Morphologic Variability of the Shoulder between the Populations of North American and East Asian

Cabezas, Andres F.; Krebes, Kristi; Hussey, Michael M.; Santoni, Brandon G.; Kim, Hyuong Sik; Frankle, Mark A.; Oh, Joo Han

doi:10.4055/cios.2016.8.3.280

Cited by 50 publications

(44 citation statements)

References 20 publications

(35 reference statements)

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“…[17][18][19][20] It has also been reported that the mean glenoid height is 38.0 mm (29.4-50.1 mm), and the mean difference between men and women is 4.7 mm. [17][18][19][20] The differences between these values and the analysis results of anatomic landmarks in this study are almost similar to the disparities in the anatomic landmarks between North American and East Asian populations presented by Cabe-zas et al 21) Pinkas et al 19) noted the importance of the glenoid vault of the cancellous bone surrounded by the thin cortical bone.In this study, it was found that as glenoid height became smaller, glenoid apex range was increased, and that as glenoid width became narrower, glenoid apex range was increased. These findings suggest that even if glenoid height is large, the portion of glenoid apex where the glenoid component can be safely inserted is small, so the glenoid component should be inserted carefully.…”

Section: Discussionsupporting

confidence: 85%

Another Glenoid Measurements for Shoulder Surgery

Jeong¹,

Yum²,

Lee³

2018

Clin Shoulder Elbow

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BACKGROUND: We analyzed the angle between the glenoid anterior surface and glenoid axis, the range of the glenoid apex and the location of the glenoid apex for assistance during shoulder surgery.METHODS: Sixty-two patients underwent a computed tomography of the shoulder with a proximal humerus fracture. In the range of the glenoid apex, the ratios of the distribution of triangles with a Constant anterior and posterior area of the glenoid were measured. The location of glenoid apex was confirmed as the percentage of the position with respect to the upper part of the glenoid with the center of the part, analyzed the angle between the glenoid anterior surface and glenoid axis was measured.RESULTS: The angle between the glenoid anterior surface and glenoid axis was 19.80° ± 3.88°. The location of the glenoid apex is 60.36% ± 9.31%, with the upper end of the glenoid as the reference. The range of the glenoid apex was 21.16% ± 4.98%. When the height of the glenoid becomes smaller, the range of the glenoid apex tends to become larger (p=0.001) and the range of the glenoid apex becomes wider (p=0.001) as the glenoid width narrows.CONCLUSIONS: We believe the anatomical measurements of the glenoid will be helpful for a more accurate insertion in glenoid component. It is thought that more accurate insertion is possible if we can set other anatomical measurements using computed tomography imaging of the glenoid which can develop into the study of other anatomical measurements.

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Section: Discussionsupporting

confidence: 85%

Another Glenoid Measurements for Shoulder Surgery

Jeong¹,

Yum²,

Lee³

2018

Clin Shoulder Elbow

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“…Despite the lack of direct comparison, it is likely that there are few, if any, differences in glenoid thickness between Koreans and Westerners. For example, Cabezas et al 21) conducted an analysis of morphologic variability of the shoulder between the populations of North American and East Asia. They reported that the East Asian population exhibited smaller shoulder morphometrics than did the North American cohort, especially regarding the glenoid height and inferior glenoid width.…”

Section: Discussionmentioning

confidence: 99%

Three-Dimensional Morphometric Analysis of Penetrative Depth and Size of Nonarthritic and Degenerative Arthritic Glenoids: Implications for Glenoid Replacement in Shoulder Arthroplasty

et al. 2020

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Accurate preoperative planning for shoulder arthroplasty, including exact sizing, is required for good long-term prognosis and function. 1) Successful shoulder arthroplasty requires stable initial fixation of the prostheses and a compatible fit between the glenoid component and the underlying glenoid bone. Thus, shoulder arthroplasty is technically demanding and relies heavily on precise preoperative planning and surgical techniques. The glenoid

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“…Also, higher rates of notching observed in our study as compared to other BIO-RSA studies may be because of our study population and prosthesis sizing limitation. As already quantified, the East Asian population has smaller glenoid sizes, especially females [17]. This reverse prosthesis design was not originally designed according to their morphology.…”

Section: Discussionmentioning

confidence: 99%

Clinical and Radiological Outcomes of Bony Increased Offset-Reverse Total Shoulder Arthroplasty in the Asian Population

Tankshali¹,

Ji²,

Park³

et al. 2020

Preprint

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Background: Bony increased offset-reverse total shoulder arthroplasty (BIO-RSA) was proposed which uses autograft harvested from the patient’s humeral head to lateralize the glenoid baseplate. This technique provided the lateralization of the center of rotation and the reduction of the scapular notching. Few studies have reported outcomes of BIO-RSA in the Asian population. We reported the first report of clinical and radiological outcomes of BIO-RSA in the Asian population at mid-term follow-up. Methods: From June 2012 to August 2017, a total 38 patients with average age of 73±6 years operated by the BIO-RSA technique with minimum two-year follow-up (average 36.7±16 months) were enrolled in our study. Indications of the BIO-RSA were rotator cuff tear arthropathy, massive irreparable cuff tear without osteoarthritis, primary osteoarthritis with glenoid defect, recurrent shoulder dislocation with massive cuff tear, and glenoid fracture sequela. We excluded patients with acute proximal humerus fracture, avascular necrosis and revision RSA performed using allo- or autograft. We evaluated clinical and radiological outcomes of BIO-RSA at the last follow-up. Results: VAS, ASES, UCLA, and SST scores improved significantly from preoperative (average-5, 39.4, 16.2, 3.9) to postoperative (average- 1.7, 78.9, 28.3, 7.8, p-value < 0.05). All range of motion except internal rotation improved significantly at the last follow-up (p-value <0.05) and the bone graft was incorporated with the native glenoid in all the cases (100%). However, scapular notching was observed in 23/38 (60.5%) of patients. Intraoperative complications were three metaphyseal fractures and one inferior screw malpositioning. Postoperative complications included one heterotropic ossification, one scapula neck stress fracture, one humeral stem loosening, and one late infection. Conclusions: BIO-RSA results in improved clinical outcomes at mid-term follow-up in the Asian population. Although better cosmesis and advantage of glenoid lateralization were observed in our study along with similar complications rates as compared to conventional RTSA, we observed higher rates of scapular notching to previously reported rates in BIO-RSA studies.

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Morphologic Variability of the Shoulder between the Populations of North American and East Asian

Cited by 50 publications

References 20 publications

Another Glenoid Measurements for Shoulder Surgery

Another Glenoid Measurements for Shoulder Surgery

Three-Dimensional Morphometric Analysis of Penetrative Depth and Size of Nonarthritic and Degenerative Arthritic Glenoids: Implications for Glenoid Replacement in Shoulder Arthroplasty

Clinical and Radiological Outcomes of Bony Increased Offset-Reverse Total Shoulder Arthroplasty in the Asian Population

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