scholarly journals Lumbar lordosis obtained with and without intervertebral thoracic spine motions during rhythmic gymnastics movements: a preliminary study

2020 ◽  
Vol 23 (sup1) ◽  
pp. S232-S234
Author(s):  
Y. Poulet ◽  
C. Eyssartier ◽  
T. Marsan ◽  
L. Valdes-Tamayo ◽  
M. Robert ◽  
...  
Keyword(s):  
Thoracic Spine ◽  
Lumbar Lordosis ◽  
Rhythmic Gymnastics ◽  
Preliminary Study

The utility of supine radiographs in the assessment of thoracic flexibility and risk of proximal junctional kyphosis

2021 ◽  
pp. 1-7
Author(s):  
Francis Lovecchio ◽  
Renaud Lafage ◽  
Jonathan Charles Elysee ◽  
Alex Huang ◽  
Bryan Ang ◽  
...  
Keyword(s):  
Thoracic Spine ◽  
Lumbar Lordosis ◽  
Pelvic Tilt ◽  
Pelvic Incidence ◽  
Vertical Axis ◽  
Control Analysis ◽  
Proximal Junctional Kyphosis ◽  
Sagittal Vertical Axis ◽  
Significant Difference ◽  
Junctional Kyphosis

OBJECTIVE Supine radiographs have successfully been used for preoperative planning of lumbar deformity corrections. However, they have not been used to assess thoracic flexibility, which has recently garnered attention as a potential contributor to proximal junctional kyphosis (PJK). The purpose of this study was to compare supine to standing radiographs to assess thoracic flexibility and to determine whether thoracic flexibility is associated with PJK. METHODS A retrospective study was conducted of a single-institution database of patients with adult spinal deformity (ASD). Sagittal alignment parameters were compared between standing and supine and between pre- and postoperative radiographs. Thoracic flexibility was determined as the change between preoperative standing thoracic kyphosis (TK) and preoperative supine TK, and these changes were measured over the overall thoracic spine and the fused portion of the thoracic spine (i.e., TK fused). A case-control analysis was performed to compare thoracic flexibility between patients with PJK and those without (no PJK). The cohort was also stratified into three groups based on thoracic flexibility: kyphotic change (increased TK), lordotic change (decreased TK), and no change. The PJK rate was compared between the cohorts. RESULTS A total of 101 patients (mean 63 years old, 82.2% female, mean BMI 27.4 kg/m2) were included. Preoperative Scoliosis Research Society–Schwab ASD classification showed moderate preoperative deformity (pelvic tilt 27.7% [score ++]; pelvic incidence–lumbar lordosis mismatch 44.6% [score ++]; sagittal vertical axis 42.6% [score ++]). Postoperatively, the average offset from age-adjusted alignment goals demonstrated slight overcorrection in the study sample (−8.5° ± 15.6° pelvic incidence–lumbar lordosis mismatch, −29.2 ± 53.1 mm sagittal vertical axis, −5.4 ± 10.8 pelvic tilt, and −7.6 ± 11.7 T1 pelvic angle). TK decreased between standing and supine radiographs and increased postoperatively (TK fused: −25.3° vs −19.6° vs −29.9°; all p < 0.001). The overall rate of radiographic PJK was 23.8%. Comparisons between PJK and no PJK demonstrated that offsets from age-adjusted alignment goals were similar (p > 0.05 for all). There was a significant difference in the PJK rate when stratified by thoracic flexibility cohorts (kyphotic: 0.0% vs no change: 18.4% vs lordotic: 35.0%; p = 0.049). Logistic regression revealed thoracic flexibility (p = 0.045) as the only independent correlate of PJK. CONCLUSIONS Half of patients with ASD experienced significant changes in TK during supine positioning, a quality that may influence surgical strategy. Increased thoracic flexibility is associated with PJK, possibly secondary to fusing the patient’s spine in a flattened position intraoperatively.

scholarly journals Influence of posture on relationships between pelvic parameters and lumbar lordosis: Comparison of the standing, seated, and supine positions. A preliminary study

2018 ◽  
Vol 104 (5) ◽  
pp. 565-568 ◽  
Author(s):  
Thomas Chevillotte ◽  
Pierre Coudert ◽  
Derek Cawley ◽  
Houssam Bouloussa ◽  
Simon Mazas ◽  
...  
Keyword(s):  
Lumbar Lordosis ◽  
Pelvic Parameters ◽  
Preliminary Study

scholarly journals Contribution of hip extension and lumbar lordosis during back walkover performed by rhythmic and woman artistic gymnasts: a preliminary study

2020 ◽  
Vol 23 (sup1) ◽  
pp. S101-S103
Author(s):  
C. Eyssartier ◽  
Y. Poulet ◽  
T. Marsan ◽  
L. Valdes-Tamayo ◽  
S. El Oujaji ◽  
...  
Keyword(s):  
Lumbar Lordosis ◽  
Preliminary Study ◽  
Hip Extension

scholarly journals Effects of a Verbal Intervention for Head and Neck Posture on Lumbar Lordosis Angles in Healthy Young and Older Adults: a Preliminary Study

2022 ◽  
Author(s):  
Meiling Zhai ◽  
Yongchao Huang ◽  
Shi Zhou ◽  
Jiayun Feng ◽  
Chaolei Pei ◽  
...  
Keyword(s):  
Older Adults ◽  
Head And Neck ◽  
Inclination Angle ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Standing Posture ◽  
Kyphosis Angle ◽  
Preliminary Study ◽  
Rehabilitation Strategy ◽  
Anterior Angle

Abstract Background Postural rehabilitation plays an important role in the treatment of non-specific low back pain. Although pelvic inclination has been widely used to improve lumbar lordosis, the effect of cervical anterior inclination on lumbar lordosis in young and older adults, in sitting and standing posture is still unclear. This preliminary study was designed to examine the influence of changing the cervical anterior angle on the lumbar lordosis angle, through alterations of the head position under the natural sitting and standing conditions, aiming to provide a basis for establishing a new postural rehabilitation strategy.Methods Thirty-eight older (68.4 ± 5.9 years old) and 36 young (24.0 ± 2.2 years old) healthy adults participated in this study. The four spinal regional angles - cervical anterior angle, thoracic kyphosis angle, lumbar lordosis angle, and pelvic foreword inclination angle were measured in standing and relaxed sitting postures to determine the effects of a postural cueing, “inclining head backward and performing chin tuck”, for the head and neck posture on lumbar lordosis angle.Results In the standing posture, the pelvic foreword inclination angle in the older group was significantly smaller (P <0.001) than that in the young group, and increased significantly (P <0.001) post the postural cueing. In addition, the thoracic kyphosis angle in the standing (P = 0.001) and sitting (P = 0.003) positions was significantly reduced post the postural cueing. However, the lumbar lordosis angle post postural cueing increased significantly in both the standing position (P <0.001) and sitting position (P <0.001).Conclusion The results suggest that increasing the cervical anterior angle can indeed increase the lumbar lordosis angle, and the cervical anterior inclination can be used as an alternative to pelvic foreward inclination to improve the lumbar lordosis angle. Furthermore, the change of head and neck posture can reduce the thoracic kyphosis angle, making it possible to establish a new non-invasive body posture rehabilitation strategy.(approval number TJUS2019032)

scholarly journals Preliminary Study on Psychomotor Abilities Decisive for Technical Routines in Rhythmic Gymnastics

2020 ◽  
Vol 11 (4Sup1) ◽  
pp. 62-80
Author(s):  
Ștefania Chiriac ◽  
◽  
Silvia Teodorescu ◽  
Aura Bota ◽  
◽  
...  
Keyword(s):  
Previous Analysis ◽  
Technical Skills ◽  
Travel Speed ◽  
Dynamic Tests ◽  
Rhythmic Gymnastics ◽  
Preparatory Stage ◽  
Preliminary Study ◽  
Static And Dynamic Tests ◽  
Key Features ◽  
Rhythmic Gymnasts

The aim of the research is to establish the level of some psychomotor abilities by determining the rhythmic gymnasts’ capability to perform apparatus-specific technical skills within the composition of their routines, according to the provisions of the 2017-2020 Code of Points. The Wireless training timer (Witty) testing equipment was used to assess relevant types of speed in junior rhythmic gymnasts. The reaction time, execution time and travel speed time were measured in similar technical conditions or close to those encountered in training and competitions. The 14 gymnasts included in the research, aged between 13 and 15 years, are part of the National Olympic Centre for juniors in Arad, all being enrolled in the preparatory stage of training. The analysis of the data from both static and dynamic tests established a referential for the forms of speed to be enhanced by means of apparatus-specific technical routines. Results provide interesting information on the average values, inter-individual differences and homogeneity-related issues (which are relevant especially for gymnasts performing in the group event). The key features of these data, as well as previous analysis of junior routines for the 2017-2020 Olympic cycle, have led us to the conclusion that, in order to get a high score for apparatus difficulty/mastery, more difficulty elements should be added, which requires an increase in all kinds of speed involved by the technique of a specific event.

Long fusion from sacrum to thoracic spine for adult spinal deformity with sagittal imbalance: upper versus lower thoracic spine as site of upper instrumented vertebra

2014 ◽  
Vol 36 (5) ◽  
pp. E9 ◽  
Author(s):  
Takahito Fujimori ◽  
Shinichi Inoue ◽  
Hai Le ◽  
William W. Schairer ◽  
Sigurd H. Berven ◽  
...  
Keyword(s):  
Thoracic Spine ◽  
Spinal Deformity ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Adult Spinal Deformity ◽  
Sagittal Imbalance ◽  
Fusion Surgery ◽  
Significant Difference ◽  
Upper Instrumented Vertebra

Object Despite increasing numbers of patients with adult spinal deformity, it is unclear how to select the optimal upper instrumented vertebra (UIV) in long fusion surgery for these patients. The purpose of this study was to compare the use of vertebrae in the upper thoracic (UT) versus lower thoracic (LT) spine as the upper instrumented vertebra in long fusion surgery for adult spinal deformity. Methods Patients who underwent fusion from the sacrum to the thoracic spine for adult spinal deformity with sagittal imbalance at a single medical center were studied. The patients with a sagittal vertical axis (SVA) ≥ 40 mm who had radiographs and completed the 12-item Short-Form Health Survey (SF-12) preoperatively and at final follow-up (≥ 2 years postoperatively) were included. Results Eighty patients (mean age of 61.1 ± 10.9 years; 69 women and 11 men) met the inclusion criteria. There were 31 patients in the UT group and 49 patients in the LT group. The mean follow-up period was 3.6 ± 1.6 years. The physical component summary (PCS) score of the SF-12 significantly improved from the preoperative assessment to final follow-up in each group (UT, 34 to 41; LT, 29 to 37; p = 0.001). This improvement reached the minimum clinically important difference in both groups. There was no significant difference in PCS score improvement between the 2 groups (p = 0.8). The UT group had significantly greater preoperative lumbar lordosis (28° vs 18°, p = 0.03) and greater thoracic kyphosis (36° vs 18°, p = 0.001). After surgery, there was no significant difference in lumbar lordosis or thoracic kyphosis. The UT group had significantly greater postoperative cervicothoracic kyphosis (20° vs 11°, p = 0.009). The UT group tended to maintain a smaller positive SVA (51 vs 73 mm, p = 0.08) and smaller T-1 spinopelvic inclination (−2.6° vs 0.6°, p = 0.06). The LT group tended to have more proximal junctional kyphosis (PJK), although the difference did not reach statistical significance. Radiographic PJK was 32% in the UT group and 41% in the LT group (p = 0.4). Surgical PJK was 6.4% in the UT group and 10% in the LT group (p = 0.6). Conclusions Both the UT and LT groups demonstrated significant improvement in clinical and radiographic outcomes. A significant difference was not observed in improvement of clinical outcomes between the 2 groups.

scholarly journals Cambios en la lordosis lumbar luego de una artrodesis vertebral posterior de la columna torácica y su relación con la incidencia pelviana. [Changes in lumbar lordosis after further spinal fusion of thoracic spine and its relationship to pelvic incidence.]

10.15417/421 ◽  
2016 ◽  
Vol 81 (2) ◽  
pp. 122
Author(s):  
Miguel Puigdevall ◽  
Santiago Bosio ◽  
Carolina Halliburton ◽  
Jorge Hokama ◽  
Ruben Maenza
Keyword(s):  
Spinal Fusion ◽  
Thoracic Spine ◽  
Lumbar Lordosis ◽  
Pelvic Incidence

<p><strong>Objetivo</strong>: El objetivo de este trabajo fue evaluar las variables del plano sagital en pacientes con escoliosis idiopática del adolescente que fueron operados mediante una artrodesis vertebral posterior instrumentada con tornillos pediculares y establecer la existencia de relaciones entre las mismas.</p><p><strong>Material y Método</strong>: Fueron evaluados retrospectivamente 20 pacientes. Se compararon entre el espinograma preoperatorio, postoperatorio inmediato y el realizado a los 2 años de la cirugía, los cambios ocurridos en la lordosis cervical, la cifosis torácica, la lordosis lumbar, la incidencia pélvica, el balance sagital global y la cifosis de la unión proximal. Además, los cambios postoperatorios ocurridos en la lordosis lumbar fueron correlacionados con  los cambios postoperatorios ocurridos en la cifosis torácica y en la incidencia pélvica.</p><p><strong>Resultados:</strong> Se observó una disminución significativa en la cifosis torácica (de 24,2° a 14,8° (p&lt;0,0001)) y en la lordosis lumbar (de -60,3° a -39,8° (p&lt;0,00001)) en el espinograma postoperatorio inmediato. Ambos parámetros mostraron un aumento en el espinograma realizado a los 2 años postoperatorios (de 14,8° a 18,7° la cifosis torácica (p=0,021) y de -39,8° a -52,4° la lordosis lumbar (p=0,0036)). También se encontró un aumento significativo entre el preoperatorio y el postoperatorio a 2 años en la cifosis de la unión proximal (de 5,1° a 12,4° (p&lt;0,0001)) y en la lordosis cervical (de -4,2° a -14,8° (p=0,025)). La única correlación postoperatoria significativa encontrado fue entre la lordosis lumbar y la incidencia pélvica (r=0,61) en el espinograma realizado a los 2 años de la cirugía.</p><p><strong>Conclusión:</strong> La AVP instrumentada con tornillos pediculares en pacientes con curvas Lenke 1 provoca una reducción postoperatoria de la cifosis torácica y de la lordosis lumbar, y un aumento postoperatorio de la lordosis cervical y de la cifosis de la unión proximal. En las radiografías realizadas a los 2 años postoperatorios, se observó un aumento de la lordosis lumbar no instrumentada respecto del valor postoperatorio inmediato, y se observó también que dicha lordosis lumbar se relaciona significativamente con la incidencia pélvica del paciente.</p>

The Ultrastructure of Metastatic Human Mammary Carcinoma After Prolonged Estrogen Therapy

1967 ◽  
Vol 25 ◽  
pp. 180-181
Author(s):  
John H.L. Watson ◽  
John L. Swedo ◽  
R.W. Talley
Keyword(s):  
Mammary Carcinoma ◽  
Osmium Tetroxide ◽  
Estrogen Therapy ◽  
Ultrastructural Level ◽  
Uranyl Acetate ◽  
Human Mammary Carcinoma ◽  
Surgical Biopsy ◽  
Lead Hydroxide ◽  
Preliminary Study ◽  
Hormonal Therapies

A preliminary study of human mammary carcinoma on the ultrastructural level is reported for a metastatic, subcutaneous nodule, obtained as a surgical biopsy. The patient's tumor had responded favorably to a series of hormonal therapies, including androgens, estrogens, progestins, and corticoids for recurring nodules over eight years. The pertinent nodule was removed from the region of the gluteal maximus, two weeks following stilbestrol therapy. It was about 1.5 cms in diameter, and was located within the dermis. Pieces from it were fixed immediately in cold fixatives: phosphate buffered osmium tetroxide, glutaraldehyde, and paraformaldehyde. Embedment in each case was in Vestopal W. Contrasting was done with combinations of uranyl acetate and lead hydroxide.

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