Project description:ObjectiveTo investigate the efficacy of a programme of manual therapy and exercise treatment compared with placebo treatment delivered by physiotherapists for people with chronic rotator cuff disease.DesignRandomised, participant and single assessor blinded, placebo controlled trial.SettingMetropolitan region of Melbourne, Victoria, Australia.Participants120 participants with chronic (>3 months) rotator cuff disease recruited through medical practitioners and from the community.InterventionsThe active treatment comprised a manual therapy and home exercise programme; the placebo treatment comprised inactive ultrasound therapy and application of an inert gel. Participants in both groups received 10 sessions of individual standardised treatment over 10 weeks. For the following 12 weeks, the active group continued the home exercise programme and the placebo group received no treatment.Main outcome measuresThe primary outcomes were pain and function measured by the shoulder pain and disability index, average pain on movement measured on an 11 point numerical rating scale, and participants' perceived global rating of overall change.Results112 (93%) participants completed the 22 week trial. At 11 weeks no difference was found between groups for change in shoulder pain and disability index (3.6, 95% confidence interval -2.1 to 9.4) or change in pain (0.7, -0.1 to 1.5); both groups showed significant improvements. More participants in the active group reported a successful outcome (defined as "much better"), although the difference was not statistically significant: 42% (24/57) of active participants and 30% (18/61) of placebo participants (relative risk 1.43, 0.87 to 2.34). The active group showed a significantly greater improvement in shoulder pain and disability index than did the placebo group at 22 weeks (between group difference 7.1, 0.3 to 13.9), although no significant difference existed between groups for change in pain (0.9, -0.03 to 1.7) or for the percentage of participants reporting a successful treatment outcome (relative risk 1.39, 0.94 to 2.03). Several secondary outcomes favoured the active group, including shoulder pain and disability index function score, muscle strength, interference with activity, and quality of life.ConclusionA standardised programme of manual therapy and home exercise did not confer additional immediate benefits for pain and function compared with a realistic placebo treatment that controlled for therapists' contact in middle aged to older adults with chronic rotator cuff disease. However, greater improvements were apparent at follow-up, particularly in shoulder function and strength, suggesting that benefits with active treatment take longer to manifest.Trial registrationClinical trials NCT00415441.
Project description:ContextTherapeutic exercise is considered the mainstay in the management of rotator cuff-related shoulder pain (RCRSP). Manual therapy (MT) interventions have also shown to be effective in RCRSP. However, the benefits of adding MT along with exercise interventions for the management of RCRSP remain unknown.ObjectiveTo evaluate the additional benefits of MT with exercise compared with exercise in isolation for the management of RCRSP.Data sourcesA search of PubMed, Scopus, PEDro, and EBSCO from the inception date of each database through April 20, 2022, was conducted for randomized trials comparing the additional effects of MT in exercise interventions compared with exercise alone for pain management and function in patients with RCRSP. Standardized mean differences (SMDs) and 95% CIs were calculated using a random-effects inverse variance model according to the outcome of interest and comparison group. Methodological quality was assessed with PEDro and quality of evidence with the grading of recommendations assessment, development and evaluation approach.Study designMeta-analysis of randomized controlled trials.Level of evidenceLevel 2.ResultsTwelve articles were found eligible and 8 of them demonstrated high methodological quality. Eleven articles were included for quantitative analysis. Pain with movement was not significantly different between MT and exercise versus exercise alone (SMD [95% CI] = -0.15 [-0.41 to 0.12]; I2 = 0%), whereas pain at rest was significantly improved in the groups that used exercise only with a moderate effect size (SMD [95% CI] = 0.47 [0.04 to 0.89]; I2 = 75%). Furthermore, shoulder function was not significantly different between MT and exercise versus exercise alone in the short term (SMD [95% CI] = 0.23 [-0.22 to 0.69]; I2 = 88%) or the long term (SMD [95% CI] = -0.02 [-0.21 to 0.16]; I2 = 2%).ConclusionAdding MT to exercise interventions for the management of RCRSP is not more effective than exercise alone for pain and function in adult patients.
Project description:BackgroundThe tears of rotator cuff is caused by the tears or aseptic inflammation of tendon tissue such as subscapular muscle, supraspinatus muscle, infraspinatus muscle, teres minor muscle, and so on, which make up the rotator cuff. Managements of rotator cuff disease often include acupuncture and manual therapy, usually delivered together. The aim of this review is to assess the effectiveness and safety of such interventions in patients with pain and dysfunction caused by rotator cuff tears.MethodsWe will search the EMBASE, the Cochrane Library, Ovid MEDLINE, PubMed, Web of Science, Chinese Biomedical Literature Database, Chinese National Knowledge Infrastructure, Wanfang Database, the Chongqing VIP, the US National Institute of Health, the NIH clinical registry Clinical Trials, the International Clinical Trials Registry Platform, the Australian New Zealand Clinical Trials Registry and the Chinese clinical registry, from their inception to April 1, 2020. Randomized controlled trials that include patients with rotator cuff tears receiving acupuncture and manual therapy versus a control group will be included. The selection of studies, data extraction and risk of bias assessment will be conducted by 2 independent researchers. A third review author will resolve disagreements. The dichotomous data will be presented as risk ratios with 95% CIs and the continuous data will be presented as weighted mean differences or standardized mean differences with 95% CIs. Evidence quality will be evaluated using the Grading of Recommendations Assessment, Development and Evaluation system.DiscussionThis systematic review will provide updated evidence of various types of acupuncture and manual therapy specifically focuses on its effectiveness and safety for patients' pain and dysfunction caused by rotator cuff tears.Ethics and disseminationEthical approval is not necessary as this review will not require data from individual patients. The results of this will be published through peer-reviewed journal articles or conference presentations.RegistrationOpen Science Framework Preregistration. Registration number 10.17605/OSF.IO/M3NKV.
Project description:Myosteatosis is the pathological accumulation of lipid that occurs in conjunction with atrophy and fibrosis following skeletal muscle injury or disease. Little is known about the mechanisms by which lipid accumulates in myosteatosis, but many studies have demonstrated the degree of lipid infiltration negatively correlates with muscle function and regeneration. Our goal was to identify biochemical pathways that lead to muscle dysfunction and lipid accumulation in injured rotator cuff muscles, a model that demonstrates severe myosteatosis. Adult rats were subjected to a massive tear to the rotator cuff musculature. After a period of either 0 (healthy control), 10, 30, or 60 days, muscles were prepared for RNA sequencing, shotgun lipidomics, metabolomics, biochemical measures, electron microscopy, and muscle fiber contractility. Following rotator cuff injury, there was a decrease in muscle fiber specific force production that was lowest at 30d. There was a dramatic time dependent increase in triacylglyceride content. Interestingly, genes related to not only triacylglyceride synthesis, but also lipid oxidation were largely downregulated over time. Using bioinformatics techniques, we identified that biochemical pathways related to mitochondrial dysfunction and reactive oxygen species were considerably increased in muscles with myosteatosis. Long chain acyl-carnitines and L-carnitine, precursors to beta-oxidation, were depleted following rotator cuff tear. Electron micrographs showed injured muscles displayed large lipid droplets within mitochondria at early time points, and an accumulation of peripheral segment mitochondria at all time points. Several markers of oxidative stress were elevated following rotator cuff tear. The results from this study suggest that the accumulation of lipid in myosteatosis is not a result of canonical lipid synthesis, but occurs due to decreased lipid oxidation in mitochondria. A failure in lipid utilization by mitochondria would ultimately cause an accumulation of lipid even in the absence of increased synthesis. Further study will identify whether this process is required for the onset of myosteatosis.
Project description:IntroductionAtraumatic and degenerative rotator cuff tears are common in individuals over 55 years of age. This condition can have a high impact on social life and is associated with chronic pain, weakness and dysfunction of the upper limb. There is evidence that conservative approaches should be the first treatment option. Conservative treatment usually addresses a variety of therapeutic behaviours without providing scientific arguments for the choice and progression of exercises.ObjectiveTo compare the effects of two different exercise programmes based on the load of the rotator cuff on a population with shoulder pain and rotator cuff tears.Methods and analysisThis is a controlled, randomised, blinded clinical trial. Seventy-eight individuals with shoulder pain and presence of atraumatic and degenerative rotator cuff tear will participate and will be randomly distributed between two groups. The primary outcome will be quality of life (The Western Ontario Rotator Cuff Index), and secondary outcomes will include pain, function (Disabilities of the Arm, Shoulder and Hand), fear avoidance beliefs (Fear Avoidance Beliefs Questionnaire-Brazil), kinesiophobia (Tampa Scale), Pain Catastrophizing Scale, muscle strength of abductors, external and internal rotators of the shoulder, range of motion of arm elevation and patient satisfaction. The treatment will be performed for 12 weeks (2 x/week) acording to the selected group (Rotator Cuff Unloading x Rotator Cuff Loading Exercise Programme).Ethics and disseminationThe study protocol was approved by the Institutional Review Board. The findings of the trial will be disseminated through peer-reviewed journals and scientific conferences.Trial registration numberNCT03962231.
Project description:Irreparable posterior-superior rotator cuff tear is encountered quite often in clinical practice. Bridging the tendon defect with various materials is reasonable. However, optimal bridging structures and techniques are still being pursued. We introduce a rotator cuff bridging technique, rooting rotator cuff reconstruction. In this technique, autogenous tendon is used to make grafts. On the medial side, the graft tendons are suspended on the rotator cuff tendon. On the lateral side, the graft tendons are placed into tunnels through the tuberosities. The most critical steps of this technique are properly fabricating the humeral tunnels and suspending the graft tendons onto the rotator cuff tendon. We believe this technique will shed light on rotator cuff reconstruction.