Isokinetic and isometric measurement of strength of external rotation and abduction of the shoulder.

Kuhlman, J. R.; Iannotti, Joseph P.; Kelly, Martin J.; Riegler, Francis X.; Gevaert, M. L.; Ergin, T. M.

doi:10.2106/00004623-199308000-00018

Cited by 39 publications

(1 citation statement)

References 2 publications

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“…In terms of the relative contribution of the rotator cuff muscles at rest (isometric) or at motion (isokinetic) it, studies have shown that at rest in the neutral position, the subscapularis contributes to about half the strength with the infraspinatus also contributing just over 22% [5] . Isokinetic analysis of the muscles showed the supraspinatus and infraspinatus contributing to half the strength during abduction and external rotation [6] . USG is used to diagnose rotator cuff tendinopathy and shoulder impingements in a fast, dynamic, real-time manner.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of ultrasonography and magnetic resonance imaging for the evaluation of rotator cuff injuries

Mehta¹,

Sharma²,

Garg³

et al. 2022

Int. J. Orthop. Sci.

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Introduction:The Rotator cuff is a group of muscles and tendons which provide strength and stability during shoulder motion and includes Subscapularis, Supraspinatus, Infraspinatus & Teres minor muscles and their tendons. There are numerous causes of shoulder disability, although Rotator cuff pathologies are most common cause of shoulder disability, Impingement syndrome, Bicipital tendinopathy, Dislocation, Adhesive capsulitis and Glenoid labral tears are other causes that can lead to shoulder pain and restriction of mobility of the shoulder Objectives 1. To study the spectrum of rotator cuff pathologies encountered on Ultrasound & Magnetic resonance imaging. 2. To correlate Ultrasound and Magnetic resonance imaging findings. Material and Methods: Present study was a single centric, cross sectional prospective, observational, hospital-based study in which 40 patients underwent ultrasound and MRI of the shoulder and findings of both were compared. Results: Average age group of the study population was 49.77 years. The gender distribution in our study showed a male preponderance, of 16 males [53.3%] and 14 female [46.7%]. Study showed out of 40 patients, 21 patients (70%) had disease of the shoulder on right side while 9 patients (30%) had disease on left side. All of the patients in our study were right-handed. For partial thickness tears USG had a sensitivity of 92.86%, specificity of 100%. In cases with full thickness tears, 100% sensitivity and 96.3% specificity was achieved. Conclusion: Based on our findings, USG can be used as a first line modality while investigating a case of shoulder joint pain to rule out rotator cuff tears and MRI should be used as second line non-invasive test to confirm the diagnosis & to rule out associated injuries. Ultrasound is nearly as efficient as MRI and is practical, well accepted, and accurate non-invasive imaging technique in patients presenting with shoulder pain.

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Section: Introductionmentioning

confidence: 99%

A comparative study of ultrasonography and magnetic resonance imaging for the evaluation of rotator cuff injuries

Mehta¹,

Sharma²,

Garg³

et al. 2022

Int. J. Orthop. Sci.

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The efficacy of conservative treatment in patients with full-thickness rotator cuff tears

Baydar

Akalin

et al. 2008

Rheumatol Int

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Rotator cuff tears are a common cause of shoulder pain and disability. Although many studies have reported about the surgical results of full-thickness tears of the rotator cuff, there are few studies about the efficacy of conservative treatment. The aim of this study was to investigate the efficacy of conservative treatment in patients with full-thickness rotator cuff tears by using objective and subjective measurements. Twenty patients with full-thickness rotator cuff tears were included in the study. Outcome measures were range of motion, pain and function according to the shoulder index of the American Shoulder and Elbow Surgeons (ASES), Constant score, Short-Form 36 Health Survey (SF-36), isokinetic shoulder strength, and patient response. Patients were assessed at baseline and after 6 months. In addition, patients were contacted by telephone at 1 year and at 3 years for functional assessment according to ASES, and patient response. The treatment protocol included activity modification, oral nonsteroidal antiinflammatory medications, physical modalities, and a specific exercise program. Statistically significant improvements were obtained in range of motion, pain and function scores according to ASES, Constant score, SF-36 scores, and isokinetic strength (P < 0.05). At the 6-month evaluation, 11 patients (55%) reported that they were "much better", and 9 patients (45%) "better". Conservative treatment of full-thickness rotator cuff tears yields satisfactory results both subjectively and objectively.

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Early recovery of isometric shoulder muscle strength after open acromioplasty in stage II impingement syndrome

Hyvönen

Flinkkilä

Jalovaara

2000

Archives of Orthopaedic and Trauma Surgery

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The recovery of shoulder muscle strength after open acromioplasty was evaluated in 48 patients (27 male, 21 female, mean age 44.3 years) who had undergone open acromioplasty because of stage II impingement syndrome. The isometric strengths of flexion, abduction and external rotation were measured before the operation and at 3, 6 and 12 months postoperatively. The mean preoperative flexion strength of the involved shoulder was 72.6% of that of the uninvolved shoulder, and this increased to 77.1% by 3 months post operation, to 88.3% at 6 and to 88.3% at 12 months. Corresponding abduction strengths were 68.4%, 80.4%, 88.7% and 91.0% and the external rotation strengths were 75.1%, 77.4%, 95.1% and 93.5%, respectively. These recoveries were markedly improved when the cases with poor subjective results at 1 year were not considered. The low preoperative strengths were more pronounced in women than in men, but recovery was better in women. It is concluded that shoulder muscle strengths recover to near normal in 1 year after open acromioplasty.

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Isokinetic and isometric measurement of strength of external rotation and abduction of the shoulder.

Cited by 39 publications

References 2 publications

A comparative study of ultrasonography and magnetic resonance imaging for the evaluation of rotator cuff injuries

A comparative study of ultrasonography and magnetic resonance imaging for the evaluation of rotator cuff injuries

The efficacy of conservative treatment in patients with full-thickness rotator cuff tears

Early recovery of isometric shoulder muscle strength after open acromioplasty in stage II impingement syndrome

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