Morphology of Proximal Ulna Bare Area: A Guide for Olecranon Osteotomy.
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Publisher: Elsevier Country of Publication: United States NLM ID: 7609631 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1531-6564 (Electronic) Linking ISSN: 03635023 NLM ISO Abbreviation: J Hand Surg Am Subsets: MEDLINE
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Ting FSH;Huang A;Potra R;Ferreira L;King GJW
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Publisher: Elsevier Country of Publication: United States NLM ID: 7609631 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1531-6564 (Electronic) Linking ISSN: 03635023 NLM ISO Abbreviation: J Hand Surg Am Subsets: MEDLINE
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Purpose: Olecranon osteotomy is commonly used to obtain access to the distal humerus f...
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Morphology of Proximal Ulna Bare Area: A Guide for Olecranon Osteotomy.
Publisher: Elsevier Country of Publication: United States NLM ID: 7609631 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1531-6564 (Electronic) Linking ISSN: 03635023 NLM ISO Abbreviation: J Hand Surg Am Subsets: MEDLINE
Purpose: Olecranon osteotomy is commonly used to obtain access to the distal humerus for fracture fixation . The goal of this study was to accurately describe the anatomy of the bare area to minimize articular cartilage damage while performing olecranon osteotomies.
Methods: Twenty cadaveric ulnae were denuded to expose the bare area. Laser surface mapping was used to create 3-dimensional models, and the nonarticular portions of the ulnae were digitally measured.
Results: The morphology of the bare area from all aspects of the proximal ulna was defined. The central bare area was consistent in its location, 4.9 ± 1.5 mm distal to the deepest portion of the trochlear notch and 23.2 ± 2.3 mm distal to the olecranon tip. The maximum chevron osteotomy apical angle to stay within the bare area averaged 110° ± 11.8°. However, there was little tolerance for error without the risk of violating the articular cartilage. With transverse osteotomy, averaging 18° ± 10.6° in the coronal plane, there is less risk of damaging the articular cartilage.
Conclusions: Transverse osteotomy perpendicular to the posterior surface of the ulna aiming at the visible bare area on the medial and lateral sides of the greater sigmoid notch may reduce the chances of violating the nonvisible articular cartilage of the proximal ulna. Based on the findings of this study, if chevron osteotomy is used, a shallow apex distal angle of more than 110° is recommended.
Clinical Relevance: This study provides intraoperative landmarks to guide surgeons performing olecranon osteotomies to stay within the bare area.
(Copyright © 2024 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.)
Methods: Twenty cadaveric ulnae were denuded to expose the bare area. Laser surface mapping was used to create 3-dimensional models, and the nonarticular portions of the ulnae were digitally measured.
Results: The morphology of the bare area from all aspects of the proximal ulna was defined. The central bare area was consistent in its location, 4.9 ± 1.5 mm distal to the deepest portion of the trochlear notch and 23.2 ± 2.3 mm distal to the olecranon tip. The maximum chevron osteotomy apical angle to stay within the bare area averaged 110° ± 11.8°. However, there was little tolerance for error without the risk of violating the articular cartilage. With transverse osteotomy, averaging 18° ± 10.6° in the coronal plane, there is less risk of damaging the articular cartilage.
Conclusions: Transverse osteotomy perpendicular to the posterior surface of the ulna aiming at the visible bare area on the medial and lateral sides of the greater sigmoid notch may reduce the chances of violating the nonvisible articular cartilage of the proximal ulna. Based on the findings of this study, if chevron osteotomy is used, a shallow apex distal angle of more than 110° is recommended.
Clinical Relevance: This study provides intraoperative landmarks to guide surgeons performing olecranon osteotomies to stay within the bare area.
(Copyright © 2024 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.)
Subject terms:
Humans - Ulna surgery - Ulna anatomy & histology - Fracture Fixation methods - Osteotomy methods - Fracture Fixation, Internal methods - Olecranon Process surgery - Elbow Joint surgery - Elbow Joint anatomy & histologyContent provider:
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Artifacts in biological electron microscopy / edited by Richard F.E. Crang and Karen L. Klomparens.
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1988
Available at Available Merrill-Cazier Books (3rd Floor North) (Call number: QH 212 .E4 A78 1988)
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Topographic localization of the sacroiliac joint and superior gluteal artery branches on the posterolateral ilium.
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Publisher: Alan R. Liss, Inc Country of Publication: United States NLM ID: 8809128 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-2353 (Electronic) Linking ISSN: 08973806 NLM ISO Abbreviation: Clin Anat Subsets: MEDLINE
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Mahato NK
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Publisher: Alan R. Liss, Inc Country of Publication: United States NLM ID: 8809128 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-2353 (Electronic) Linking ISSN: 08973806 NLM ISO Abbreviation: Clin Anat Subsets: MEDLINE
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Latrogenic vascular injuries at the posterior ilium during sacroiliac screw placements...
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Topographic localization of the sacroiliac joint and superior gluteal artery branches on the posterolateral ilium.
Publisher: Alan R. Liss, Inc Country of Publication: United States NLM ID: 8809128 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-2353 (Electronic) Linking ISSN: 08973806 NLM ISO Abbreviation: Clin Anat Subsets: MEDLINE
Latrogenic vascular injuries at the posterior ilium during sacroiliac screw placements are not uncommon. Though intra-operative imaging reduces the risk of such injuries, anatomical localization of the sacral segments using discrete topographical landmarks is not currently available. This descriptive study proposes the use of an anatomical grid system to localize the sacroiliac articulation on the posterolateral ilium. It also investigates the positional variability of the branches of the superior gluteal artery (SGA) within areas defined by the grid. 48 dried adult hip bones were examined to determine the position of the sacral articular surface on the posterolateral surface of the ilium. A novel grid-system was defined and used to map the positions of the articulation of the first two sacral segments on the posterolateral ilium. Superficial and deep branches of the SGA were dissected in donor cadavers and their courses were virtually overlayed on the grid system. The grid system localized the sacral articular surfaces within a defined area on the posterior ilium. Arterial distributions indicated the presence of the superficial branch of SGA more frequently over the screw insertion area (at an intermuscular plane), while the deep branch ran closer to the ilium but antero-inferior to the screw placement areas. This study proposes a new topographical perspective of visualizing SGA branches with respect to the cranial sacral segments. Precise localization of vascular anatomy may help to reduce potential risk of injury during sacroiliac screw placements.
(© 2023 American Association of Clinical Anatomists and British Association of Clinical Anatomists.)
(© 2023 American Association of Clinical Anatomists and British Association of Clinical Anatomists.)
Subject terms:
Adult - Humans - Sacroiliac Joint anatomy & histology - Sacrum anatomy & histology - Arteries - Fracture Fixation, Internal methods - Ilium anatomy & histology - Ilium surgery - Pelvic BonesContent provider:
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Fixation for electron microscopy / M.A. Hayat.
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1981
Available at Available Merrill-Cazier Books (3rd Floor North) (Call number: QH235 .H39)
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Early Bony Fixation and Soft Tissue Coverage in Type IIIB Open Proximal Tibia Fractures: A Cross-sectional Study.
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Journal of Clinical & Diagnostic Research. Dec2023, Vol. 17 Issue 12, p1-4. 4p.
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VERMA, PANKAJ KUMAR;KUMAR, SURENDRA;SINGH, AVINASH;VASEEM, MOHAMMAD;SHRISHM...
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Journal of Clinical & Diagnostic Research. Dec2023, Vol. 17 Issue 12, p1-4. 4p.
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Zooplankton fixation and preservation / edited by H. F. Steedman.
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1976
Available at Available Merrill-Cazier BARN, Books, Circulation Desk (1st Floor) (Call number: QL 123 .Z64)
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An evolutionary perspective to intramedullary nail fit - comparing present-day data with a historical specimen collection.
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Publisher: E Schweizerbartsche Country of Publication: Germany NLM ID: 0372377 Publication Model: Print Cited Medium: Print ISSN: 0003-5548 (Print) Linking ISSN: 00035548 NLM ISO Abbreviation: Anthropol Anz Subsets: MEDLINE
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Schmutz B;Rühli F;Schuetz F;Eppenberger P
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Publisher: E Schweizerbartsche Country of Publication: Germany NLM ID: 0372377 Publication Model: Print Cited Medium: Print ISSN: 0003-5548 (Print) Linking ISSN: 00035548 NLM ISO Abbreviation: Anthropol Anz Subsets: MEDLINE
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Manufacturers aim to design implants fitting for the broadest possible population segm...
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An evolutionary perspective to intramedullary nail fit - comparing present-day data with a historical specimen collection.
Publisher: E Schweizerbartsche Country of Publication: Germany NLM ID: 0372377 Publication Model: Print Cited Medium: Print ISSN: 0003-5548 (Print) Linking ISSN: 00035548 NLM ISO Abbreviation: Anthropol Anz Subsets: MEDLINE
Manufacturers aim to design implants fitting for the broadest possible population segment. Due to the scarcity of available morphological data of intact long bones, anatomical collections of historical bone specimens may represent valuable additional sources. Previous work on femoral morphology measurements suggests that historical specimens are widely consistent with data from present-day populations. This study aimed to investigate whether this also applies to the anatomical fitting of a clinically used femoral nail. Nail fit was computer-graphically quantified through virtual implantation into CT-based 3D models of 52 femora, comprising a subset representative of the present-day Caucasian population (n = 31), a subset from a historical medieval European bone collection (n = 20), and additionally, a dataset from a natural ice mummy from the Neolithic period. Nail fit was assessed by nail protrusion (area and distance) to the inner cortex surface and the distal nail tip's position in the medullary canal. Assessed measurements and parameters of the present-day Caucasian subset were mostly consistent with those of the medieval European subset. After adjusting for multiple testing, only the distance from lateral nail entry point to shaft axis remained significantly ( p = 0.03) different when comparing our modern and medieval subsets. Subsequent bivariate (Spearman) correlation analyses for both subsets (modern and medieval) combined showed that of the three variables representing basic demographic parameters, individual age, biological sex, and femur length, most statistically significant associations to the examined nail fit measurements were found for age (six measurements at a level of p < 0.05), however, with a relatively weak monotonic correlation (rho values ranging between ±0.31 and ±0.37). The measurements for the Iceman's femur lie within the range of the modern and historical subgroups, but in some cases, differ by more than one standard deviation from the mean. Our results confirm previous findings, suggesting that more recent historical bone specimen collections may indeed be a convenient and easily accessible source of new 3D morphological data and complement existing data to be used for the development of femoral nails.
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Humans - Bone Nails - Femur anatomy & histology - Fracture Fixation, Intramedullary methods - Femoral Fractures surgeryContent provider:
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Lateral malleolar crest and its clinical importance.
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Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
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Fojtík P;Kašper Š;Bartoníček J;Tuček M;Naňka O
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Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
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Purpose: During study of anatomy of a fractured posterior malleolus of the ankle on CT...
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Lateral malleolar crest and its clinical importance.
Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
Purpose: During study of anatomy of a fractured posterior malleolus of the ankle on CT scans, the authors noticed a prominent crest on the lateral malleolus, which they termed the lateral malleolar crest (LMC). As, in their view, LMC is a clinically important structure which was only briefly mentioned by a few authors without an official term, they focused on the anatomy of this structure.
Materials and Methods: A total of 352 dry fibulae were analyzed and the following parameters recorded: (F) length of the fibula, (LMC) total length of LMC, (A) length of the part of the examined crest from the superior border of the articular facet of the lateral malleolus (AFLM) to its most proximal intersection with the midline of the fibula, (B) height of the medial triangular rough surface, and (A/F) A/F ratio.
Results: The crest was observed in all specimens. (F) was 346.5 ± 26 mm (95% confidence interval [CI] 344-349), (LMC) was 85.4 ± 11.6 mm (95% CI 84.2-86.6), (A/F) was 25% ± 3% (95% CI 24.7-25.3) in the whole group. (A) was 25.9 ± 6.5 mm (95% CI 24.8-26.8) in the whole group, (B) was 34.9 ± 4.7 mm (95% CI 34.3-35.5) in the whole group, 36 ± 6.1 mm (95% CI 35.1-36.9).
Conclusion: LMC is an important structure on the lateral malleolus. The knowledge of its anatomy is essential for placement of syndesmotic screws or/and the fibular plate.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)
Materials and Methods: A total of 352 dry fibulae were analyzed and the following parameters recorded: (F) length of the fibula, (LMC) total length of LMC, (A) length of the part of the examined crest from the superior border of the articular facet of the lateral malleolus (AFLM) to its most proximal intersection with the midline of the fibula, (B) height of the medial triangular rough surface, and (A/F) A/F ratio.
Results: The crest was observed in all specimens. (F) was 346.5 ± 26 mm (95% confidence interval [CI] 344-349), (LMC) was 85.4 ± 11.6 mm (95% CI 84.2-86.6), (A/F) was 25% ± 3% (95% CI 24.7-25.3) in the whole group. (A) was 25.9 ± 6.5 mm (95% CI 24.8-26.8) in the whole group, (B) was 34.9 ± 4.7 mm (95% CI 34.3-35.5) in the whole group, 36 ± 6.1 mm (95% CI 35.1-36.9).
Conclusion: LMC is an important structure on the lateral malleolus. The knowledge of its anatomy is essential for placement of syndesmotic screws or/and the fibular plate.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)
Subject terms:
Humans - Clinical Relevance - Ankle Joint diagnostic imaging - Ankle Joint surgery - Ankle Joint anatomy & histology - Ankle - Tibia anatomy & histology - Fracture Fixation, Internal - Fibula diagnostic imaging - Fibula anatomy & histology - Ankle Fractures diagnostic imaging - Ankle Fractures surgeryContent provider:
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Morphodynamic study of the corona mortis using the SimLife ® technology.
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Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
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Beya R;Jérôme D;Tanguy V;My-Van N;Arthur R;Jean-Pierre R;Thierry H;Cyril B;...
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Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
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Purpose: Open book pelvic ring fractures are potentially life-threatening, due to thei...
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Morphodynamic study of the corona mortis using the SimLife ® technology.
Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
Purpose: Open book pelvic ring fractures are potentially life-threatening, due to their instability and major hemorrhage risk. During the open reduction and internal fixation , the pelvic approach remains a technical challenge, as the surgeon wants to prevent any iatrogenic damage of the vascular loop located in the retro-pubic area called corona mortis (CMOR). Recently, the cadaver perfused SimLife ® technology has been developed to improve the surgeon training, out of the operating room. This study aimed to compare two models of cadaveric dissection, to assess the interest of the perfused SimLife ® in providing dynamic aspect of anatomy in the identification of CMOR and its topography.
Methods: Twelve human cadaveric pelvises have been dissected, following two protocols. 12 hemi-pelvises of the dissections were performed without perfusion (Model A), whereas the 12 other hemi-pelvises have been prepared with the SimLife® pulsatile perfusion (Model B). The prevalence and morphologic parameters determined: length, diameter and distance between the CMOR and the pubic symphysis.
Results: The CMOR has been found in 66.67% of the cases. The length, the diameter, and the distance between the CMOR and the pubic symphysis were significantly higher in model B (respectively p = 0.029, p = 0.01, and p = 0.022).
Conclusion: These results suggest that the CMOR is easier to identify and to dissect with the SimLife® perfusion. As part of the surgical training of any trauma surgeon, this model could help him to keep in mind the CMOR topography, to improve the open book lesion management.
(© 2022. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)
Methods: Twelve human cadaveric pelvises have been dissected, following two protocols. 12 hemi-pelvises of the dissections were performed without perfusion (Model A), whereas the 12 other hemi-pelvises have been prepared with the SimLife
Results: The CMOR has been found in 66.67% of the cases. The length, the diameter, and the distance between the CMOR and the pubic symphysis were significantly higher in model B (respectively p = 0.029, p = 0.01, and p = 0.022).
Conclusion: These results suggest that the CMOR is easier to identify and to dissect with the SimLife
(© 2022. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)
Subject terms:
Male - Humans - Pelvis anatomy & histology - Fracture Fixation, Internal methods - Cadaver - Iliac Artery anatomy & histology - Fractures, Bone surgeryContent provider:
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Evolution of the uniformly white sclera in humans: critical updates.
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Publisher: Elsevier Science Country of Publication: England NLM ID: 9708669 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-307X (Electronic) Linking ISSN: 13646613 NLM ISO Abbreviation: Trends Cogn Sci Subsets: MEDLINE
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Kano F
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Publisher: Elsevier Science Country of Publication: England NLM ID: 9708669 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-307X (Electronic) Linking ISSN: 13646613 NLM ISO Abbreviation: Trends Cogn Sci Subsets: MEDLINE
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The human eye characteristically has exposed and uniformly white sclera, which is hypo...
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Evolution of the uniformly white sclera in humans: critical updates.
Publisher: Elsevier Science Country of Publication: England NLM ID: 9708669 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-307X (Electronic) Linking ISSN: 13646613 NLM ISO Abbreviation: Trends Cogn Sci Subsets: MEDLINE
The human eye characteristically has exposed and uniformly white sclera, which is hypothesized to have evolved to enhance eye-gaze signaling for conspecific communication. Although recent studies have put this hypothesis into question, current morphological and experimental evidence supports its key premise, albeit with recommendations for critical updates.
Competing Interests: Declaration of interests No interests are declared.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Competing Interests: Declaration of interests No interests are declared.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
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Humans - Communication - Sclera anatomy & histology - Fixation, OcularContent provider:
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Operative outcomes and fracture patterns in dysmorphic sacrums.
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Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0226040 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0267 (Electronic) Linking ISSN: 00201383 NLM ISO Abbreviation: Injury Subsets: MEDLINE
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Alejandrez A;Refaat M;Vue Y
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Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0226040 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0267 (Electronic) Linking ISSN: 00201383 NLM ISO Abbreviation: Injury Subsets: MEDLINE
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Introduction: Sacral dysmorphism has been previously reported to occur in 30 % to 40 %...
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Operative outcomes and fracture patterns in dysmorphic sacrums.
Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0226040 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0267 (Electronic) Linking ISSN: 00201383 NLM ISO Abbreviation: Injury Subsets: MEDLINE
Introduction: Sacral dysmorphism has been previously reported to occur in 30 % to 40 % of adult patients. It has been described by 6 widely accepted parameters on outlet x-ray views of the pelvis: steep alar slope, retained S1-S2 disk, presence of mamillary bodies, sacralized L5, tongue in groove SI joint, and non-round neural foramina. Studies have focused on the importance of identifying dysmorphism for safe treatment of fractures in pelvises with dysmorphic upper sacral segments. Less is known regarding whether dysmorphism may be protective against trauma. To our knowledge no studies have focused on how dysmorphic sacrums fracture compared to non-dysmorphic (ND) sacrums, and whether operative rates are different.
Aims: To assess the rate of operativefixation of sacral fractures between pelvises with dysmorphic and ND sacrums, as well as whether a difference exists in fracture morphology between groups.
Design/methods: This is a retrospective cohort study out of a single level 1 trauma center. Study participants consisted of those sustaining a pelvic ring injury who were 18 years or older in which orthopaedics was consulted, had CT imaging available, and did not have isolated acetabulum fractures. 355 subjects were included of 671 reviewed pelvic ring injuries. Sacrums were deemed dysmorphic if they met at least one of the six dysmorphic features, and it was determined whether they underwent operative intervention. Fracture classifications and patterning were identified on CT imaging. P values were set <0.05.
Results: We found that 44 % of inclusions had a dysmorphic sacrum with the most common feature to be a steep alar slope (68 %). 17.17 % of subjects with a ND sacrum underwent treatment versus 16.56 % for dysmorphic sacrums. No statistical difference regarding operativefixation rates was uncovered (p = .879). However, we found a difference in fracture patterns regarding ipsilateral posterior SI joint widening (p = 0.020).
Conclusion: Our study suggests that sacral dysmorphism is not protective against operativefixation based on no difference in operative rates between groups. However, our data supports that pelvises with dysmorphic sacrums may fracture differently based on the difference observed regarding other pelvic ring injuries.
Competing Interests: Declaration of Competing Interest We have no conflict of interest to disclose
(Copyright © 2023. Published by Elsevier Ltd.)
Aims: To assess the rate of operative
Design/methods: This is a retrospective cohort study out of a single level 1 trauma center. Study participants consisted of those sustaining a pelvic ring injury who were 18 years or older in which orthopaedics was consulted, had CT imaging available, and did not have isolated acetabulum fractures. 355 subjects were included of 671 reviewed pelvic ring injuries. Sacrums were deemed dysmorphic if they met at least one of the six dysmorphic features, and it was determined whether they underwent operative intervention. Fracture classifications and patterning were identified on CT imaging. P values were set <0.05.
Results: We found that 44 % of inclusions had a dysmorphic sacrum with the most common feature to be a steep alar slope (68 %). 17.17 % of subjects with a ND sacrum underwent treatment versus 16.56 % for dysmorphic sacrums. No statistical difference regarding operative
Conclusion: Our study suggests that sacral dysmorphism is not protective against operative
Competing Interests: Declaration of Competing Interest We have no conflict of interest to disclose
(Copyright © 2023. Published by Elsevier Ltd.)
Subject terms:
Adult - Humans - Sacrum diagnostic imaging - Sacrum surgery - Sacrum anatomy & histology - Retrospective Studies - Fracture Fixation, Internal methods - Tomography, X-Ray Computed - Fractures, Bone diagnostic imaging - Fractures, Bone surgery - Spinal Fractures - Spinal Diseases - Hip Fractures - Pelvic Bones injuriesContent provider:
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Computed Tomography-Based Morphometric Analysis of Lower Cervical Anterior Transpedicular Screw Fixation and Related Factors in the Chinese Population.
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Publisher: Elsevier Country of Publication: United States NLM ID: 101528275 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-8769 (Electronic) Linking ISSN: 18788750 NLM ISO Abbreviation: World Neurosurg Subsets: MEDLINE
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Zheng R;Chen Y;Yao G;Zeng J;Ma X;Yuan G;Hu X
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Publisher: Elsevier Country of Publication: United States NLM ID: 101528275 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-8769 (Electronic) Linking ISSN: 18788750 NLM ISO Abbreviation: World Neurosurg Subsets: MEDLINE
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Background: Anterior transpedicular screw (ATPS) internal fixation of the lower cervic...
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Computed Tomography-Based Morphometric Analysis of Lower Cervical Anterior Transpedicular Screw Fixation and Related Factors in the Chinese Population.
Publisher: Elsevier Country of Publication: United States NLM ID: 101528275 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-8769 (Electronic) Linking ISSN: 18788750 NLM ISO Abbreviation: World Neurosurg Subsets: MEDLINE
Background: Anterior transpedicular screw (ATPS) internal fixation of the lower cervical spine is an alternative for patients who cannot tolerate combined anterior and posterior surgery. The cervical vertebral anatomy varies with many factors, including age, gender, height, weight, and race.
Methods: Three-dimensional (3D) CT reconstructions were performed on 122 patients. We selected the best level and measured the relevant parameters on both sides of the cervical vertebrae.
Results: We identified the entry point and orientation parameters of ATPSfixation for the C3-C7 vertebrae, and analyzed cervical pedicle parameters. Outer pedicle width (OPW), outer pedicle height (OPH), and pedicle axis length (PAL) were not correlated with body weight and age, but were positively correlated with body height (P < 0.05). After multiple linear regression analysis to exclude the effects of body height, no significant differences in OPW, OPH, and PAL were found between male and female subjects at most cervical levels. Pedicle cortical thickness was negatively correlated with age (P < 0.05). The percentage of pedicles with OPW <4.5 mm was: C3, 38.10%; C4, 34.92%; C5, 12.70%; C6, 9.52%; and C7, 0%. The percentage of pedicles with OPWs ≤4.5 mm, ≤4.0 mm, and ≤3.5 mm was higher among subjects with body height <160 cm.
Conclusions: This study presents the internal anatomy of the cervical spine and provides accurate preoperative evaluation data for ATPSfixation . OPW, OPH, and PAL are positively correlated with body height, while pedicle cortical thickness is negatively correlated with age.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Methods: Three-dimensional (3D) CT reconstructions were performed on 122 patients. We selected the best level and measured the relevant parameters on both sides of the cervical vertebrae.
Results: We identified the entry point and orientation parameters of ATPS
Conclusions: This study presents the internal anatomy of the cervical spine and provides accurate preoperative evaluation data for ATPS
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Subject terms:
Humans - Male - Female - Neck - Cervical Vertebrae diagnostic imaging - Cervical Vertebrae surgery - Cervical Vertebrae anatomy & histology - Fracture Fixation, Internal - China - Bone Screws - Tomography, X-Ray Computed methodsContent provider:
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