS (P = 0.019), SPADI (P = 0.037) and MAS (P = 0.041); and at 12 weeks for shoulder pain VAS (P = 0.011), SPADI (P = 0.027) and MAS (P = 0.035). No adverse effect was observed in either of the group. Conclusion: In clinical practice, botulinum toxin injection is regarded as the first-choice treatment of focal spasticity in the upper limb, as it gives us the opportunity to target specifically selected muscles. Botulinum toxin injection along with exercise therapy is more effective in early intervention of PSP due to subscapularis spasticity to improve shoulder pain and function.

Results of combined all-arthroscopic Latarjet with Hill-Sachs remplissage for significant bipolar glenohumeral bone loss

BACKGROUNDArthroscopic Latarjet using suture-button fixation has shown good clinical results and low recurrent instability in patients with significant glenoid bone loss (18). However, the presence of an associated Hill-Sachs lesion (HSL) is a risk factor for recurrent instability after isolated Latarjet (8,35,36). The aim of the study is to report clinical and radiological results following all-arthroscopic Latarjet combined with Hill-Sachs Remplissage (HSR). METHODSMonocentric prospective study including 41 patients (mean age 28 ± 7 years) who underwent the combined procedure between 2014-2019 with minimum 2 years follow-up (mean 40 ± 13 months). Indications were glenoid bone loss >10% (mean 23.9% ± 7.5%) and large, deep HSL (Calandra 3). Five (13%) patients had signs of osteoarthrosis stage I preoperatively, four (10%) had previous stabilization surgery (3 cases isolated Bankart and 1 case Bankart combined with HSR), and five (13%) were epileptic. The HSR was performed first followed by guided Latarjet procedure. Primary outcome measures included shoulder stability and function represented by Walch-Duplay and Rowe scores, and subjective shoulder value (SSV) for daily life/sports. Secondary outcome measures included coracoid graft position and union, and glenohumeral osteoarthritis using X-rays and computer tomography (CT). RESULTSThree patients (7%) had recurrent instability: one due to seizure, one following fall, and one related to graft osteolysis. Two patients were revised because of recurrence with arthroscopic distal clavicle autograft. There were no infections, neurologic complications, or hardware failures. The Walch-Duplay score was 90 (95% CI 76.8-93.2) and the Rowe score 95 (95% CI 77.2-92.2). The Median SSV averaged 96% (95% CI 87.5-97.0) for daily life and 90% (95% CI 75.7-90.2) for sports. Mean external rotation with the arm at side was 60˚ (95%CI 59-70) with a median loss 10° (95%CI 3-17) compared to contralateral side. Among patients playing sport preoperatively, 36 (95%) were able to return to sport: 25 (67%) at same level and 7 (18%) at lower level. The coracoid graft was flush with the glenoid surface in 96% of cases and subequatorial in 89%. The graft developed nonunion in 11% and fractured in 5%. Seven patients (18%) had radiographical signs of grade I osteoarthritis. CONCLUSIONCombined arthroscopic Latarjet and HSR is an efficient solution for dealing with significant bipolar glenohumeral bone loss. The combined procedure deserves consideration in high-risk patients including combined bone loss, recurrent anterior instability after failed stabilization procedures and/or seizure.

The Use of a Suture Bridge Technique for Arthroscopic Rotator Cuff Repair in Patients Under 40 Years of Age Resulted in Successful Tendon Healing, Pain Relief, Improved Shoulder Function, and High Patient Satisfaction at a Minimum of 5-Year Follow-Up

PurposeThe purpose of this study was to evaluate the long-term clinical and imaging outcomes after arthroscopic repair of rotator cuff tear (RCT) using a suture bridge technique in patients under 40 years of age. MethodA consecutive series of patients who were treated arthroscopically for RCT by a single surgeon between 2016 and 2018 were retrospectively identified. Both full thickness tears and partial tears were included. Arthroscopic cuff repair employed a knotless double-row suture bridge technique, utilizing braided suture tapes. To assess clinical outcomes, we employed the Constant score, the American Shoulder and Elbow Surgeons score (ASES), a strength score, and a visual analog scale (VAS). Tendon healing was evaluated at 12 months using the Sugaya MRI classification. ResultsA total of 63 patients were included in the study. The mean age at the time of the surgery was 33.6 years (range, 21 to 40) and minimum follow up duration was 5 years. Thirty-nine patients reported occasional sports, eight were professional athletes, while sixteen reported no sportive activity prior to first symptoms. Mean follow-up duration was 66.8 months (range, 62.4 to 88.6 months). A significant improvement was observed in both the Constant score and ASES score. The mean Constant score increased significantly from 39.8 (range, 29 to 52) points to 88.9 (range, 34 to 100) points postoperatively (p < 0.001). Similarly, the ASES score improved significantly from 41.8 (range, 30 to 64) to 90.2 (range, 35 to 100, p < 0.001). Anterior flexion mean improved from 86° (range: 60° to 110°) to 137° (range, 90° to 180°, p < 0.001). Pain significantly decreased after the surgery, VAS descending from 6.3 (range, 3 to 10) to 1.3 (range, 0 to 9) postoperatively. The overall rate of return to previous activities in the cohort was 84% at an average of 10.1 months (range, 6 to 12 months) after surgery. Among the included patients, 85% engaging in occasional sports activities and 67% of elite athletes similarly returned to their pre-injury sports levels after 9.8 (range, 6 to 12) months and 10.7 months (range, 6 to 12) respectively. Two patients (3%) experienced cuff re-rupture, and tendon non-healing (Sugaya stage 3 and stage 4) was observed in five (7%) patients. At the final follow-up, 95% of patients were very satisfied or satisfied with their functional results. ConclusionThe use of a suture bridge technique in arthroscopic RCT repair for patients under 40 years of age resulted in excellent long-term outcomes, including successful tendon healing, pain relief, improved shoulder function, and high patient satisfaction.

Insights into the Medial Pectoral Nerve Transfer for Shoulder Abduction in Brachial Plexus Injuries: A Retrospective Case Series Analysis

Treatment priority in C5, C6, and C7 brachial plexus root avulsion is the recovery of shoulder function through reinnervation of shoulder muscles. The medial pectoral nerve is a potential donor for axillary nerve transfer, but outcomes are sparsely reported. This study reports the results of medial pectoral nerve transfer to the axillary nerve. We conducted a retrospective analysis of 12 patients with traumatic brachial plexus injury (C5, C6, and C7 root avulsion) who underwent medial pectoral nerve transfer to the axillary nerve. Sociodemographic and clinical characteristics, including electromyography findings, were documented. We assessed postoperative shoulder abduction strength and range of motion. Statistical analyses compared presurgery and postsurgery outcomes and contrasted our results with those from a study using spinal accessory nerve transfer to the suprascapular nerve. Postsurgery, the mean shoulder abduction range of motion was 65.45°, with a median strength of M2. Significant improvement was noted compared to preoperative values. However, outcomes did not significantly surpass those from spinal accessory nerve transfer. Electromyography showed a low incidence of motor unit action potentials in the deltoid. Medial pectoral nerve transfer to the axillary nerve did not yield superior results in shoulder abduction and deltoid reinnervation in our group of patients. At present, different nerve donors may also need to be considered for deltoid muscle reinnervation in patients with C5, C6, and C7 root avulsion to achieve better shoulder abduction recovery.

Tendon transfers for the management of irreparable subscapularis tears.

Rotator cuff pathology is the main cause of shoulder pain and dysfunction in older adults. When a rotator cuff tear involves the subscapularis tendon, the symptoms are usually more severe and the prognosis after surgery must be guarded. Isolated subscapularis tears represent 18% of all rotator cuff tears and arthroscopic repair is a good alternative primary treatment. However, when the tendon is deemed irreparable, tendon transfers are the only option for younger or high-functioning patients. The aim of this review is to describe the indications, biomechanical principles, and outcomes which have been reported for tendon transfers, which are available for the treatment of irreparable subscapularis tears. The best tendon to be transferred remains controversial. Pectoralis major transfer was described more than 30 years ago to treat patients with failed surgery for instability of the shoulder. It has subsequently been used extensively to manage irreparable subscapularis tendon tears in many clinical settings. Although pectoralis major reproduces the position and orientation of the subscapularis in the coronal plane, its position in the axial plane - anterior to the rib cage - is clearly different and does not allow it to function as an ideal transfer. Consistent relief of pain and moderate recovery of strength and function have been reported following the use of this transfer. In an attempt to improve on these results, latissimus dorsi tendon transfer was proposed as an alternative and the technique has evolved from an open to an arthroscopic procedure. Satisfactory relief of pain and improvements in functional shoulder scores have recently been reported following its use. Both pectoralis minor and upper trapezius transfers have also been used in these patients, but the outcomes that have been reported do not support their widespread use.

The relationship between scapular dyskinesis and rotator cuff strength in adolescent baseball players

BACKGROUND: In overhead athletes, including adolescent baseball players, scapular dyskinesis is linked to rotator cuff muscle weakness. This relationship exists because the scapula provides a stable platform and maintains the optimal length – tension relationship essential for maximal rotator cuff muscle force. While the link between scapular dyskinesis and the isometric strength of the rotator cuff has been studied, the connection with dynamic strength, particularly isokinetic concentric and eccentric strength, and their effects on functional strength ratios (agonist concentric strength to antagonist eccentric strength ratio), remain less clear. OBJECTIVES: This study aimed to explore the association between scapular dyskinesis and the isokinetic concentric and eccentric strength of the rotator cuff muscles, functional strength ratios, and shoulder function, as well as to determine the differences in these parameters between the dominant shoulder with scapular dyskinesis and the non-dominant shoulder without dyskinesis in adolescent baseball players. METHODS: This study included 50 adolescent baseball players with scapular dyskinesis. Measurements included scapular movement patterns in the scapular dyskinesis test, scapular dyskinesis scores, isokinetic concentric and eccentric internal and external rotation torques (expressed as peak torque/body weight, %), functional strength ratios, and shoulder function. Correlations between scapular dyskinesis scores and various strength and functional measurements were analyzed, as well as differences between the dominant and non-dominant shoulders using the paired t-test. RESULTS: Internal and external rotation torques were reduced on the scapular dyskinesis side across all types of contractions. A weak negative correlation was observed between the scapular dyskinesis score and eccentric internal rotation torque, with no significant correlations seen for the other variables. A moderate negative correlation was found between concentric internal rotation torque and the eccentric external rotation/concentric internal rotation ratio. Additionally, concentric and eccentric external rotation torques showed a weak negative and a positive correlation with the eccentric internal rotation/concentric external rotation ratio, respectively. CONCLUSIONS: Reduced isokinetic strength was noted on the scapular dyskinesis side, correlating particularly with eccentric internal rotation torque. This study highlights the relationship between rotator cuff muscle strength and functional strength ratios, suggesting the need for targeted strategies to restore balance between scapular positioning and rotator cuff strength.

Head-Shaft Angle Influences Isometric Shoulder Strength Levels after Intramedullary Nailing of Proximal Humerus Fractures: A Pilot Study.

Proximal humerus fractures are common fractures of the elderly population which can lead to long-term compromise of a patient's shoulder function. Closed reduction and internal fixation with intramedullary nailing is a well-established surgical technique yielding good outcomes, as perceived by patients, obtained via Patient-Reported Outcome Measures, and objectified by clinical shoulder testing. Apart from conventional range-of-motion testing and clinical shoulder tests, strength testing of the shoulder is a yet-neglected but meaningful and standardizable outcome parameter. In this study, isometric shoulder strength is evaluated in relation to fracture morphology/postoperative reduction quality as well as with patient-reported outcomes. 25 patients (mean age 73.2 ± 10.5 years) underwent isometrics strength-testing of the shoulder joint in the scapular plane (abduction) as well as in the sagittal plane (flexion) as well as hand-grip strength-testing at 4.5 ± 1.88 years follow-up. Pre- and postoperative radiographs were analysed. Patients completed ASES and CMS questionnaires. Patients exhibited a decrease in abduction and flexion force (-24.47% and -25.30%, respectively, p < 0.001) using the contralateral, uninjured arm as reference. Abduction force tended to be decreased in three- and four-part fractures. Patient satisfaction correlated negatively with the relatively reduced force of the affected arm. Varus-angulated humeral heads produced significantly lower abduction force output than valgus- or physiologic angulation (p = 0.014), whereas flexion force was unaffected (p = 0.468). The anatomical reduction had no influence on shoulder strength. Proximal humerus fractures may cause a significant reduction in shoulder function, both reported by patients and objectified by shoulder strength testing. Varus head angulation demonstrated the greatest loss of shoulder strength and should be avoided to ensure proper functioning. Further, strength testing seems a valuable outcome parameter for a thorough shoulder examination with easy obtainability.

Clinical effect of modified anterolateral acromioplasty in rotator cuff repair under shoulder arthroscope

Objective: To compare the clinical effect of modified anterolateral and traditional acromioplasty in arthroscopic rotator cuff repair. Methods: The clinical data of 92 patients with total rotator cuff tears admitted to the Department of Joint Surgery of Jinhua Central Hospital from January 2016 to December 2019 were retrospectively analyzed. Of the patients, 42 were male, 50 were female, with a mean age of (57.1±13.2) years. Among them, 42 patients underwent traditional acromioplasty during arthroscopic rotator cuff repair (traditional group), and 50 underwent modified anterolateral acromioplasty (modified group). The preoperative and postoperative shoulder function of the patients in the two groups were evaluated and compared by using the University of California Los Angeles (UCLA), the rating scale of the American Shoulder and Elbow Surgeons (ASES), and the constant Murley shoulder score scale. And the preoperative and postoperative pain of patients was evaluated with visual analog scale (VAS). The incidence of rotator cuff retears 12 months after operation was counted. Results: There was no statistically significant differences in general information such as gender, age, affected side and course of disease between the two groups before the surgery (all P<0.05). All patients were followed up for (12.9±1.1) months. There was no significant differences in the UCLA score (31.4±3.0 vs 32.0±2.5), ASES score (13.1±0.7 vs 13.3±0.6), Constant Murley shoulder score (92.1±6.6 vs 94.3±4.6) and VAS score (1.5±0.8 vs 1.2±1.1) between the traditional group and the modified group 12 months after the operation (all P>0.05). The preoperative CSA (36.0°±1.7°) in the traditional group did not differ significantly from that at 12 months postoperatively (35.5°±1.2°) (P=0.270); the postoperative CSA at 12 months (30.8°±2.5°) in the modified group was significantly smaller than that before the operation (36.5°±1.9°), and also was smaller than that in the traditional group 12 months after the operation (35.5°±1.2°) (both P<0.05). At 12 months after operation, the rate of rotator cuff tears in the traditional group and modified group was 16.7% (7/42) and 4.0% (2/50), respectively (P=0.045). Conclusions: Traditional and modified anterolateral acromioplasty in treating total rotator cuff tears using arthroscopic rotator cuff repair can significantly improve shoulder joint function. However, modified anterolateral acromioplasty significantly reduces the CSA value and decreases the incidence of rotator cuff re-tears.

Patch Augmentation in Arthroscopic Rotator Cuff Surgery-Review of Current Evidence and Newest Trends.

Background: Rotator cuff tears are a common and debilitating condition requiring surgical intervention. Arthroscopic rotator cuff repair is essential for restoring shoulder function and alleviating pain. Tear classification by size and tendon retraction, along with the grade for fatty infiltration, influence postoperative outcomes, with large tears and higher fatty infiltration grades linked to higher retear rates. Managing complex tears is challenging, with failure rates ranging from 20 to 94%. Patch augmentation has emerged as a promising strategy, using biological or synthetic materials to reinforce tendon repairs, enhancing structural integrity and reducing retear risk. Methods: A review of the recent literature from January 2018 to March 2024 was conducted using PubMed/MEDLINE, Embase, and Web of Science. Keywords included "rotator cuff tear", "rotator cuff augmentation", "rotator cuff patch", "tendon augmentation", "massive rotator cuff tear", "patch augmentation", and "grafts". Relevant articles were selected based on their abstracts for a comprehensive review. Results: Initial methods used autograft tissues, but advances in biomaterials have led to standardized, biocompatible synthetic patches. Studies show reduced retear rates with patch augmentation, ranging from 17 to 45%. Conclusions: Patch augmentation reduces the retear rates and improves tendon repair, but complications like immune responses and infections persist. Cost-effectiveness analyses indicate that while initial costs are higher, long-term savings from reduced rehabilitation, revision surgeries, and increased productivity can make patch augmentation economically beneficial.

Effect of Isometric Resistance Training and Kinesio-Taping on Rotator Cuff Muscle Injuries Among Club-Level Fast Bowlers

Background: Background: Rotator cuff injuries are common among club-level fast bowlers, leading to pain, weakness, and reduced performance. Effective rehabilitation strategies are crucial for enhancing recovery and preventing re-injury.Objective: This study aimed to evaluate the effectiveness of isometric resistance training (IRT) combined with Kinesio-Taping (KT) in managing grade II rotator cuff muscle injuries among club-level fast bowlers.Methods: A total of 20 male fast bowlers with grade II rotator cuff injuries were randomly assigned to either a control group (n=10) or an experimental group (n=10). The experimental group underwent an 8-week rehabilitation protocol combining IRT and KT, while the control group received no specific intervention. Pre- and post-intervention assessments included the Western Ontario Rotator Cuff (WORC) questionnaire, physiotherapeutic tests, range of motion (ROM) measurements using a digital goniometer, and muscle strength evaluations through manual muscle testing. Data were analyzed using paired sample t-tests via SPSS version 25.Results: The experimental group showed significant improvements in ROM (mean difference = -0.850, p=0.000) and muscle strength across all physiotherapeutic tests (e.g., Lift-Off Test, mean difference = 1.320, p=0.000), compared to the control group.Conclusion: The combined use of IRT and KT significantly improved shoulder function, ROM, and muscle strength in fast bowlers with rotator cuff injuries. These findings support the inclusion of these interventions in sports rehabilitation protocols.

Upper limb functional testing: does age, gender, and sport influence performance?

BackgroundMusculoskeletal adaptations in overhead athletes are common in overhead athletes. As they also are involved in injury prevention, there as been an increase in their evaluation through shoulder screening over the last years. However, for some evaluations, and especially for functional testing, there is a lack of normative values, which limits the interpretation of the values measured. Moreover, the influence of age, gender, and sport on upper-limb functional tests remains underexplored. Methods587 athletes (handball players, rugby players, swimmers, tennis players, and volleyball players) performed a battery of upper-limb functional tests between 2018 and 2023, including the Modified Athletic Shoulder Test (M-AST), the Single Arm Medicine Ball Throw (SAMBT), the Seated Single Arm Shot Put Test (SSASPT), the Upper Limb Rotation Test (ULRT), the Upper Quarter Y Balance Test (UQYBT), the Modified Closed Kinetic Chain Upper Extremity Stability Test (MCKCUEST), and the Posterior Shoulder Endurance Test (PSET). In total, normative values as well as the influence of age, gender and sport on upper limb functional performance were obtained for 496 of them. ResultsThe M-AST revealed sport-specific adaptations, with dominant arms significantly outperforming non-dominant arms, notably in handball, rugby, and tennis. The SAMBT and SSASPT highlighted the influence of age and gender on upper limb power, with males consistently outperforming females. The ULRT demonstrated similar rotation in both arms across sports, while gender disparities were still observed. The UQYBT exhibited surprising consistency in upper-quarter balance across sports and age groups (p>0.05). The MCKCUEST showed age-related improvements in stability, while the PSET demonstrated age-related differences in posterior shoulder endurance in swimmers. ConclusionThis study contributes to advances in sports medicine by better understanding functional shoulder performances in upper limb athletes. The differences observed according to the sport, gender or age underscore the importance of sport-specific assessments and interventions. Moreover, the normative values provided will be essential for primary prevention as well as for determining return to play capacity after an injury or surgery.

Fifteen-Year Results of a Comparative Analysis of Tendon Repair Versus Physiotherapy for Small-to-Medium-Sized Rotator Cuff Tears: A Concise Follow-up of Previous Reports.

The optimal treatment for small-to-medium-sized rotator cuff tears remains a topic of debate. While both tendon repair and physiotherapy have shown comparable short-term results, there are concerns about the long-term effectiveness of physiotherapy. In 2 previous reports presenting the 5 and 10-year results of this trial, significant and increasing differences were observed in favor of tendon repair. Further investigation of the unexplored time interval after 10 years is essential to fully understand the implications of our treatment approaches. A total of 103 patients with a full-thickness rotator cuff tear not exceeding 3 cm were randomly allocated to tendon repair or physiotherapy with optional secondary repair. Measurements of shoulder function were performed by a blinded assessor at 6 months and 1, 2, 5, 10, and 15 years. The outcome of primary interest was the 15-year result for the Constant score. Secondary outcome measures included the self-report section of the American Shoulder and Elbow Surgeons (ASES) score; the Short Form-36 (SF-36) Health Survey; assessments of pain, motion, and strength; and patient satisfaction. Tear-size increase in unrepaired tears was assessed by sonography. Statistical analysis was by mixed-model analysis for repeated measurements and by intention to treat. Eighty-three (81%) of 103 patients attended the 15-year follow-up. Fifteen of 51 patients in the physiotherapy group had crossed over to secondary surgery. Results from primary tendon repair were superior by a mean difference of 11.8 points for the Constant score (p = 0.001), 13.9 points for the ASES score (p < 0.001), 1.8 cm on a 10-cm visual analog scale for pain (p < 0.001), and 16.2° and 22.4°, respectively, for pain-free abduction and flexion (p = 0.04 and 0.001). On the SF-36, differences did not reach significance for any of the scoring scales. In 26 tears treated by physiotherapy only, the mean tear size had increased from 16.2 to 31.6 mm in the anterior-posterior direction. Long-term outcomes from primary tendon repair remained superior to physiotherapy up to 15 years of follow-up, supporting its use as the primary treatment for small-to-medium-sized rotator cuff tears. Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

Nurse-led support impact via a mobile app for breast cancer patients after surgery: a quasi-experimental study (step 2).

Breast cancer patients may experience some health issues following surgery. Training patients about self-care plays a vital role in managing these symptoms. Mobile applications are a contemporary and appropriate approach to support patients about the potential symptoms following breast cancer surgery. This quasi-experimental study aimed to assess the impact of nurse-led support mobile application (NL-Mapp) delivered on breast cancer patients after surgery. Ninety participants were recruited, with 45 assigned to the intervention group and 45 to the control group. Subjects in the intervention group received NL-Mapp in addition to routine care, while those in the control group received only routine care over four weeks. The intervention included educational content on the postoperative period of breast cancer. Outcomes were assessed at baseline (M0), before discharge (M1), and one month after surgery (M2). The intervention group patients had significantly improved pain, affected shoulder functions, and anxiety owing to the effects of group, time, and group-time interaction. Body image and sexual adjustment were enhanced based on time and group-time interaction effects. During the follow-up period, experimental group patients experienced an improvement in body image and sexual adjustment, while those in the control group showed a decrease. This suggests that NL-Mapp may play a significant role in training breast cancer patients to manage their symptoms after surgery.

Sexual dimorphism and allometry in human scapula shape.

Scapula shape is highly variable across humans and appears to be sexually dimorphic-differing significantly between biological males and females. However, previous investigations of sexual dimorphism in scapula shape have not considered the effects of allometry (the relationship between size and shape). Disentangling allometry from sexual dimorphism is necessary because apparent sex-based differences in shape could be due to inherent differences in body size. This study aimed to investigate sexual dimorphism in scapula shape and examine the role of allometry in sex-based variation. We used three-dimensional geometric morphometrics with Procrustes ANOVA to quantify scapula shape variation associated with sex and size in 125 scapulae. Scapula shape significantly differed between males and females, and males tended to have larger scapulae than females for the same body height. We found that males and females exhibited distinct allometric relationships, and sexually dimorphic shape changes did not align with male- or female-specific allometry. A secondary test revealed that sexual dimorphism in scapula shape persisted between males and females of similar body heights. Overall, our findings indicate that there are sex-based differences in scapula shape that cannot be attributed to size-shape relationships. Our results shed light on the potential role of sexual selection in human shoulder evolution, present new hypotheses for biomechanical differences in shoulder function between sexes, and identify relevant traits for improving sex classification accuracy in forensic analyses.