Acromial morphology is not associated with rotator cuff tearing or repair healing

Chalmers, Peter N.; Beck, Lindsay; Miller, Matt; Kawakami, Jun; Dukas, Alex G.; Burks, Robert T.; Greis, Patrick E.; Tashjian, Robert Z.

doi:10.1016/j.jse.2019.12.035

Cited by 28 publications

(34 citation statements)

References 50 publications

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“…MRI is largely comparable to CT scan for evaluation of the glenoid in less extreme Walch glenoids [ 19 ] and accuracy in acromial morphology measurement [ 20 ]. MRI examinations were accomplished using a 1.5-T unit (Intera-Power, Philips Medical Systems, Best, the Netherlands).…”

Section: Methodsmentioning

confidence: 99%

The association between acromial anatomy and articular-sided partial thickness of rotator cuff tears

Liu

Miao

Wang

et al. 2021

BMC Musculoskelet Disord

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Background Acromial anatomy has been found to be correlated with degenerative full-thickness rotator cuff tears in current studies. However, research on the relationship between acromial anatomy and articular-sided partial thickness of rotator cuff tears (PTRCTs) is still lacking. The purpose of this study was to evaluate whether these imaging graphic parameters exhibit any association between acromial anatomy and degenerative articular-sided PTRCTs. Methods Between January 2016 and December 2018, a total of 91 patients without a history of trauma underwent arthroscopy as an articular-sided PTRCT group. In the control group, with age- and sex-matched patients, we selected 91 consecutive outpatient patients who underwent shoulder magnetic resonance imaging (MRI) because of shoulder pain and an MRI diagnosis of only synovial hyperplasia and effusion. MRI was used to measure the acromial type, acromiohumeral distance (AHD), lateral acromial angle (LAA), acromion index (AI), and critical shoulder angle (CSA) by 2 independent observers. Results The acromion type, AHD and LAA showed no difference between degenerative articular-sided PTRCTs and controls (P = 0.532, 0.277, and 0.108, respectively). AI and CSA were significantly higher in degenerative articular-sided PTRCTs (P = 0.002 and 0.003, respectively). A good correlation was found between AI and CSA to measurement(Pearson correlation coefficient = 0.631). Conclusions Our study revealed that higher AI and CSA were found in degenerative articular-sided PTRCTs. Acromial anatomy with a large acromial extension was associated with the occurrence of degenerative articular-sided PTRCTs.

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Section: Methodsmentioning

confidence: 99%

The association between acromial anatomy and articular-sided partial thickness of rotator cuff tears

Liu

Miao

Wang

et al. 2021

BMC Musculoskelet Disord

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“…Prior research performed at our institution has used these groups and have previously been described. 3 , 4 …”

Section: Methodsmentioning

confidence: 99%

Footprint size matters: wider coronal greater tuberosity width is associated with increased rates of healing after rotator cuff repair

et al. 2021

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Background The purpose of this study was to determine whether greater tuberosity morphology (1) could be measured reliably on magnetic resonance imaging (MRI), (2) differed between patients with rotator cuff tears (RCTs) compared with those without tears or glenohumeral osteoarthritis, or (3) differed between patients with rotator cuff repairs (RCR) who healed and those that did not. Methods This is a retrospective comparative study. (1) We measured greater tuberosity width (coronal and sagittal), lateral offset, and angle on MRI corrected into the plane of the humerus. To determine reliability, these measurements were made by two observers and intraclass correlation coefficients were calculated. (2) We compared these measurements between patients with a full-thickness RCT and patients aged >50 years without evidence of a RCT or glenohumeral osteoarthritis. (3) We then compared these measurements between those patients with healed RCRs and those with evidence of retear on MRI. In this portion, we only included patients with both a preoperative and postoperative MRI at least 1 year from RCR. Postoperative MRIs were obtained to assess healing rates, not because of concern for failure. Those without tendon defects were considered healed. Results (1) In a validation cohort of 50 patients with MRI, all inter-rater intraclass correlation coefficients were greater than 0.75. (2) There were no differences between our RCT group of 110 patients and our comparison group of 100 patients in tuberosity coronal width, sagittal width, or lateral offset. The RCT group had a significantly smaller greater tuberosity angle (63 ± 4° vs 65 ± 5°, P = .003). (3) In our group of 110 RCRs, postoperative MRI scans were obtained at a mean follow-up of 23.6 ± 15.7 months showing 84 (76%) patients had healed RCRs. Larger coronal tuberosity width was associated with healing (1.3 ± 0.2 vs 1.2 ± 0.2 cm, P = .032), as was smaller tear width ( P < .001), and retraction ( P < .001). When coronal width was dichotomized, there was a significantly higher healing rate with a width over 1.2 cm (85 vs 66%, P = .02). No other greater tuberosity morphological characteristics were associated with RCR or postoperative healing. Conclusion RCTs do not appear to be associated with greater tuberosity morphology. Postoperative rotator cuff healing based on MRI is 76%. Higher rates of healing occur with a wider coronal tuberosity width (ie, rotator cuff tendon footprint). Consideration could be given to widening the footprint intraoperatively in an effort to improve healing rates although this remains to be validated.

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“…4-7 However, no consensus has been reached on these associations, as there are also reports that suggest that there is no association between the CSA, LAA, and Bigliani classification in relation to rotator cuff tears. [9][10][11] In terms of AHD, it has been reported that the AHD can decrease as a result of rotator cuff tears. 6 In this study, the CSA was less than 35 • and the LAA was more than 70 • in both groups, and there was no significant difference in the prevalence of Type 3 tears under the Bigliani classification.…”

Section: Discussionmentioning

confidence: 99%

Morphological characteristics of the acromion in Fosbury flop tears and their clinical outcomes after arthroscopic rotator cuff repair

Kajita

Iwahori

Harada

et al. 2020

Journal of Orthopaedics

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Acromial morphology is not associated with rotator cuff tearing or repair healing

Cited by 28 publications

References 50 publications

The association between acromial anatomy and articular-sided partial thickness of rotator cuff tears

The association between acromial anatomy and articular-sided partial thickness of rotator cuff tears

Footprint size matters: wider coronal greater tuberosity width is associated with increased rates of healing after rotator cuff repair

Morphological characteristics of the acromion in Fosbury flop tears and their clinical outcomes after arthroscopic rotator cuff repair

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