Isokinetic characteristics of shoulder rotators in patients with adhesive capsulitis

Lin, Hsiung Cheng; Li, Jing Sheng; Lo, Sui Foon; Shih, Yi Fen; Lo, Chen Yu; Chen, Shu-Ya

doi:10.2340/16501977-0378

Cited by 19 publications

(9 citation statements)

References 19 publications

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“…Because most functional activities are dynamic, evaluating isokinetic shoulder strength may be more appropriate when relating strength to functional performance and clinical outcome. However, data for isokinetic strength measurements around the shoulder are available only for normal healthy subjects [7], patients after open fixation of glenoid rim fractures [33], open [1, 10] and arthroscopic anterior stabilization [15, 21], rotator cuff surgery [4, 11, 14, 34, 43], with adhesive capsulitis [26, 27, 41], subacromial impingement [16, 24, 30], and pectoralis major muscle rupture [17], but not for patients with a reverse shoulder prosthesis.…”

Section: Introductionmentioning

confidence: 99%

Are Shoulders with A Reverse Shoulder Prosthesis Strong Enough? A Pilot Study

Alta

Veeger

Janssen

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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BackgroundIt has been suggested that limited active ROM of reverse shoulder prostheses relates to lack of strength. However, the postoperative strength has not been quantified.Questions/purposesWe therefore measured joint torques in patients with reverse shoulder prostheses and correlated torques with functional scores.MethodsWe recruited 33 patients (age, 72 ± 8 years) with a reverse prosthesis (37 shoulders, 21 primary and 16 revisions). We obtained Constant-Murley, DASH, and Simple Shoulder Test ([D]SST) scores, and performed two isokinetic protocols (abduction/adduction and external/internal rotation) at 60° per second. Minimum followup was 4 months (average, 23 months; range, 4–63 months).ResultsTwenty-three patients (24 shoulders; 13 primaries, 11 revisions) were able to perform at least one of the defined tasks. Mean abduction and adduction torques were 15 Nm ± 7 Nm and 16 Nm ± 10 Nm (19%–78% of normal shoulders). External and internal rotation tasks could be performed by only 13 patients (14 shoulders; nine primary, five revisions) generating 9 Nm ± 4 Nm and 8 Nm ± 3 Nm, respectively (13%–71% of normal shoulders). We found moderate correlations between Constant-Murley, DASH and (D)SST (D = Dutch translation) scores and abduction and external rotation.ConclusionsPatients with a reverse prosthesis had reduced strength when compared with normal values reported in the literature (only 65% of patients could perform the protocol). This effect was greatest for external rotation and might explain clinical outcomes with which a moderately strong relationship was observed. Our observations suggest limited strength is a major factor in reduced ROM.

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Section: Introductionmentioning

confidence: 99%

Are Shoulders with A Reverse Shoulder Prosthesis Strong Enough? A Pilot Study

Alta

Veeger

Janssen

et al. 2012

Clinical Orthopaedics &Amp; Related Research

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“…FSS patients have an increasingly severe shoulder pain and localized discomfort near the insertion of the deltoid muscle, limitation and pain in the active range of motion (AROM) and passive range of motion (PROM) especially in elevation and external rotation, and diminishing shoulder function in the sixth decade of life [27]. Shoulder girdle muscle strength has been found to be decreased in FSS patients [14,15,18].…”

Section: Introductionmentioning

confidence: 99%

Shoulder muscle electromyographic activity and stiffness in patients with frozen shoulder syndrome: six-month follow-up study

Sokk

Gapeyeva

Ereline

et al. 2013

AKUT

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Th is study evaluated changes in shoulder muscle isometric endurance, deltoideus and trapezius muscle electromyographic activity (EMG) and stiff ness in patients with frozen shoulder syndrome (FSS) before and aft er manipulation under general anaesthesia (MUA). Eighteen FSS patients with mean age of 53±9 years participated. Isometric endurance of shoulder muscles was characterized by endurance test time and deltoideus and trapezius muscles EMG activity that were assessed by electromyograph during weight holding in hand until exhaustion. Stiff ness of deltoideus and trapezius muscles was assessed by myotonometer (MYOTON-3). Patients were screened by self-administered shoulder rating questionnaire (SRQ). Data was collected before one and six months aft er MUA. Six months aft er MUA endurance test time remained reduced (p<0.05) for the involved extremity as compared with the uninvolved extremity. Deltoideus and trapezius muscle EMG activity decreased (p<0.05) at the end of the endurance test, whereas in the beginning of the endurance test the trapezius muscle EMG was lower (p<0.05) for the involved extremity. Deltoideus and trapezius muscle stiff ness did not diff er (p<0.05). SRQ score points decreased (p<0.05) one and six months aft er MUA. In conclusion, six months aft er MUA the shoulder muscle EMG activity and stiff ness for the involved extremity was normalized in patients with FSS.

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“…A previous study demonstrated that 5–6 weeks of immobilization facilitated a significant decrease in muscle strength and cross-sectional fiber areas ( 8 ). Moreover, muscle strength of the external rotators in the shoulders affected by adhesive capsulitis significantly declined ( 9 ). Rotator cuff strengthening exercises have shown positive effects on improving the range of motion and functional outcome ( 10 ).…”

Section: Introductionmentioning

confidence: 99%

The Association between the Magnetic Resonance Imaging Findings of Adhesive Capsulitis and Shoulder Muscle Fat Quantification Using a Multi-Echo Dixon Method

Yoon

Hong

et al. 2018

Korean J Radiol

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ObjectiveTo investigate the association between the magnetic resonance imaging (MRI) findings of adhesive capsulitis and shoulder muscle fat percentages using a multi-echo Dixon method.Materials and MethodsTwenty-four patients with clinical diagnoses of adhesive capsulitis and either intact rotator cuffs or Ellman grade 1 partial tears as indicated by MRI scans were included. Two radiologists independently evaluated MRI scans of adhesive capsulitis as follows: presence or absence of axillary recess capsular and extracapsular hyperintensities; thickness of the coracohumeral ligament; thickness of abnormal rotator interval soft tissue; and thickness of glenoidal/humeral axillary recess capsules. Fat quantifications of the supraspinatus, infraspinatus, teres minor, subscapularis, teres major and posterior deltoid muscles were performed using multi-echo Dixon imaging at three locations. Inter-rater agreement was assessed. Differences in fat percentages were assessed and correlations between fat percentages and quantitative measurements were evaluated.ResultsThe fat percentage of the supraspinatus was significantly higher in patients with extracapsular hyperintensity (present, 3.00 ± 1.74%; absent, 1.81 ± 0.80%; p = 0.022). There were positive correlations between the fat percentage of the teres minor and the thicknesses of the abnormal rotator interval soft tissue (r = 0.494, p = 0.014) and the glenoidal axillary recess capsule (r = 0.475, p = 0.019). After controlling for the effects of age, sex and clinical stage, the relationship between the teres minor fat percentage and the thickness of the abnormal rotator interval soft tissue was statistically significant (r = 0.384, p = 0.048). Inter-rater agreement was almost perfect for fat quantification (intraclass correlation coefficients [ICC] > 0.9) and qualitative analyses (k = 0.824), but were variable for quantitative measurements (ICC, 0.170–0.606).ConclusionSeveral MRI findings of adhesive capsulitis were significantly related to higher fat percentages of shoulder muscles.

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Isokinetic characteristics of shoulder rotators in patients with adhesive capsulitis

Cited by 19 publications

References 19 publications

Are Shoulders with A Reverse Shoulder Prosthesis Strong Enough? A Pilot Study

Are Shoulders with A Reverse Shoulder Prosthesis Strong Enough? A Pilot Study

Shoulder muscle electromyographic activity and stiffness in patients with frozen shoulder syndrome: six-month follow-up study

The Association between the Magnetic Resonance Imaging Findings of Adhesive Capsulitis and Shoulder Muscle Fat Quantification Using a Multi-Echo Dixon Method

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