Berufsgenossenschaftliche Unfallklinik, Eberhard Karls Universität Tübingen, Schnarrenbergstr. 95, 72076, Tübingen, Germany,
Arch Orthop Trauma Surg. 2013 Nov;133(11):1543-8. doi: 10.1007/s00402-013-1825-3. Epub 2013 Aug 3.
The success of shoulder stabilization with the Latarjet procedure might depend on the size of the bone graft and the positioning of the coracoid at the glenoid. The aim of this study was to quantitatively assess the surface of the coracoid bone graft and to assess its positioning in the en-face view.
A series of 21 patients (17 men, 4 women, 26.1 ± 6.8 years-9 right, 12 left shoulders) were prospectively included and followed up with CT scans between December 2010 and April 2012 at an average of 2.4 ± 0.7 months postoperatively. The retrospective analysis of the CT scans was performed with Osirix™ software. The coracoid surface was measured (cm(2)) in the sagittal plane. The positioning in relation to the center of the circumscribed circle of the glenoid was determined in the en-face clock face view of the glenoid.
The grafts had a mean surface of 1.61 ± 0.51 cm(2) (mean ± standard deviation). The coracoid grafts were located between 01:05 hours (32.5°) and 05:33 hours (166.6°). Mean positioning was 02:00 hours (59.8° ± 16.1°) to 04:26 hours (133.0° ± 16.9°). The extent of the grafts was 73.2° ± 14.3°.
The positioning of the coracoid graft on the clock face of the glenoid is situated in the decisive zone of 02:30-04:20 hours. The mean surface of the graft is smaller than expected from anatomical studies, but restores in defect situations bone stock in the potential defect areas at the anterior glenoid rim.
Level IV, prospective case series, treatment study.
喙突骨移植在肩稳定术中的成功可能取决于植骨块的大小和喙突在关节盂中的位置。本研究的目的是定量评估喙突骨移植的表面，并评估其在关节盂正面视图中的位置。
前瞻性纳入 21 例患者（17 名男性，4 名女性；26.1±6.8 岁；9 例右侧，12 例左侧肩关节），并于 2010 年 12 月至 2012 年 4 月期间在术后平均 2.4±0.7 个月进行 CT 扫描随访。使用 OsirixTM 软件对 CT 扫描进行回顾性分析。在矢状面测量喙突表面（cm2）。在关节盂正面钟面视图中，根据关节盂限定圆的中心确定其位置。
移植骨的平均表面积为 1.61±0.51cm2（平均值±标准差）。喙突移植位于 01:05 小时（32.5°）至 05:33 小时（166.6°）之间。平均位置为 02:00 小时（59.8°±16.1°）至 04:26 小时（133.0°±16.9°）。移植骨的范围为 73.2°±14.3°。
喙突移植在关节盂钟面上的位置位于 02:30-04:20 小时的关键区域。移植骨的平均表面积小于解剖研究预期的面积，但在关节盂前边缘的潜在缺损区域的骨缺损情况下可恢复骨量。
IV 级，前瞻性病例系列，治疗研究。
