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Please use this identifier to cite or link to this item: http://hdl.handle.net/10564/3074

Title: Suprascapular notch variations: a 3DCT study.
Other Titles: 肩甲切痕のバリエーション-3DCT による検討
Authors: Inoue, Kazuya
Suenaga, Naoki
Oizumi, Naomi
Sakamoto, Yoshihiro
Sakurai, Goro
Miyoshi, Naoki
Taniguchi, Noboru
Tanaka, Yasuhito
Issue Date: Nov-2014
Publisher: Springer Japan
Citation: Journal of orthopaedic science Vol.19 No.6 p.920-924(2014.11)
Abstract: BACKGROUND:Although cadaveric studies have revealed suprascapular notch shape variations, few have investigated the association between suprascapular notch variation and age or gender. The purpose of this study was to investigate suprascapular notch shape variations by use of three-dimensional computed tomography (3DCT) and to determine if there was any association with age or gender.METHODS:Three-dimensional CT images of 762 shoulders of 762 patients were analyzed in this study. Participants comprised 404 men and 358 women, with an average age of 58.2 ± 19.1 years. Suprascapular notch shape variations were classified into six types on the basis of Rengachary's classification.RESULTS:Of the total study population, 11.4% were classified as type I, 23.5% as type II, 30.1% as type III, 14.8% as type IV, 15.9% as type V, and 4.3% as type VI. Average age was 56.5 ± 20.5 years for type I, 57.0 ± 19.5 years for type II, 55.5 ± 20.0 years for type III, 56.4 ± 18.5 years for type IV, 65.5 ± 14.4 years for type V, and 68.0 ± 13.4 years for type VI. Statistically significant age differences were found between types I-IV and V, between types I-IV and VI, and between the non-ossification group (types I-IV) and the ossification group (types V and VI). Male-to-female ratio among each type, and between the non-ossification group and the ossification group, were not statistically significantly different.CONCLUSIONS:Our results suggest that transverse scapular ligament ossification is associated with aging whereas individual variation explains differences among types I, II, III, and IV. Three-dimensional CT provides useful information for arthroscopic resection of the transverse scapular ligament, when the wide variety of suprascapular notch shape variations is considered.LEVEL OF EVIDENCE:Level IV.
Description: 博士(医学)・乙第1361号・平成27年5月28日
© Springer International Publishing AG, Part of Springer Science+Business Media. The definitive version is available at " http://dx.doi.org/10.1007/s00776-014-0636-x "
© The Japanese Orthopaedic Association 2014
URI: http://hdl.handle.net/10564/3074
ISSN: 09492658
DOI: http://dx.doi.org/10.1007/s00776-014-0636-x
Academic Degrees and number: 24601B1361
Degree-granting date: 2015-05-28
Degree name: 博士(医学)
Degree-granting institutions: 奈良県立医科大学
Appears in Collections:2015年度

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