Distribution of bone and tissue morphological properties related to subacromial space geometry in a young, healthy male population

Chopp-Hurley, Jaclyn N.; O'Neill, John; Dickerson, Clark R.

doi:10.1007/s00276-015-1529-1

Cited by 7 publications

(4 citation statements)

References 37 publications

(47 reference statements)

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“…The theory is that these measurement parameters show a reduced subacromial space. Chopp-Hurley et al reported that there is poor to moderate correlation between these morphological characteristics and subacromial width 36 . Balke et al showed in their studies that acromion morphology in degenerative RCTs differs from traumatic RCTs.…”

Section: Discussionmentioning

confidence: 99%

“…Chopp-Hurley et al reported that there is poor to moderate correlation between these morphological characteristics and subacromial width. 36 Balke et al showed in their studies that acromion morphology in degenerative RCTs differs from traumatic RCTs. They reported that the subacromial space narrowed in degenerative but remained intact in traumatic tears.…”

Section: Discussionmentioning

confidence: 99%

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Subacromial space volume in patients with rotator cuff tear: The effect of surgical repair

Pepe

Kocadal

Gunes

et al. 2018

Acta Orthopaedica et Traumatologica Turcica

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ObjectiveThe aim of this study was to evaluate the effect of the rotator cuff tear repair on subacromial space volume.MethodsWe retrospectively identified 21 eligible patients (5 males and 16 females; mean age: 56.4 (range; 46–71) years) who had shoulder arthroscopy for unilateral full-thickness small to medium rotator cuff tear and normal controlateral shoulder joint. The mean follow-up time was 16.1 (range; 12–25) months. Preoperative and postoperative 1 year bilateral shoulder MRIs and Constant scores were reviewed. Subacromial volume was calculated by using Osirix software. Pre-, postoperative and healthy side (contralateral control group) subacromial volumes were recorded. Paired sample and t-tests were used to compare the pre- and postoperative groups. Independent sample t-tests were used to compare the healthy and pre- and postoperative groups. The correlation between the changes in the subacromial volume and the shoulder Constant score were analyzed using Pearson correlation analyses.ResultsThe mean subacromial volume of the preoperative group was 2.95 cm3 (range; 1.53–4.23) and the postoperative group was 3.59 cm3 (range; 2.12–4.84). The volume increase was statistically significant (p < 0.05). The mean subacromial volume of the control group was 3.93 cm3 (range; 2.77–5.03), and the difference between the preoperative group and the control group was statistically significant. There was no significant difference found between the postoperative group and the control group (p = 0.156). There was no significant correlation found between the volume and the constant score changes (r = 0.170, p = 0.515).ConclusionThe subacromial space volume significantly decreases in full-thickness rotator cuff tears smaller than 3 cm and the surgical repair increases the subacromial volume significantly.Level of evidenceLevel IV; Diagnostic Study.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Subacromial space volume in patients with rotator cuff tear: The effect of surgical repair

Pepe

Kocadal

Gunes

et al. 2018

Acta Orthopaedica et Traumatologica Turcica

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“…The authors attributed this finding to age-related degeneration. Bone and soft tissue geometry are also highly variable in the population, with research showing that SAS-reducing bony morphologic variants exist even among a young healthy population (Chopp-Hurley, O’Neill, & Dickerson, 2016). As well, the multiple scapular muscle attachments vary across persons, creating variable force production capabilities (Chopp-Hurley et al, 2014; Picco et al, 2010).…”

Section: Muscular Fatigue As a Candidate Precipitator Of Occupational...mentioning

confidence: 99%

“…Small changes in SAS width can have important clinical implications. The occupation ratios of the combined thickness of subacromial tissue divided by the minimal SAS ranged from 21.6% to 108.9% (Chopp-Hurley, O’Neill, & Dickerson, 2016), indicating that even small changes to the width of the space should be considered. Conversely, Maenhout et al (2015) examined SAS width in overhead athletes using ultrasound and found increased SAS width following a fatigue protocol.…”

Section: Muscular Fatigue As a Candidate Precipitator Of Occupational...mentioning

confidence: 99%

Between Two Rocks and in a Hard Place: Reflecting on the Biomechanical Basis of Shoulder Occupational Musculoskeletal Disorders

2020

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Objective The aim was to review the biomechanical origins of occupational shoulder damage, while considering the complexity of shoulder mechanics and musculoskeletal consequences of diverse task demands. Background Accessible measures of physical exposures are the primary focus of occupational shoulder assessments and analyses. This approach has led to guidelines and intervention strategies that are often inadequate for mitigating shoulder disorders amongst the complexity of modern workplace demands. Integration of complex shoulder mechanics into occupational assessments, analyses, and interventions is critical for reducing occupational shoulder injury risk. Method This narrative review describes shoulder biomechanics in the context of common injury mechanisms and consequent injuries, with a particular focus on subacromial impingement syndrome. Several modulators of shoulder injury risk are reviewed, including fatigue, overhead work, office ergonomics considerations, and pushing and pulling task configurations. Results Relationships between work requirements, muscular demands, fatigue, and biomechanical tissue loads exist. This review highlights that consideration of specific workplace factors should be integrated with our knowledge of the intricate arrangement and interpersonal variability of the shoulder complex to proactively evaluate occupational shoulder demands and exposures. Conclusion A standard method for evaluating shoulder muscle exposures during workplace tasks does not exist. An integrated approach is critical for improved work design and prevention of shoulder tissue damage and accompanying disability. Application This review is particularly relevant for researchers and practitioners, providing guidance for work design and evaluation for shoulder injury prevention by understanding the importance of the unique and complex mechanics of the shoulder.

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Anatomical variations of the acromial and coracoid process: clinical relevance

et al. 2020

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Distribution of bone and tissue morphological properties related to subacromial space geometry in a young, healthy male population

Cited by 7 publications

References 37 publications

Subacromial space volume in patients with rotator cuff tear: The effect of surgical repair

Subacromial space volume in patients with rotator cuff tear: The effect of surgical repair

Between Two Rocks and in a Hard Place: Reflecting on the Biomechanical Basis of Shoulder Occupational Musculoskeletal Disorders

Anatomical variations of the acromial and coracoid process: clinical relevance

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