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Background Four-part fractures of the proximal humerus account for 3% of all humeral fractures and are regarded as the most difficult fractures to treat in the elderly. Various authors recommend nonoperative treatment or hemiarthroplasty, but the literature is unclear regarding which provides better quality of life and function. Questions/purposes We therefore performed a randomized controlled trial to compare (1) function, (2) strength, and (3) pain and disability in patients 65 years and older with four-part humeral fractures treated either nonoperatively or with hemiarthroplasty. Methods We randomly allocated 50 patients to one of the two approaches. There were no differences in patient demographics between the two groups. The Constant-Murley score was the primary outcome measure. Secondary outcome measures were the Simple Shoulder Test, abduction strength test as measured by a myometer, and VAS scores for pain and disability. All patients were assessed at 12 months. Results We found no between-group differences in Constant-Murley and Simple Shoulder Test scores at 3- and 12-months followup. Abduction strength was better at 3 and 12 months in the nonoperatively treated group although the nonoperatively treated patients experienced more pain at 3 months; this difference could not be detected after 12 months. Conclusions We observed no clear benefits in treating patients 65 years or older with four-part fractures of the proximal humerus with either hemiarthroplasty or nonoperative treatment. Level of Evidence Level I, therapeutic study. See Instructions for Authors for a complete description of levels of evidence.

Adhesive Capsulitis results in a progressive contraction of the Glenohumeral joint capsule limiting active and passive range of motion, leading to functional disabilities. Joint mobilization plays a key role in the physical therapy treatment of Adhesive Capsulitis. A relatively new technique, Gong’s Mobilization, has been introduced for the treatment of Adhesive Capsulitis. It is focused on the correction of positional faults through controlled dynamic motion of the Glenohumeral joint. The mainstay of this clinical trial is a comprehensive comparative evaluation of MWM with Gong’s Mobilization as it remains insufficiently explored. The objective of this clinical trial was to compare the effects of Gong’s Mobilization and Mobilization with Movement on pain, range of motion and functional disability in patients with Adhesive Capsulitis. In this triple blinded randomized clinical trial, sixty patients of Adhesive Capsulitis were enrolled within group A (Gong’s Mobilization) and group B (Mobilization with Movement). The treatment protocol covered 12 treatment sessions for 4 weeks. Numeric Pain Rating Scale (NPRS), Goniometer, and Urdu version of Shoulder Pain and Disability Index (U-SPADI) were used to assess the pain, range of motion and functional status respectively. These outcome measures were assessed at baseline, after 6 treatment sessions (2 weeks) and conclusively after 12 treatment sessions (4 weeks). For data analysis, within the group differences were measured by Repeated Measure ANOVA and across the group differences were measured by independent t test. A significant difference within the mean values of baseline, week 2 and week 4 NPRS, ROM, and SPADI score was observed in both study groups ( p  < 0.001). Results of independent t test used to calculate across the group differences indicated that Gong’s Mobilization was more effective in reducing disability (SPADI)( p  < 0.001) and improving ROM( p  < 0.001), meanwhile both groups were equally effective in reducing NPRS scores( p  = 0.78). Moreover, a medium to large effect size was also observed for all the outcomes, pain(d = 0.5), ROM (d = 0.5–2.7), SPADI(d = 0.5). It was concluded that Gong’s Mobilization is more effective than Movement with Mobilization. Following four weeks of treatment, it pronounced statistically significant and clinically relevant results in improving pain, ROM and functional status of patients with Adhesive Capsulitis. Trial Registration Trial was registered in IRCT (Trial registration number: IRCT20190717044238N4 Trial Registration Date: 01-03-2023).

Background Adhesive capsulitis (AC) is a progressive inflammatory condition of the shoulder that causes functional limitations and leads to long-term disability. The study aimed to elicit the effectiveness of proprioceptive neuromuscular facilitation (PNF) compared to standard physiotherapy approaches on AC. Methods An assessor-blinded single-centre randomised control trial (RCT) was carried out on 80 AC patients between May 2022 and December 2023 in Bangladesh. Random assigned and concealed allocated patients were recruited equally ( n  = 40) to each PNF and conventional capsular stretching group. The experimental group received a PNF approach, and the control group received capsular stretching to the affected shoulder for 24 sessions in 6 weeks. Both groups received electrical modalities as standard treatment. The primary outcome was pain measured by the numeric pain rating scale (NPRS) and range of motion in a universal goniometer. The secondary outcome was functional limitation measured by the shoulder pain and disability index (SPADI). As per the distribution of data, non-parametric tests were employed to analyse the superiority between and within groups with intention-to-treat analysis. Results Baseline compatibility was noted in all the key variables ( p  > 0.05). Both PNF and capsular stretching had a decrease in pain compared to baseline in all capsular pattern positions ( p  < 0.001), and PNF had more significant improvement compared to control ( p  < 0.001). Both groups had equal improvement in shoulder ROM ( p  < 0.001) except abduction ( p  < 0.05). Both groups had improvements in disability ( p  < 0.05), and PNF had statistical superiority of improvement ( p  < 0.001). Conclusions The findings of this study support the potential of PNF intervention for 6 weeks as a treatment for shoulder adhesive capsulitis, showing improvements in pain, ROM and functional disability. However, further multicentre trials with a follow-up design are needed to fully understand the superiority of PNF on shoulder AC, encouraging continued engagement in this area of research. Trial registration The Australian New Zealand Clinical Trial Registry (ACTRN12621001299897). Registered on 27 September 2021, prospectively registered.

The assessment of the six-week influence of Kinesio Taping combined with a rehabilitation on selected ultrasonography measurements, the level of disability, and the quality of life in patients with rotator cuff lesions. 60 participants were randomly assigned into a taping group (KT combined with a six-week rehabilitating protocol) and a control group (only rehabilitation protocol). In all patients the following assessments were performed twice: USG, UEFI and NHP questionnaires. In the examination of the subacromial space and the subacromial bursa in the taping group, no statistical significance was observed. A statistically significant change in the thickness of the muscles was obtained only for the thickness of the infraspinatus in the taping group. A statistically significant change was obtained in the assessment of tendinopathy only for the supraspinatus muscle in both groups. Within both groups a statistically significant difference was observed in the average UEFI and NHP scores; however, the differences in the scores obtained between the groups were not statistically significant. The use of KT with a rehabilitation program did not yield statistically significantly better results in the improvement of selected shoulder region indicators, the function of the upper limb and the quality of life.

Round shoulder posture (RSP) may exaggerate symptoms of subacromial impingement. The effects of kinesiology taping with exercise on posture, pain, and functional performance were investigated in subjects with impingement and RSP. This study was a single-blinded randomized controlled trial. An outpatient rehabilitation clinic in a university hospital. Thirty-four subjects with subacromial impingement and RSP. Kinesiology taping with and without tension was applied 2 times per week for 4 weeks. Both groups also performed strengthening and stretching exercises 3 times per week for 4 weeks. The pain level, shoulder angle and self-reported score were evaluated at pre-intervention, 2-week post-intervention and 4-week post-intervention time points. Functional performance improved after intervention in both groups (p = 0.027). A greater decrease in pain level was related to better functional performance of the shoulder in both groups (r = −0.760 and −0.674; p < 0.010). Moderate correlations were found for posture and functional performance of the shoulder in the intervention group (0.48). Four weeks of strengthening and stretching exercises with or without kinesiology taping improved functional performance in subjects with impingement and RSP. Improvement in clinical symptoms was related to better performance of posture. •Four weeks of strengthening and stretching exercises improves functional performance in subjects with impingement and RSP.•Kinesiology taping did not demonstrate an additional effect on RSP in our sample.•For subjects with SIS and RSP, improvement in clinical symptoms like pain and functional activity are related to better performance of posture.

Background Proximal humeral fractures are mainly associated with osteoporosis and are becoming more common with the aging of our society. The best surgical approach for internal fixation of displaced proximal humeral fractures is still being debated. Questions/purposes In this prospective randomized study, we aimed to investigate whether the deltoid-split approach is superior to the deltopectoral approach with regard to (1) complication rate; (2) shoulder function (Constant score); and (3) pain (visual analog scale [VAS]) for internal fixation of displaced humeral fractures with a polyaxial locking plate. Methods We randomized 120 patients with proximal humeral fractures to receive one of these two approaches (60 patients for each approach). We prospectively documented demographic and perioperative data (sex, age, fracture type, hospital stay, operation time, and fluoroscopy time) as well as complications. Followup examinations were conducted at 6 weeks, 6 months, and 12 months postoperatively, including radiological and clinical evaluations (Constant score, activities of daily living, and pain [VAS]). Baseline and perioperative data were comparable for both approaches. The sample size was chosen to provide 80% power, but it reached only 68% as a result of the loss of followups to detect a 10-point difference on the Constant score, which we considered the minimum clinically important difference. Results Complications or reoperations between the approaches were not different. Eight patients in the deltoid-split group (14%) needed surgical revisions compared with seven patients in the deltopectoral group (13%; p = 1.00). Deltoid-split and deltopectoral approaches showed similar Constant scores 12 months postoperatively (Deltoid-split 81; 95% confidence interval [CI], 74–87 versus deltopectoral 73; 95% CI, 64–81; p = 0.13), and there were no differences between the groups in terms of pain at 1 year (deltoid-split 1.8; 95% CI, 1.2–1.4 versus deltopectoral 2.5; 95% CI, 1.7–3.2; p = 0.14). No learning-curve effects were noted; fluoroscopy use during surgery and function and pain scores during followups were similar among the first 30 patients and the next 30 patients treated in each group. Conclusions The treatment of proximal humeral fractures with a polyaxial locking plate is reliable using both approaches. For a definitive recommendation for one of these approaches, further studies with appropriate sample size are necessary. Level of Evidence Level II, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.

Shoulder disorders, including frozen shoulder resulting from stroke-induced hemiplegia, significantly reduce a patient’s ability to perform activities of daily living, thereby necessitating repeated rehabilitation. Consequently, extensive research has been conducted on rehabilitation robots to assist in upper-limb motor recovery. The shoulder moves according to the scapulohumeral rhythm. Considering the biomechanical characteristics of the shoulder joint, the rehabilitation robot was designed to replicate a similar kinematic environment using actuators and linkages that emulate the structures of the upper arm, shoulder, and clavicle. To ensure precise operation, the kinematic accuracy of the robot was pre-evaluated. Kinematic analyses were conducted using MATLAB, and the results were compared with coordinate data from the mechanical design to evaluate positional accuracy. In addition, the convergence and accuracy of joint-angle estimation for target positions were analyzed. The forward kinematic analysis revealed that the average positional error between the measured and target coordinates ranged from 0.5% to 2.8%, with the Base Motor–Back Motor segment exhibiting the highest error (2.8%). The inverse kinematic analysis demonstrated stable convergence to the target positions through iterative computations using the Gauss–Newton method, confirming that the actual motion could be accurately reproduced within the designed range of motion.

Background Rotator cuff tear is a common cause of shoulder disability and results in patients predominantly complaining of pain and loss of motion and strength. Traumatic rotator cuff tears are typically managed surgically followed by ~ 20 weeks of rehabilitation. However, the timing and intensity of the postoperative rehabilitation strategy required to reach an optimal clinical outcome is unknown. Early controlled and gradually increased tendon loading has been suggested to positively influence tendon healing and recovery. The aim of this trial is therefore to examine the effect of a progressive rehabilitation strategy on pain, physical function and quality of life compared to usual care (that limits tendon loading in the early postoperative phase) in patients who have a rotator cuff repair of a traumatic tear. Methods The current study is a randomized, controlled, outcome-assessor blinded, multicenter, superiority trial with a two-group paralleled design. A total of 100 patients with surgically repaired traumatic rotator cuff tears will be recruited from up to three orthopedic departments in Denmark, and randomized to either a progressive early passive and active movement program or a limited early passive movement program (usual care). The primary outcome measure will be the change from pre-surgery to 12 weeks post-surgery in the Western Ontario Rotator Cuff Index questionnaire. Secondary outcomes include the Disabilities Arm, Shoulder and Hand questionnaire (DASH), range of motion, strength and tendon healing characteristics from ultrasound measurements at 12 months follow up. Discussion We hypothesized that patients who receive the progressive rehabilitation strategy will benefit more with respect to pain reduction, physical function and quality of life than those who receive care as usual. If this is confirmed our study can be used clinically to enhance the recovery of patients with traumatic rotator cuff tear. Trial registration ClinicalTrials.gov, NCT02969135 . Registered on 15 November 2016.

Background Shoulder impingement syndrome is one of the most common causes of shoulder pain, accounting for approximately 30% of all shoulder pain. Approximately 35% of patients with shoulder impingement syndrome are refractory to conservative treatment. For patients who fail conservative treatment, there is no established treatment to successfully treat their chronic pain. Prior randomized control trials have demonstrated efficacy for the use of a single lead intramuscular peripheral nerve stimulation of the axillary nerve at the motor points of the deltoid muscle for treatment of hemiplegic shoulder pain. This is the first controlled trial to utilize the same novel technology to treat shoulder impingement syndrome outside of the stroke population. Methods This is a dual-site, placebo-controlled, double-blinded, randomized control trial. Participants will be randomized to two treatment groups. The intervention group will be treated with active peripheral nerve stimulation of the axillary nerve of the affected shoulder and the control group will be treated with sham peripheral nerve stimulation of the axillary nerve of the affected shoulder. Both groups will receive a standardized exercise therapy program directed by a licensed therapist. Discussion This study protocol will allow the investigators to determine if this novel, non-pharmacologic treatment of shoulder pain can demonstrate the same benefit in musculoskeletal patients which has been previously demonstrated in the stroke population. Trial registration Clinicaltrials.gov, NCT03752619 . Registered on 26 November 2018.

To determine whether subacromial space (i.e. acromiohumeral distance; AHD, and/or occupation ratio percentage) differs between people with subacromial pain syndrome (SAPS) and those without. To investigate whether there is a correlation between subacromial space and pain or disability in adults with SAPS and whether temporal changes in pain or disability are accompanied by changes in subacromial space. Systematic review and meta-analysis. Fifteen studies with a total of 775 participants were included. Twelve studies were of high quality and three studies were of moderate quality using the modified Black and Downs checklist. There was no between group difference in AHD in neutral shoulder position (mean difference [95% CI] 0.28 [−0.13 to 0.69] mm), shoulder abduction at 45° (−0.02 [−0.99 to 0.96] mm) or 60° (−0.20 [−0.61 to 0.20] mm). Compared to the control group, a greater occupation ratio in neutral shoulder position was demonstrated in participants with SAPS (5.14 [1.87 to 8.4] %). There was no consistent pattern regarding the correlation between AHD and pain or disability in participants with SAPS, and no consistent increase in subacromial space with improvement in pain or disability over time. The results suggest that surgical (e.g. sub-acromial decompression) and non-surgical (e.g. manual therapy, taping, stretching and strengthening) management of subacromial pain syndrome should not focus solely on addressing a potential decrease in subacromial space, but also on the importance of other biopsychosocial factors.