scholarly journals Relationship Between C2 Semispinalis Cervicis Preservation and C2 Spinous Process Morphology During Cervical Laminoplasty Involving C3

2021 ◽  
pp. 219256822110624
Author(s):  
Sang Yun Seok ◽  
Dong-Ho Lee ◽  
Hyung Rae Lee ◽  
Sehan Park ◽  
Jae Hwan Cho ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Neck Pain ◽  
Clinical Outcomes ◽  
Cervical Myelopathy ◽  
Spinous Process ◽  
Three Dimensional ◽  
Anatomical Variations ◽  
Cervical Laminoplasty ◽  
The Relationship

Study Design Retrospective study Objectives Due to anatomical variations in the semispinalis cervicis insertion in the C2 spinous process, complete preservation is not always possible when the C3 level is included in a cervical laminoplasty. Three-dimensional computed tomography was used to evaluate the relationship between the incidence of semispinalis cervicis injury and the C2 inter-spinous angle. Methods We included 95 patients who underwent a cervical laminoplasty that included a C3 laminectomy for cervical myelopathy. Patients with a C2 inter-spinous angle above and below 60° were classified into wide- and narrow-angled groups, respectively (n = 48 and n = 47). Whether the C2 semispinalis cervicis insertion was preserved, or detached and reattached was reviewed from surgical records. The pre and postoperative C2-C7 lordosis and range of motion (ROM) were measured, and clinical outcomes were obtained from the patient charts. Results The C2 semispinalis cervicis was preserved in 47 patients (97.9%) in the wide-angled group but only in 14 patients (29.8%) in the narrow-angled group ( P < .001). The postoperative C2-C7 lordosis extension and ROM were significantly greater in the wide-angled ( P = .048 and .036). Postoperative neck pain was significantly greater in the narrow-angled ( P = .018). Conclusions The morphology of the C2 spinous process indicates that a C2 semispinalis cervicis insertion preservation is possible during a cervical laminoplasty that includes a C3 laminectomy. A careful surgical procedure should be conducted when the C2 inter-spinous angle is above 60° to increase the likelihood of achieving this preservation and thereby obtaining a more favorable clinical outcomes.

Preoperative determination of anatomic variations of the small saphenous vein for varicose vein surgery by three-dimensional computed tomography venography

2011 ◽  
Vol 27 (5) ◽  
pp. 235-241 ◽  
Author(s):  
S-Y Kim ◽  
E-A Park ◽  
Y-C Shin ◽  
S-I Min ◽  
W Lee ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Saphenous Vein ◽  
Varicose Vein ◽  
Preoperative Evaluation ◽  
Three Dimensional ◽  
Anatomical Variations ◽  
The Impact ◽  
The Relationship ◽  
Computed Tomography Venography

Objective To define the anatomical variations of small saphenous vein (SSV) for varicose vein (VV) surgery by three-dimensional computed tomography venography (3D-CTV) and to analyse the impact of this preoperative evaluation on surgical outcomes. Methods A total of 120 consecutive limbs with SSV insufficiency having undergone VV surgery from January 2005 until December 2007 were enrolled. The medical records and images were analysed retrospectively. Results The relationship between SSV and gastrocnemial vein (GNV) were categorized into two: (a) SSV and GNV drained to popliteal vein (PV) separately (100 limbs, 87%) and (b) SSV and GNV made common channel which drained to PV (15 limbs, 13%). Saphenopopliteal junction morphology was normal (75 limbs), severe tortuosity near PV (19 limbs), ampullary ectasia (4 limbs) and duplicated drainage to PV (2 limbs). No recurrence of VV was noted. Conclusions CTV can provide thorough preoperative anatomic information of the SSV variations and reduce the recurrence of VV.

Total Wrist Arthroplasty Alignment and Its Potential Association with Clinical Outcomes

2021 ◽  
Author(s):  
Bardiya Akhbari ◽  
Kalpit N. Shah ◽  
Amy M. Morton ◽  
Janine Molino ◽  
Douglas C. Moore ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Clinical Outcomes ◽  
Three Dimensional ◽  
Radial Component ◽  
Single Type ◽  
Radiographic Images ◽  
Computed Tomography Images ◽  
Total Wrist Arthroplasty ◽  
Flexion Extension ◽  
Wrist Arthroplasty

Abstract Purpose There is a lack of quantitative research that describes the alignment and, more importantly, the effects of malalignment on total wrist arthroplasty (TWA). The main goal of this pilot study was to assess the alignment of TWA components in radiographic images and compare them with measures computed by three-dimensional analysis. Using these measures, we then determined if malalignment is associated with range of motion (ROM) or clinical outcomes (PRWHE, PROMIS, QuickDash, and grip strength). Methods Six osteoarthritic patients with a single type of TWA were recruited. Radiographic images, computed tomography images, and clinical outcomes of the wrists were recorded. Using posteroanterior and lateral radiographs, alignment measurements were defined for the radial and carpal components. Radiographic measurements were validated with models reconstructed from computed tomography images using Bland–Altman analysis. Biplanar videoradiography (<1mm and <1 degree accuracy) was used to capture and compute ROM of the TWA components. Linear regression assessed the associations between alignment and outcomes. Results Radiographic measures had a 95% limit-of-agreement (mean difference ±  1.96 × SD) of 3 degrees and 3mm with three-dimensional values, except for the measures of the carpal component in the lateral view. In our small cohort, wrist flexion–extension and radial–ulnar deviation were correlated with volar–dorsal tilt and volar–dorsal offset of the radial component and demonstrated a ROM increase of 3.7 and 1.6 degrees per degree increase in volar tilt, and 10.8 and 4.2 degrees per every millimeter increase in volar offset. The carpal component's higher volar tilt was also associated with improvements in patient-reported pain. Conclusions We determined metrics describing the alignment of TWA, and found the volar tilt and volar offset of the radial component could potentially influence the replaced wrist's ROM. Clinical Relevance TWA component alignment can be measured reliably in radiographs, and may be associated with clinical outcomes. Future studies must evaluate its role in a larger cohort.

scholarly journals Surgically Relevant Bony Anatomical Variations in Paraclinoid Aneurysms-Three-Dimensional Multi-Detector Row Computed Tomography-Based Study

2017 ◽  
Vol 08 (03) ◽  
pp. 330-334 ◽  
Author(s):  
K. Suprasanna ◽  
Ashvini Kumar
Keyword(s):  
Computed Tomography ◽  
Cerebral Angiography ◽  
Three Dimensional ◽  
Anatomical Variations ◽  
Type I ◽  
Anterior Clinoid Process ◽  
Multiplanar Reconstructions ◽  
Paraclinoid Aneurysm ◽  
Paraclinoid Aneurysms ◽  
Caroticoclinoid Foramen

ABSTRACT Objective: To evaluate the proportion of surgically relevant anatomical variations such as caroticoclinoid foramen, interclinoid osseous bridge, and anterior clinoid pneumatization in patients with paraclinoid aneurysms based on computed tomography (CT) cerebral angiography studies. Materials and Methods: Fifty-four CT cerebral angiography studies showing paraclinoid aneurysms involving the cavernous, clinoid, and supraclinoid internal carotid artery (ICA) were retrospectively evaluated. Source images were processed for three-dimensional reconstructions to evaluate the presence and type of caroticoclinoid foramen, interclinoid osseous bridge, and multiplanar reconstructions with bone algorithm to study the type of pneumatization. Results: The study included 30 female and 24 male patients with mean age of 45.61 (10.47) years. Among the 108 sides studied in 54 patients, caroticoclinoid foramen was seen in 24 cases (22.22%), interclinoid osseous bridge was seen unilaterally in 1 case (0.9%), and pneumatization of anterior clinoid process occurred in 12 cases (11.11%). Incomplete caroticoclinoid foramen (11 cases) and Type I pneumatization (7 cases) were seen to be predominant subtypes. There was no statistically significant gender difference in the occurrence of caroticoclinoid foramen and anterior clinoid pneumatization. Seventy-four aneurysms were detected in 54 patients. Based on their location, 46 aneurysms involved supraclinoid ICA, 18 aneurysms in the clinoid segment, and 10 aneurysms in the cavernous segment. Caroticoclinoid foramen was most prevalent in clinoid aneurysms with 12 cases occurring in the clinoid segment. Conclusion: Notable proportions of caroticoclinoid foramen and pneumatization occur in cases of paraclinoid aneurysm. Radiological reports should emphasize on these surgically relevant bony anatomical variations.

scholarly journals The Relationship between Dental Follicle Width and Maxillary Impacted Canines’ Descriptive and Resorptive Features Using Cone-Beam Computed Tomography

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
İlhan Metin Dağsuyu ◽  
Rıdvan Okşayan ◽  
Fatih Kahraman ◽  
Mehmet Aydın ◽  
İbrahim Şevki Bayrakdar ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Three Dimensional ◽  
Cone Beam ◽  
Dental Follicle ◽  
Impacted Canines ◽  
Impacted Canine ◽  
The Relationship ◽  
Maxillary Impacted Canine

Objectives. To assess the relationship between dental follicle width and maxillary impacted canines’ descriptive and resorptive features with three-dimensional (3D) cone-beam computed tomography (CBCT). Methods. The study comprised 102 patients with cone-beam computed tomography 3D images and a total of 140 impacted canines. The association between maxillary impacted canine dental follicle width and the variables of gender, impaction side (right and left), localization of impacted canine (buccal, central, and palatal), and resorption of the adjacent laterals was compared. Measurements were analyzed with Student’s t-test, Kruskal-Wallis test, and Mann–Whitney U statistical test. Results. According to gender, no statistically significant differences were found in the follicle size of the maxillary impacted canine between males and females (p>0.05). Widths of the follicles were determined for the right and left impaction sides, and no statistically significant relation was found (p>0.05). There were statistically significant differences between root resorption degrees of lateral incisors and maxillary impacted canine follicle width (p<0.05). Statistically significant higher follicle width values were present in degree 2 (mild) resorption than in degree 1 (no) and degree 3 (moderate) resorption samples (p<0.05). Conclusions. No significant correlation was found between follicle width and the variables of gender, impaction side, and localization of maxillary impacted canines. Our study could not confirm that increased dental follicle width of the maxillary impacted canines exhibited more resorption risk for the adjacent lateral incisors.

scholarly journals Morphological parameters of fourth lumbar spinous process palpation: a three-dimensional reconstruction of computed tomography

2020 ◽  
Author(s):  
Qi Feng ◽  
Lei Zhang ◽  
Mengyao Zhang ◽  
Youliang Wen ◽  
Ping Zhang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Spinous Process ◽  
Three Dimensional ◽  
Anatomical Landmark ◽  
Morphological Parameters ◽  
Accuracy Rate ◽  
Dimensional Reconstruction ◽  
Surface Localization ◽  
Accurate Position ◽  
Anatomical Parameters

Abstract Background: The localization of lumbar fourth spinous process (L4-SP) is an important anatomical landmark, and identifying its accurate position is essential for the diagnosis and treatment of waist diseases. Methods: Five hundred participants were scanned with positive and lateral computed tomography (CT), which aimed to clarify anatomic characteristics of L4-SP. Anatomical parameters of the surface localization of L4-SP were measured and recorded through a three-dimensional (3D) reconstruction Results: Five hundred participates were classified into three types according to the position of BC with the iliac spine. There are just 266 that the line between the highest point of the iliac spine on both sides located on L4-SP (type Ⅰ, 53.20%), 16 above L4-SP (type Ⅱ, 3.20%), and 218 below L4-SP (type Ⅲ, 43.60%). BC in type Ⅰ (15.92±1.30 mm) is longer than type Ⅲ (15.56±1.32 mm). While the angle combined with AB and BC are different in the three groups, the angle in type Ⅰ (173.00±4.83°) is larger than that in type Ⅱ (164.69±5.50°) and type Ⅲ (159.45±8.39°). Other measurements were not found any significant differences between above. Conclusion : The traditional palpation for L4-SP is not absolutely exact. The accuracy rate is only 53.20%, and the errors may cause serious consequences.

scholarly journals Unusual pulmonary vein variant in a patient with right upper lobe lung cancer

2020 ◽  
Vol 2020 (7) ◽  
Author(s):  
Rika Tobita ◽  
Ryota Nakamura ◽  
Yoshihisa Inage
Keyword(s):  
Computed Tomography ◽  
Lung Cancer ◽  
Pulmonary Artery ◽  
Pulmonary Vein ◽  
Thoracoscopic Surgery ◽  
Lung Resection ◽  
Three Dimensional ◽  
3D Ct ◽  
Anomalous Pulmonary Vein ◽  
The Relationship

Abstract It is essential to understand individual pulmonary anatomy, and the relationship between the tumor and surrounding organ, when lung resection is conducted. Recently, many anomalous pulmonary venous variations have been detected using three-dimensional computed tomography (3D-CT). Herein, we report the case of a 62-year-old women with lung cancer and an anomalous right upper lobe pulmonary vein that drained into the left atrium between the pulmonary artery and bronchus. Preoperative 3D-CT clearly demonstrated the anomalous pulmonary vein, and we safely performed lung resection by thoracoscopic surgery. Therefore, 3D-CT images can help ensure the safety of patients with aberrant vasculature during lung resection.

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