ArticleBMC musculoskeletal disorders2018
Optimal viewing angles of intraoperative fluoroscopy for detecting screw penetration in proximal humeral fractures: a cadaveric study.
Article in BMC musculoskeletal disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 2 citations in OpenAlex.
- A new anatomical locking plate for scapular neck fractures: a finite element analysis and retrospective clinical study.International orthopaedics · 2026Article
- [Research progress on intra-articular screw penetration in proximal humeral fracture treated with locking plate].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021Review
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundTo identify the optimal viewing angles for every proximal screw in PHILOS plate-fixed proximal humeral fractures.
methodsThree fresh-frozen human cadaveric bodies with six intact shoulders were studied. All three bodies were put in the beach chair position and PHILOS plates were placed on the proximal humerus. Head screws penetrating 1 mm into the joint were fitted one by one. Fluoroscopy was conducted in the 180° horizontal plane and the 120° coronal plane to analyze each screw's penetration in every shoulder. Images were taken every 5°, then all images were analyzed to identify the sensitive angles.
resultsThe range of optimal viewing angles to visualize penetration of every head screw was identified. In the coronal plane, the angles in the range between 0° and 10° were sensitive to all screws except No. 8 and No. 9. Furthermore, penetration of screws No. 8 and 9 could not be identified on any axillary view, but could be identified in the horizontal plane from - 30° to - 10° and from 10° to 35° respectively.
conclusionsWe recommend a 0°-10° axillary view with 30° arm abduction combined with two horizontal angles in the range of - 30° to - 10° and 10° to 35° for routine fluoroscopy during surgery. Our results will be helpful in avoiding primary screw penetration.
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