Topic
Coronal plane
About: Coronal plane is a research topic. Over the lifetime, 3697 publications have been published within this topic receiving 76161 citations. The topic is also known as: frontal plane.
Papers published on a yearly basis
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Papers
TL;DR: This study suggests that restoration of a more normal sagittal balance is the critical goal for any reconstructive spine surgery and suggests that magnitude of coronal deformity and extent of Coronal correction are less critical parameters.
Abstract: Study design This study is a retrospective review of the initial enrollment data from a prospective multicentered study of adult spinal deformity. Objectives The purpose of this study is to correlate radiographic measures of deformity with patient-based outcome measures in adult scoliosis. Summary of background data Prior studies of adult scoliosis have attempted to correlate radiographic appearance and clinical symptoms, but it has proven difficult to predict health status based on radiographic measures of deformity alone. The ability to correlate radiographic measures of deformity with symptoms would be useful for decision-making and surgical planning. Methods The study correlates radiographic measures of deformity with scores on the Short Form-12, Scoliosis Research Society-29, and Oswestry profiles. Radiographic evaluation was performed according to an established positioning protocol for anteroposterior and lateral 36-inch standing radiographs. Radiographic parameters studied were curve type, curve location, curve magnitude, coronal balance, sagittal balance, apical rotation, and rotatory subluxation. Results The 298 patients studied include 172 with no prior surgery and 126 who had undergone prior spine fusion. Positive sagittal balance was the most reliable predictor of clinical symptoms in both patient groups. Thoracolumbar and lumbar curves generated less favorable scores than thoracic curves in both patient groups. Significant coronal imbalance of greater than 4 cm was associated with deterioration in pain and function scores for unoperated patients but not in patients with previous surgery. Conclusions This study suggests that restoration of a more normal sagittal balance is the critical goal for any reconstructive spine surgery. The study suggests that magnitude of coronal deformity and extent of coronal correction are less critical parameters.
1,230 citations
TL;DR: A series of 115 Denham knee replacements performed between 1976 and 1981 using the earliest design of components, inserted with intramedullary guide rods is reported, finding accurate coronal alignment appears to be an important factor in prevention of loosening.
Abstract: Maquet's line passes from the centre of the femoral head to the centre of the body of the talus. The distance of this line from the centre of the knee on a long-leg radiograph provides the most accurate measure of coronal alignment. Malalignment causes abnormal forces which may lead to loosening after knee replacement. We report a series of 115 Denham knee replacements performed between 1976 and 1981 using the earliest design of components, inserted with intramedullary guide rods. Patients were assessed clinically and long-leg standing radiographs were taken before operation, soon after surgery and up to 12 years later. In two-thirds of the knees (68%) Maquet's line passed through the middle third of the prosthesis on postoperative films and the incidence of subsequent loosening was 3%. When Maquet's line was medial or lateral to this, an error of approximately +/- 3 degrees, the incidence of loosening at a median period of eight years was 24%. This difference is highly significant (p = 0.001). Accurate coronal alignment appears to be an important factor in prevention of loosening. Means of improving the accuracy of alignment and of measuring it on long-leg radiographs are discussed.
1,108 citations
TL;DR: Coronal plane computerized tomographic scanning has dramatically improved the imaging of paranasal sinus anatomy as compared to sinus radiographs, and subtle bony anatomic variations and mucosal abnormalities of this region are being detected.
Abstract: Coronal plane computerized tomographic (CT) scanning has dramatically improved the imaging of paranasal sinus anatomy as compared to sinus radiographs. Increasingly, subtle bony anatomic variations and mucosal abnormalities of this region are being detected. Data regarding the “background” prevalence of these findings are needed to determine their clinical relevance.
A detailed analysis of coronal plane CT scans of the paranasal sinuses obtained in 202 consecutively imaged patients was conducted. Special attention was directed toward identifying bony anatomic variations and mucosal abnormalities. Anatomic variations studied included pneumatization of the middle turbinate, paradoxical curvature of the middle turbi-nate, Haller's cells, and pneumatization of the unci-nate process. Such bony anatomic variations were detected in 131 (64.9%) of 202 patients and were found with a similar frequency in patients scanned for sinus complaints and in those scanned for nonsinus reasons.
Mucosal abnormalities were detected in 168 (83.2%) of 202 patients. For those patients scanned during the evaluation of sinus-like complaints, mucosal abnormalities were noted in 153 (92.2%) of 166 cases, and were predominantly detected in the anterior ethmoid region. For patients scanned during nonsinus evaluations, mucosal abnormalities were detected in 15 (41.7%) of 36 cases, without predilection for the anterior ethmoid region.
Discussion regarding the prevalence and clinical significance of paranasal sinus bony anatomic variations and mucosal abnormalities is included as a guide to assist the otolaryngologist and/or radiologist in the evaluation of coronal sinus CT scans.
1,070 citations
TL;DR: There is a wide range of normal sagittal alignment of the thoracic and lumbar spines, and when using composite measurements of the combined frontal and sagittal plane deformity of scoliosis, this widerange of sagittal variance should be taken into consideration.
Abstract: Recent advances in spinal instrumentation have brought about a new emphasis on the three-dimensional spinal deformity of scoliosis and especially on the restoration of normal sagittal plane contours. Normal alignment in the coronal and transverse planes is easily defined; however, normal sagittal plane alignment is not so simple. This retrospective study was undertaken to increase the understanding of the normal alignment of the spine in the sagittal plane, with a special emphasis on the thoracolumbar junction. Measurements were made from the lateral radiographs of 102 subjects with clinically and radiographically normal spines. Cobb measurements of the thoracic kyphosis (T3-T12), the thoracolumbar junction (T10-T12 and T12-L2), and the lumbar lordosis (L1-L5) were determined. The spices of the thoracic kyphosis and lumbar lordosis also were determined. Using a computerized digitalizing table, the segmental angulation was determined at each level from T1-2 to L5-S1. In conclusion, there is a wide range of normal sagittal alignment of the thoracic and lumbar spines. When using composite measurements of the combined frontal and sagittal plane deformity of scoliosis, this wide range of sagittal variance should be taken into consideration. Using norms established here for segmental alignment, areas of hypokyphosis and hypolordosis commonly seen in scoliosis can be more objectively evaluated. The thoracolumbar junction is for all practical purposes straight; lumbar lordosis usually starts at L1-2 and gradually increases at each level caudally to the sacrum.
776 citations
Book•
21 Feb 2003
TL;DR: Frontal plane mechanical and anatomic axis planning and six-Axis deformity analysis and correction are recommended for TKR and total hip replacement.
Abstract: Normal lower limb alignment and joint orientation.- Malalignment and malorientation in the frontal plane.- Radiographic assessment of lower limb deformities.- Frontal plane mechanical and anatomic axis planning.- Osteotomy concepts.- Sagittal plane deformities.- Oblique plane deformities.- Translation and angulation-translation deformities.- Rotation and angulation-rotation deformities.- Length considerations.- Hardware and osteotomy considerations.- Six-Axis deformity analysis and correction.- Consequences of malalignment.- Malalignment due to ligamentous laxity of the knee.- Knee joint line deformity sources of malalignment.- Realignment for mono-compartment osteoarthritis of the knee.- Sagittal plane knee considerations.- Ankle and foot considerations.- Hip joint considerations.- Growth plate considerations.- Gait considerations.- Dynamic deformities and lever arm considerations.- TKR and total hip replacement.
769 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2026 | 4 |
| 2025 | 339 |
| 2024 | 724 |
| 2023 | 1,162 |
| 2022 | 2,107 |
| 2021 | 337 |