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https://www.readbyqxmd.com/read/28425068/analysis-of-cervical-sagittal-alignment-change-following-correction-of-thoracic-and-thoracolumbar-scheuermann-s-kyphosis
#1
Luigi Aurelio Nasto, Saggah Tarek Shalabi, Ana Belen Perez-Romera, Samiul Muquit, Amir Reza Ghasemi, Hossein Mehdian
PURPOSE: To analyse pre-operative and post-operative changes of cervical sagittal alignment (CSA) in Scheuermann's kyphosis (SK) patients. METHODS: 64 SK and 33 control patients were retrospectively reviewed. Whole spine X-rays obtained at pre-op, 3 months post-op and at latest follow-up were reviewed and ten separate CSA radiological parameters were measured. Patients were divided in three groups: thoracic SK (TK group, apex T6-T9, n = 40), thoracolumbar SK (TLK group, apex T10-T12, n = 24), and controls...
April 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28406566/how-did-the-pelvis-and-vertebral-column-become-a-functional-unit-during-the-transition-from-occasional-to-permanent-bipedalism
#2
Christine Tardieu, Kazuhiro Hasegawa, Martin Haeusler
The functional linkage between pelvis and spine remained long hidden to science. Here, we recount the history of research that led in 1992 to the discovery of the "angle of sacral incidence" by the team of G. Duval-Beaupère. This angle, formed between a ray from the hip joint center to the superior sacral surface and the perpendicular to the sacral surface, was later called pelvic incidence. Specific to each individual, pelvic incidence is tightly correlated with the degree of lumbar lordosis. It is each individual's "signature" for an efficient sagittal balance since it represents the sum of two positional parameters, sacral slope and pelvic tilt...
May 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28402485/evolution-of-sagittal-imbalance-following-corrective-surgery-for-sagittal-plane-deformity
#3
Michael M McDowell, Zachary J Tempel, Gurpreet S Gandhoke, Nicholas K Khattar, D Kojo Hamilton, Adam S Kanter, David O Okonkwo
BACKGROUND: Sagittal balance in adult spinal deformity is a major predictor of quality of life. A temporary loss of paraspinal muscle force and somatic pain following spine surgery may limit a patient's ability to maintain posture. OBJECTIVE: To assess the evolution of sagittal balance and clinical outcomes during recovery from adult spinal deformity surgery. METHODS: Retrospective review of a prospective observational database identified a consecutive series of patients with sagittal vertical axis (SVA) > 40 mm undergoing adult deformity surgery...
April 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28399325/influence-of-surgical-approach-on-pelvic-lift-in-hip-arthroplasty-during-cup-insertion
#4
Steffen Brodt, Christoph Windisch, Linda Krakow, Dimitri Nowack, Georg Matziolis
The position of the acetabular cup is a major factor in the long-term outcome of total hip arthroplasty (THA). Malpositioning of the acetabular cup frequently has been reported with the use of a minimally invasive implantation technique. It remains unclear whether the limited visibility or the increased retractor traction and thus tilting of the pelvis during cup implantation is the cause. This study investigated the influence of iatrogenically related pelvic lift using an anterolateral minimally invasive THA technique...
April 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/28395170/the-effects-of-walking-speed-on-upper-body-kinematics-during-gait-in-healthy-subjects
#5
Jacqueline Romkes, Katrin Bracht-Schweizer
Patients undergoing a clinical gait analysis often walk slower than healthy people. However, data on how speed affects upper body movements, especially of the arms and shoulders, are scarce. Therefore, in this descriptive study, we examined how changes in walking speed affect upper-body kinematics and aspects of intersegmental coordination between upper and lower body during overground walking in a group of healthy adult subjects. Three-dimensional gait data were collected on 20 healthy subjects (aged between 22 and 31 years) walking at six speeds ranging from extremely slow to very fast...
March 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28390935/evaluation-of-clinical-gait-analysis-parameters-in-patients-affected-by-multiple-sclerosis-analysis-of-kinematics
#6
Giacomo Severini, Mario Manca, Giovanni Ferraresi, Luisa Maria Caniatti, Michela Cosma, Francesco Baldasso, Sofia Straudi, Monica Morelli, Nino Basaglia
BACKGROUND: Clinical Gait Analysis is commonly used to evaluate specific gait characteristics of patients affected by Multiple Sclerosis. The aim of this report is to present a retrospective cross-sectional analysis of the changes in Clinical Gait Analysis parameters in patients affected by Multiple Sclerosis. METHODS: In this study a sample of 51 patients with different levels of disability (Expanded Disability Status Scale 2-6.5) was analyzed. We extracted a set of 52 parameters from the Clinical Gait Analysis of each patient and used statistical analysis and linear regression to assess differences among several groups of subjects stratified according to the Expanded Disability Status Scale and 6-Minutes Walking Test...
April 3, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28390166/application-of-navigated-ultrasound-for-assessment-of-the-anterior-pelvic-plane-in-patients-with-degenerative-hip-diseases
#7
Andrzej Kochman, Adrian Goral, Tobias Martin, Wojciech Marek, Josef Kozak, Monika Morawska-Kochman, Marek Synder
OBJECTIVES: Correct positioning of the acetabular cup is the key for successful total-hip replacement. In common clinical practice, the target alignment of the cup is defined with respect to the anterior pelvic plane. In patients with substantial anterior pelvic plane inclination, this condition may lead to inappropriate distribution of the load on the cup, as most of the forces exerted within the hip joint act along the vertical axis. With the known pelvic inclination, it is possible to readjust the position of the cup with respect to the individual posture of the patient...
April 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28383441/radiological-analysis-for-thoracolumbar-disc-herniation-in-spinopelvic-sagittal-alignment-a-retrospective-study
#8
Tao Wang, Lei Ma, Da-Long Yang, Hui Wang, Di Zhang, Ying-Ze Zhang, Wen-Yuan Ding
A retrospective study aims to explore differences in spinopelvic sagittal alignment between thoracolumbar disc herniation (TLD) and lower lumbar disc herniation (LLD).A total of 185 patients included 26 with TLD and 129 with LLD and 30 asymptomatic volunteers in normal group (NG). Each individual took full spine X-ray to evaluate pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), thoracic kyphosis (TK), TK+LL+PI, TK/LL, and sacrum-femoral-pubic symphysis (SFP). The Roussouly classification was used to categorize all subjects according to their sagittal alignment...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28373141/spine-hip-relations-add-understandings-to-the-pathophysiology-of-femoro-acetabular-impingement-a-systematic-review
#9
REVIEW
C Rivière, A Hardijzer, J-Y Lazennec, P Beaulé, S Muirhead-Allwood, J Cobb
Relationship between hip pathoanatomy and symptomatic FAI has been reported to be weak. This is explained by the reciprocal interaction between proximal femur and acetabular anatomies, but potentially also by the individual spine-hip relations (SHR). The key-answer for a complete understanding of the pathophysiology of FAI might lie in the comprehension of the SHRs, which have not yet been fully addressed. Therefore we conducted a systematic review to answer the subsequent questions: Is there any evidence of a relationship between FAI and (1) sagittal pelvic kinematics, (2) pelvic incidence, and (3) types of SHRs? A systematic review of the existing literature utilizing PubMed and Google search engines was performed in December 2016...
April 1, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28368866/spinopelvic-parameters-in-asymptomatic-subjects-without-spine-disease-and-deformity-a-systematic-review-with-meta-analysis
#10
Andriy Noshchenko, Lilian Hoffecker, Christopher M J Cain, Vikas V Patel, Evalina L Burger
STUDY DESIGN: A systematic review with meta-analysis. OBJECTIVE: To combine published data, focusing on the development of optimal spinopelvic parameters in adult asymptomatic subjects without spine deformity while taking into consideration the impact of potential confounders. SUMMARY OF BACKGROUND DATA: A well-grounded approach to define the optimal spinopelvic parameters is necessary for planning surgical correction of spine deformity. MATERIALS: Selection criteria: (1) randomized and nonrandomized prospective, cross-sectional, and retrospective studies; (2) participants: asymptomatic subjects without spine deformity aged above 18 years; (3) studied parameters: lumbar lordosis (LL), pelvic incidence, sacral slope, and pelvic tilt; (4) potential confounders: method of measurement, sex, age, ethnicity, weight, height, and body mass index...
March 31, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28365858/sagittal-balance-is-correlated-with-parkinson-s-disease-clinical-parameters-an-overview-of-spinopelvic-alignment-on-175-consecutive-cases
#11
Luciano Bissolotti, Pedro Berjano, Paola Zuccher, Andrea Zenorini, Riccardo Buraschi, Jorge Hugo Villafañe, Stefano Negrini
PURPOSE: The aim of this study was to describe the disease-related sagittal balance changes in relation to the sacro-pelvic morphology of Parkinson's Disease patients with different duration of disease. METHODS: One hundred and seventy-five consecutive Parkinson's Disease (PD) patients (102 males, 73 females; age: 55-83 years) participated in the cross-sectional study. The clinical assessment included: Hoehn Yahr (H&Y) score; Tinetti score; plumb line (PL) distance from the spinous process of C7, L3 and S1 and kyphosis apex...
April 1, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28363893/osseous-impingement-occurs-early-in-flexion-in-cam-type-femoroacetabular-impingement-a-4d-ct-model
#12
S Fernquest, C Arnold, A Palmer, J Broomfield, J Denton, A Taylor, S Glyn-Jones
AIMS: The aim of this study was to examine the real time in vivo kinematics of the hip in patients with cam-type femoroacetabular impingement (FAI). PATIENTS AND METHODS: A total of 50 patients (83 hips) underwent 4D dynamic CT scanning of the hip, producing real time osseous models of the pelvis and femur being moved through flexion, adduction, and internal rotation. The location and size of the cam deformity and its relationship to the angle of flexion of the hip and pelvic tilt, and the position of impingement were recorded...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28343332/posterior-elements-disruption-with-hybrid-constructs-in-ais-patients-is-there-an-impact-on-proximal-junctional-kyphosis
#13
S Ghailane, Sebastien Pesenti, E Peltier, E Choufani, B Blondel, J L Jouve
PURPOSE: Proximal junctional kyphosis (PJK) is a frequent proximal adjacent segment disease following spinal fusion in adolescent idiopathic scoliosis (AIS) and its rate has been estimated to 28% in the literature. The etiology is multifactorial, and risk factors associated with PJK are controversial. The aim of this study was to demonstrate that the disruption of muscular and bony tissue above the upper instrumented vertebra (UIV) during surgery does not increase the rate of PJK in patients undergoing posterior fusion for adolescent idiopathic scoliosis...
March 25, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28341194/outcomes-of-open-staged-corrective-surgery-in-the-setting-of-adult-spinal-deformity
#14
Peter G Passias, Gregory W Poorman, Cyrus M Jalai, Breton Line, Bassel Diebo, Paul Park, Robert Hart, Douglas Burton, Frank Schwab, Virginie Lafage, Shay Bess, Thomas Errico
BACKGROUND CONTEXT: Adult spinal deformity (ASD) represents a constellation of complex mal-alignments affecting the spinal column. Corrective surgical procedures aimed at improving ASD can be equally challenging, and commonly require multiple index procedures and potential revisions prior to definitive management. There is a paucity of data comparing the outcomes of same-day (simultaneous) and two-day (staged) procedures for long spinal-fusions for ASD. Utilizing a large patient cohort with surgeon and patient-reported outcomes will be particularly useful in determining the utility and effect of staging long spine fusions for ASD...
March 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28338449/development-of-a-preoperative-predictive-model-for-major-complications-following-adult-spinal-deformity-surgery
#15
Justin K Scheer, Justin S Smith, Frank Schwab, Virginie Lafage, Christopher I Shaffrey, Shay Bess, Alan H Daniels, Robert A Hart, Themistocles S Protopsaltis, Gregory M Mundis, Daniel M Sciubba, Tamir Ailon, Douglas C Burton, Eric Klineberg, Christopher P Ames
OBJECTIVE The operative management of patients with adult spinal deformity (ASD) has a high complication rate and it remains unknown whether baseline patient characteristics and surgical variables can predict early complications (intraoperative and perioperative [within 6 weeks]). The development of an accurate preoperative predictive model can aid in patient counseling, shared decision making, and improved surgical planning. The purpose of this study was to develop a model based on baseline demographic, radiographic, and surgical factors that can predict if patients will sustain an intraoperative or perioperative major complication...
March 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28331906/associations-between-sarcopenia-and-degenerative-lumbar-scoliosis-in-older-women
#16
Yawara Eguchi, Munetaka Suzuki, Hajime Yamanaka, Hiroshi Tamai, Tatsuya Kobayashi, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Kazuhide Inage, Kazuki Fujimoto, Hirohito Kanamoto, Koki Abe, Yasuchika Aoki, Tomoaki Toyone, Tomoyuki Ozawa, Kazuhisa Takahashi, Seiji Ohtori
BACKGROUND: Age-related sarcopenia can cause various forms of physical disabilities. We investigated how sarcopenia affects degenerative lumbar scoliosis (DLS) and lumbar spinal canal stenosis (LSCS). METHODS: Subjects comprised 40 elderly women (mean age 74 years) with spinal disease whose chief complaints were low back pain and lower limb pain. They included 15 cases of DLS (mean 74.8 years) and 25 cases of LSCS (mean age 72.9 years). We performed whole-body dual-energy X-ray absorptiometry (DXA) to analyze body composition, including appendicular and trunk skeletal muscle mass index (SMI; lean mass (kg)/height (m)(2)) and bone mineral density (BMD)...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28330796/chronic-low-back-pain-after-lumbosacral-fracture-due-to-sagittal-and-frontal-vertebral-imbalance
#17
L Boyoud-Garnier, M Boudissa, S Ruatti, G Kerschbaumer, P Grobost, J Tonetti
PROBLEM AND HYPOTHESIS: Over time, some patients with unilateral or bilateral lumbosacral injuries experience chronic low back pain. We studied the sagittal and frontal balance in a population with these injuries to determine whether mismatch in the pelvic and lumbar angles are associated with chronic low back pain. PATIENTS AND METHODS: Patients with posterior pelvic ring fractures (Tile C1, C2, C3 and A3.3) that had healed were included. Foreign patients and those with an associated spinal or acetabular fracture or nonunion were excluded...
March 19, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28324202/the-influence-of-surgical-approach-on-postoperative-pelvic-tilt-after-total-hip-arthroplasty
#18
Daisuke Inoue, Tamon Kabata, Yoshitomo Kajino, Tadashi Taga, Kazuhiro Hasegawa, Takashi Yamamoto, Tomoharu Takagi, Takaaki Ohmori, Hiroyuki Tsuchiya
BACKGROUND: Past reports have shown the tendency of posterior pelvic tilt to increase over time after total hip arthroplasty (THA). We have hypothesized that the volume and extent of released joint capsule may influence the change in postoperative pelvic tilt. This study was conducted to ascertain whether surgical approach during THA (posterior or anterior) has an effect on postoperative changes in pelvic tilt. METHODS: We conducted a retrospective review of 81 hips in 60 patients...
March 21, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28316957/the-evolution-of-computer-assisted-total-hip-arthroplasty-and-relevant-applications
#19
EDITORIAL
Jun-Dong Chang, In-Sung Kim, Atul M Bhardwaj, Ramachandra N Badami
In total hip arthroplasty (THA), the accurate positioning of implants is the key to achieve a good clinical outcome. Computer-assisted orthopaedic surgery (CAOS) has been developed for more accurate positioning of implants during the THA. There are passive, semi-active, and active systems in CAOS for THA. Navigation is a passive system that only provides information and guidance to the surgeon. There are 3 types of navigation: imageless navigation, computed tomography (CT)-based navigation, and fluoroscopy-based navigation...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28306640/cervical-alignment-variations-in-different-postures-and-predictors-of-normal-cervical-kyphosis-a-new-understanding
#20
Hwee Weng Dennis Hey, Eugene Tze-Chun Lau, Chengyuan Gordon Wong, Kimberly-Anne Tan, Gabriel Ka-Po Liu, Hee-Kit Wong
STUDY DESIGN: Prospective comparative study OBJECTIVE.: To predict physiological alignment of the cervical spine and study its morphology in different postures. SUMMARY OF BACKGROUND DATA: There is increasing evidence that normal cervical spinal alignment may vary from lordosis to neutral to kyphosis, or form S-shaped or reverse S-shaped curves. METHODS: Standing, erect sitting and natural sitting whole spine radiographs were obtained from 26 consecutive patients without cervical spine pathology...
March 16, 2017: Spine
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