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The impact of spinopelvic morphology on the short-term outcome of pedicle subtraction osteotomy in 104 patients

Karin Eskilsson, Deep Sharma, Christer Johansson, and Rune Hedlund

/maximum score = 1.00, representing perfect HRQOL Global assessment Patient satisfaction at final follow-up classified as much better, better, unchanged, or worse All patients had a standardized full-length standing radiograph taken before surgery, immediately following surgery, and at a minimum of 1-year follow-up. The radiological variables were measured using Surgimap Spine by a single observer 1 ( Table 2 ). TABLE 2. Radiographic measurements Radiographic Measurement Definition SVA The distance btwn C-7 plumb line & superior posterior part of S-1 vertebra LL The angle

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The relationship between Chiari 1.5 malformation and sleep-related breathing disorders on polysomnography

Nicholas Sader, Walter Hader, Aaron Hockley, Valerie Kirk, Adetayo Adeleye, and Jay Riva-Cambrin

-disordered breathing symptoms  Snoring 7 (87.5%)  Gasping 4 (50%)  Witnessed apnea 7 (87.5%)  Mouth breathing 5 (62.5%) Unless otherwise indicated, values are expressed as the number of patients (%). * Based on 7 individual patients; i.e., 1 patient had 2 decompressions. Percentages for symptoms are based on 8 cases. Preoperative Radiographic Measurements Table 2 summarizes the radiographic measurements for the patient group before surgical decompression. The median tonsillar and obex descent values below the

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Determining the best vertebra for measuring pelvic incidence and spinopelvic parameters in adult spinal deformity patients with transitional anatomy

Fares Ani, Themistocles S. Protopsaltis, Yesha Parekh, Khalid Odeh, Renaud Lafage, Justin S. Smith, Robert K. Eastlack, Lawrence Lenke, Frank Schwab, Gregory M. Mundis Jr., Munish C. Gupta, Eric O. Klineberg, Virginie Lafage, Robert Hart, Douglas Burton, Christopher P. Ames, Christopher I. Shaffrey, and Shay Bess

history of prior spine surgery. All patients underwent 36-inch standing scoliosis radiography without external support, such as walkers. Each image was de-identified to respect HIPAA guidelines and sent to a central location through a secure FTP connection where they were measured. All radiographic measurements were performed at a location using standard techniques for establishing parameters. Radiographic analysis was performed on baseline radiographs using dedicated and validated software (SpineView, SpineLab, ENSAM, and Surgimap). 12 , 13 Spinopelvic measurements

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Prediction of clinical height gain from surgical posterior correction of idiopathic scoliosis

Tristan Langlais, Stephane Verdun, Roxane Compagnon, Catalin Ursu, Claudio Vergari, Hugo Barret, and Christian Morin

. Preoperative measurement of the T1–L5 distance ( vertical line ) on a biplanar low-dose radiograph. The measurement is performed simultaneously in the lateral ( A ) and frontal ( B ) radiographs to improve accuracy (3D measurement). The horizontal line corresponds to a level marker to facilitate simultaneous measurement on the lateral and frontal radiographs. Figure is available in color online only. For all patients, including those for whom only conventional radiography was available, radiographic measurements were performed with fully integrated, digitally calibrated

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Results of degenerative spondylolisthesis treated with posterior decompression alone via a new surgical approach

Tomoaki Kinoshita, Isao Ohki, Kenneth R. Roth, Kageharu Amano, and Hideshige Moriya

radiographic measurement studies. Lumbar instability was defined radiographically as greater than 8% translation or 12° angular displacement. 19 Unstable spondylolisthesis that met the criteria was further categorized by measuring the angle of slippage on lateral flexion x-ray films (mildly unstable defined as < 10°; moderately unstable, ≥10° but < 15°; and severely unstable, ≥ 15°). Facet joint orientation—the angle between the facet joint plane and the coronal plane—was measured at the level of the superior endplate of the vertebra below the level of the lesion on

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Validation of prone intraoperative measurements of global spinal alignment

Max Vaynrub, Brandon P. Hirsch, Jared Tishelman, Dennis Vasquez-Montes, Aaron J. Buckland, Thomas J. Errico, and Themistocles S. Protopsaltis

limb represents the recreated bicoxofemoral axis ( star ). Fig. 2. Global sagittal parameters projected on intraoperative radiograph: LPA ( A ), T9PA ( B ), T4PA ( C ), and TPA ( D ). Statistical Analysis Mixed-model 2-way intraclass correlation coefficient (ICC) was calculated to assess interobserver and intraobserver reliability. ICCs are used to assess for consistency and reproducibility of the radiographic measurements made by the various observers. ICCs were assessed using the following ranges: excellent (0.75–1.0), good (0.60–0.74), fair (0.40–0.59), and poor

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Association between lumbar sacralization and increased degree of vertebral slippage and disc degeneration in patients with L4 spondylolysis

Xinqiang Yao, Ruoting Ding, Junhao Liu, Siyuan Zhu, Jingshen Zhuang, Zhongyuan Liu, Hui Jiang, Dongbin Qu, Qingan Zhu, and Jianting Chen

= 1.801 0.180 Diabetes (yes/no) 4/61 2/35 χ 2 = 0.024 0.877 Data are expressed as number of patients or mean ± SD. The chi-square test was used for categorical variables, and the Student t-test was used for continuous variables. Comparisons of the radiographic measurements in the 2 groups are summarized in Table 2 . The sacralization group showed a greater mean slip percentage compared with the no-sacralization group (mean 34.5% [SD 14.1%] vs 24.2% [SD = 11.0%], t = −3.841, p < 0.001). Degenerative change of L4–5 disc was significantly greater in the sacralization

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Assessment of craniocervical motion in Down syndrome: a pilot study of two measurement techniques

Jonathan E. Martin, Brandon G. Rocque, Andrew Jea, Richard C. E. Anderson, Joshua Pahys, and Douglas Brockmeyer

also recognized, 21 the definition of instability at this level is vague, 12 and substantiation of the risk due to hypermobility is lacking. Despite the absence of supportive data, several groups recommend fusion based on specific radiographic measurements. 2 , 13 , 19 Given the potential for catastrophic injury in DS patients, 13 the ability to identify presymptomatic patients at risk is desirable. Although static radiographs have been used by some providers 8 , 14 for this purpose, Pueschel and Scola 17 and Selby et al. 18 demonstrated variable measurements

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Clinical and radiographic evaluation of posterior surgical correction for the treatment of moderate to severe post-tuberculosis kyphosis in 36 cases with a minimum 2-year follow-up

Clinical article

Yan Zeng, Zhongqiang Chen, Qiang Qi, Zhaoqing Guo, Weishi Li, Chuiguo Sun, and Andrew P. White

radiographic measurements before surgery are listed in Table 1 . TABLE 1: Preoperative and postoperative radiographic measurements and clinical data * Time Kyphotic Angle (°) Thoracic Kyphosis (°) Lumbar Lordosis (°) Cervical Lordosis (°) Sagittal Balance (mm) Back Pain VAS Score ASIA Grade (no. of cases) E D C BS 89.3 ± 22.9 −8.6 ± 11.1 72.0 ± 20.4 6.5 ± 16.3 −16.7 ± 36.6 2.0 ± 2.9 12 16 8 at FU 29.3 ± 16.2 11.7 ± 15.5 47.6 ± 12.1 4.7 ± 13.6 −8.2 ± 17.8 0.7 ± 1.3 21 11

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Asymmetrical pedicle subtraction osteotomy for correction of concurrent sagittal-coronal imbalance in adult spinal deformity: a comparative analysis

Darryl Lau, Alexander F. Haddad, Vedat Deviren, and Christopher P. Ames

described in detail in a previous publication. 8 Patient Data A retrospective review of medical records was performed to obtain data regarding patient demographics, baseline clinical variables, and radiographic measurements. Demographic characteristics and clinical variables of interest included age, sex, weight, history of prior fusion, preoperative weakness, and comorbidities (cardiovascular disease, hypertension, vascular disease, diabetes mellitus, pulmonary disease, renal disease, liver disease, stroke, psychiatric diagnosis, hyperlipidemia, inflammatory arthropathy