Efficacy of posterior only approach for complex iatrogenic flat back

2021 ◽  
Author(s):  
K Martikos ◽  
F Vommaro ◽  
L Boriani ◽  
A Scarale ◽  
P Zarantonello ◽  
...  
Keyword(s):  
Flat Back

Vertical and horizontal barbell kinematics indicate differences in mechanical advantage between using an arched or flat back posture in the barbell bench press exercise

2021 ◽  
pp. 174795412098295
Author(s):  
Brendan L Pinto ◽  
Clark R Dickerson
Keyword(s):  
Repeated Measures ◽  
Bench Press ◽  
Glenohumeral Joint ◽  
Statistical Significance ◽  
Vertical Displacement ◽  
Moment Arm ◽  
Mechanical Advantage ◽  
Strength Performance ◽  
Flat Back ◽  
And Training

Employing an arched back posture during the bench press exercise is increasingly popular. Vertical displacement of the barbell is commonly believed to be the key difference influencing strength performance between an arched and flat back bench press technique. However, comparisons between these back postures using a free weight barbell are lacking. Directly comparing performance between each posture is confounded by many variables such as proficiency and fatigue. This investigation aimed to investigate whether changing back posture alone can influence barbell kinematics, to indirectly assess potential performance differences. Twenty males performed one repetition of the bench press exercise using either an arched or flat back posture, at 25%, 50% and 75% of their one repetition maximum, in a repeated measures study design. Statistical significance was considered at p < 0.05. Changing back posture alone, reduced vertical displacement (approximately 11% average difference across all load conditions) and barbell to glenohumeral joint moment arm (approximately 20% difference) in the arched posture compared to the flat posture. These changes occurred without any specific cueing of the barbell motion and may increase the potential for lifting higher loads and decrease cumulative joint exposure. Additional cueing and training may be required to maximize the mechanical advantage available with each back posture. The arched posture appears to have an increased potential for further improvements in vertical displacement and moment arm through specific cueing. Future comparisons should consider if each back posture’s potential mechanical advantage has been maximized when assessing differences between techniques.

Quantitative Analysis of Back Muscle Degeneration in the Patients With the Degenerative Lumbar Flat Back Using a Digital Image Analysis

Spine ◽  
2008 ◽  
Vol 33 (3) ◽  
pp. 318-325 ◽  
Author(s):  
Jae Chul Lee ◽  
Jang-Gyu Cha ◽  
Yongdai Kim ◽  
Yon-Il Kim ◽  
Byung-Joon Shin
Keyword(s):  
Image Analysis ◽  
Quantitative Analysis ◽  
Digital Image ◽  
Digital Image Analysis ◽  
Muscle Degeneration ◽  
Back Muscle ◽  
Flat Back

A Seventeenth-century Portrait Miniature of Charles II as Prince of Wales?

2003 ◽  
Vol 83 ◽  
pp. 492-495 ◽  
Author(s):  
Mark A Rickard
Keyword(s):  
Seventeenth Century ◽  
Flat Plate ◽  
Good Condition ◽  
Left Shoulder ◽  
Country House ◽  
Charles Ii ◽  
Blue Background ◽  
The Right ◽  
Flat Back

This small portrait miniature emerged in the sale, by an anonymous vendor, of part of the contents of a country house near Stamford, in Lincolnshire, on 16 February 2002. The image is painted in watercolour on a pale carnation ground with a support of either card or vellum and is in good condition with only one marginal abrasion. To the right of the miniature, against the pale blue background and parallel to the boy's left shoulder, is the monogram of ‘G’ above ‘I’. The frame is an oval seventeenth-century silver locket with a flat back measuring 33mm × 28mm. The convex glass is held in place by a gold band, and attached to the back is a gold loop secured by a thin flat plate, which is possibly a later addition.

Flat back and postpolio syndromes

1997 ◽  
Vol 78 (8) ◽  
pp. 894 ◽  
Author(s):  
Myron M. LaBan ◽  
Ronald S. Taylor
Keyword(s):  
Flat Back

scholarly journals Revision thoracolumbar surgery for flat back deformity: staged ALIF and posterior column osteotomies to avoid three-column osteotomy

2020 ◽  
Vol 2 (1) ◽  
pp. V5
Author(s):  
Alexandria C. Marino ◽  
Thomas J. Buell ◽  
Rebecca M. Burke ◽  
Tony R. Wang ◽  
Chun-Po Yen ◽  
...  
Keyword(s):  
Sagittal Plane ◽  
Leg Pain ◽  
Sagittal Imbalance ◽  
Illustrative Case ◽  
Complication Rates ◽  
Posterior Surgery ◽  
Significant Alignment ◽  
Alignment Correction ◽  
Operative Planning ◽  
Flat Back

Three-column osteotomies (3COs) can achieve significant alignment correction when revising fixed sagittal plane deformities; however, the technique is associated with high complication rates. The authors demonstrate staged anterior-posterior surgery with L5–S1 ALIF (below a prior L3–5 fusion) and multilevel Smith-Petersen osteotomies to circumvent the morbidity associated with 3CO. The patient was a 67-year-old male with three prior lumbar surgeries who presented with back and leg pain. Imaging demonstrated lumbar flat back deformity and sagittal imbalance. The narrated video details key radiological measurements, operative planning and rationale, surgical steps, and outcomes. The patient provided written, informed consent for publication of this illustrative case.The video can be found here: https://youtu.be/wv4W9D9fUPc.

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