Surgical and Radiologic Anatomy最新文献

{"title":"Morphometric analysis of the coracoid process in the Chinese population: clinical strategies for fracture fixation.","authors":"Yiwen Tan, Xingxing Wang, Zhao Tan, Bo Yu, Hu Zhang","doi":"10.1007/s00276-025-03737-2","DOIUrl":"10.1007/s00276-025-03737-2","url":null,"abstract":"<p><strong>Purpose: </strong>The coracoid process presents surgical challenges due to its irregular anatomical morphology, further compounded by a paucity of population-specific morphometric data in the Chinese population. This study aimed to systematically analyze the morphometric characteristics of the coracoid process in the Chinese population and simulate mid-axial screw placement through the vertical portion of the coracoid, thereby providing anatomical guidance for surgical fixation of coracoid base fractures.</p><p><strong>Methods: </strong>Seven scapular specimens and 12 three-dimensional CT reconstructions were analyzed. Measurements were set the length, width, and thickness of the horizontal portion, the height, width, and thickness of the vertical portion, as well as the length and width of the glenoid cavity. Simulated mid-axial screw trajectories were assessed for angulation relative to the glenoid plane and scapular body plane, and the extreme range of each entry angle was defined. Specimen measurements were compared to the CT data. Entry point distances from anatomical landmarks and screw trajectory lengths were measured.</p><p><strong>Results: </strong>In the scapular specimens, the length of the horizontal portion was 37.94 ± 4.02 mm, with a width of 13.74 ± 1.35 mm and a thickness of 9.40 ± 0.90 mm. The height of the vertical portion was 19.14 ± 1.64 mm, with a width of 24.99 ± 1.30 mm and a thickness of 9.97 ± 1.43 mm. The length of the glenoid cavity was 41.21 ± 4.50 mm, and the width was 29.39 ± 4.12 mm. In the glenoid plane, the screw trajectory angle was 51.33° ± 16.04°, and the extreme range of entry angle was 53.53° ± 6.05°. For the scapular body plane, it was 8.67° ± 6.36° and 63.86° ± 6.36°, respectively. The CT data measurements aligned with those of the specimens except for the extreme range of entry angles (P < 0.05). The optimal entry point was 10 mm lateral to the medial border of the horizontal portion, slightly below the midpoint of its superior-inferior axis, with a trajectory length of about 40 mm.</p><p><strong>Conclusion: </strong>This study delineates the anatomical dimensions of the coracoid process in the Chinese population and defines safe parameters for mid-axial screw placement through the vertical portion, including entry point localization, trajectory orientation, and angulation limits. These findings enhance the precision and safety of coracoid-related surgical interventions.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"234"},"PeriodicalIF":1.2,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12521262/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145294225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carotid-anterior cerebral artery (ACA) anastomosis (infraoptic ACA): review and proposing additional classification of bilateral type.","authors":"Akira Uchino","doi":"10.1007/s00276-025-03743-4","DOIUrl":"https://doi.org/10.1007/s00276-025-03743-4","url":null,"abstract":"","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"230"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Re-evaluating the 'gonadal ganglion': anatomical insights into intermesenteric ganglia and gonadal innervation.","authors":"Miki Yaguchi, Tomokazu Kawashima","doi":"10.1007/s00276-025-03748-z","DOIUrl":"https://doi.org/10.1007/s00276-025-03748-z","url":null,"abstract":"","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"231"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case report of an absence of the left inferior thyroid artery with the thyroid IMA artery compensating.","authors":"Fa-Bao Xu, Wen-Bo Yue, Chun Yang","doi":"10.1007/s00276-025-03741-6","DOIUrl":"https://doi.org/10.1007/s00276-025-03741-6","url":null,"abstract":"","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"228"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of sellar parameters using computed tomography for a safe endonasal transsphenoidal approach in pituitary surgery.","authors":"İbrahim Akbudak, Muhammed Tekinhatun, Mehmet Turmak, Muhammed Akif Deniz","doi":"10.1007/s00276-025-03744-3","DOIUrl":"https://doi.org/10.1007/s00276-025-03744-3","url":null,"abstract":"<p><strong>Purpose: </strong>Endoscopic endonasal transsphenoidal surgery (EETS) is a key treatment for pituitary tumours unresponsive to medication, but it carries risks such as internal carotid artery injury and cavernous sinus haemorrhage. This study aims to establish safe surgical boundaries by measuring sellar region parameters on computed tomography angiography (CTA) images to enhance EETS efficacy and minimize complications.</p><p><strong>Methods: </strong>This study involved 460 adult patients who underwent head and neck CTA scanning at our clinic from August 2023 to April 2024. Measurements taken from CTA images included skull base angle (SBA), Anterior Surgical Angle (ASA), Posterior Surgical Angle (PSA), Anterior Distance 1 (AD1), Anterior Distance 2 (AD2), Posterior Distance 1 (PD1), Posterior Distance 2 (PD2), Safe Window Area (SWA), Depth of the Sella Turcica (DST), Intercarotid Distance (ID), Apex Nasi-Sella Turcica Angle (ANSTA), Sella Anterior Wall Thickness (TSAW) and Sella Floor Wall Thickness (TSFW). Sphenoid sinus types were also assessed, with comparisons made between genders and age groups.</p><p><strong>Results: </strong>When comparing genders, median values of SBA, ASA, DST and ANSTA were significantly higher in females, whereas AD1, AD2, PD1, PD2, SWA, ID and TSAW were significantly higher in males (p < 0.05). Moreover, correlation analysis revealed a significant positive correlation between age and PSA, PD1-2, ID, TSAW and TSFW.</p><p><strong>Conclusion: </strong>Pre-operative measurement of sella turcica parameters and sphenoid sinus type by radiologists is crucial for neurosurgeons planning EETS for pituitary lesions, potentially reducing complications through a better understanding of surgical anatomy.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"229"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bilateral incomplete mandibular canals: an embryological analysis of their possible etiology.","authors":"Kanitin Rumpansuwon, Thewarid Berkban, Nutmethee Kruepunga, Wattana Weerachatyanukul, Somluk Asuvapongpatana, Arada Chaiyamoon, Benrita Jitaree, R Shane Tubbs, Joe Iwanaga, Thanyaporn Senarai, Athikhun Suwannakhan","doi":"10.1007/s00276-025-03749-y","DOIUrl":"https://doi.org/10.1007/s00276-025-03749-y","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to report a previously undocumented anatomical variation of the mandible and investigate its developmental origin using embryological analysis.</p><p><strong>Methods: </strong>Anatomical inspection and computed tomography were performed on a dried human mandible from a male cadaver of unknown age. Additionally, serial histological sections from a Carnegie Stage 23 human embryo were reconstructed in 3D model to examine the spatial relationships between the developing mandible and surrounding structures.</p><p><strong>Results: </strong>The mandibular canal exhibited breaching of the medial wall into the lingual cortex on both sides. Computed tomography confirmed that the canals originated from the mandibular foramen and gave rise to the mental foramina at the medial third of the mandible. These defects were found along with a left-sided Stafne bone cavity. Embryological analysis revealed a close spatial proximity between the developing mandible, the inferior alveolar nerve, and the salivary glands, supporting the hypothesis that incomplete ossification could result from variant nerve positioning or glandular entrapment.</p><p><strong>Conclusion: </strong>This study presents rare anatomical variations of the mandibular canal and their possible developmental mechanism. These findings have implications for radiological interpretation and surgical planning involving the mandible.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"233"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role-based prompting to optimize chatgpt's anatomical assessment.","authors":"Ismail Sivri, Furkan Mehmet Ozden, Gamze Gul, Emre Kaygin, Tuncay Colak","doi":"10.1007/s00276-025-03747-0","DOIUrl":"https://doi.org/10.1007/s00276-025-03747-0","url":null,"abstract":"","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"232"},"PeriodicalIF":1.2,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of variations in the innervation of the thenar muscles by the median nerve.","authors":"Erdinç Acar, Mehmet Yılmaz, Yusuf Kıratlıoğlu, Halil İbrahim Acar, Mehmet Armangil, İbrahim Tekdemir","doi":"10.1007/s00276-025-03735-4","DOIUrl":"https://doi.org/10.1007/s00276-025-03735-4","url":null,"abstract":"<p><strong>Introduction: </strong>This study aims to investigate the anatomical variations in the median nerve and its branches, specifically focusing on their distribution to the muscles and the points at which they enter the muscles. In addition, the branching level of the ramus muscularis of the median nerve supplying the thenar muscles was examined to explore potential correlations with carpal tunnel syndrome. Understanding these variations is crucial for minimizing iatrogenic nerve damage during surgical procedures in the carpal tunnel region.</p><p><strong>Methods: </strong>Dissections were conducted on 15 forearm and wrist specimens, including 8 right-sided cadavers and 7 left-sided cadavers. The muscle branch entry levels into the thenar region were measured, and the nerve was classified according to Lanz's classification system during the opening of the flexor retinaculum. Parameters such as the height of the first branch of the median nerve relative to the z-line (interstyloid line), the relationship of the nerve's muscular branch to the flexor retinaculum, the level of entry of the muscle branch into the muscle (relative to the z-line), muscle length, and the ratio of the entry level of the first branch to muscle length were examined.</p><p><strong>Results: </strong>Four types of median nerve branching were observed according to Lanz's classification. The extraligamentous type was the most common, found in 53% of the specimens. In preligamentous types, the branches emerged on average 13.37 ± 5.69 mm inferiorly, except for those relative to the z-line. The entry level of the muscle branch into the muscle was most frequently located in the upper third of the thenar region. The average length of the thenar region was measured to be 11.40 ± 1.02 mm. The high frequency (53%) of the extraligamentous type in our study aligns with the findings in the general literature. However, the discovery of an additional preligamentous accessory motor branch in 46% of cases is a noteworthy observation, highlighting a higher rate than previously documented.</p><p><strong>Conclusion: </strong>These branching patterns suggest the need for careful consideration of accessory branches during surgical procedures in the carpal tunnel region. In particular, during carpal tunnel surgeries, it is recommended to assess the relationship between the motor branch of the median nerve and the flexor retinaculum before releasing it, as variations in branching could have implications for surgical outcomes.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"227"},"PeriodicalIF":1.2,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145259842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The lingual-facial-ascending pharyngeal trunk.","authors":"George Triantafyllou, Panagiotis Papadopoulos-Manolarakis, Rǎzvan-Costin Tudose, Mugurel Constantin Rusu, George Tsakotos, Maria Piagkou","doi":"10.1007/s00276-025-03721-w","DOIUrl":"10.1007/s00276-025-03721-w","url":null,"abstract":"<p><p>Though small, the ascending pharyngeal artery (APA) is surgically significant due to its proximity to the internal carotid artery (ICA) and supply to critical neurovascular structures. We present a unique arterial variant identified by computed tomography angiography (CTA) in a 52-year-old male. On the left side, the APA originated in common with a short linguofacial trunk (LFT) that further gave rise to the lingual and facial arteries (LA and FA), forming a trifurcated LA-FA-APA trunk. On the right side, an independent LFT was present, with the APA originating separately from the external carotid artery (ECA). CTA with three-dimensional reconstruction is essential for detecting rare vascular configurations and should be part of the preoperative evaluation for head and neck surgeries and endovascular procedures.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"225"},"PeriodicalIF":1.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12507964/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145253547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arthroscopic posterior approaches to the wrist and periscaphoid vascular network: a cadaveric anatomical study.","authors":"Axel Koehly, Marine Pichonnat, Jean-Michel Cognet, Daniel Lepage, Marion Burnier, François Loisel, Eléonore Brumpt","doi":"10.1007/s00276-025-03734-5","DOIUrl":"https://doi.org/10.1007/s00276-025-03734-5","url":null,"abstract":"","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"226"},"PeriodicalIF":1.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145253524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}