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https://www.readbyqxmd.com/read/28641201/pelvic-and-hip-kinematics-during-single-leg-drop-landing-are-altered-in-sports-participants-with-long-standing-groin-pain-a-cross-sectional-study
#1
L Janse van Rensburg, M Dare, Q Louw, L Crous, J Cockroft, L Williams, B Olivier
OBJECTIVES: The aim of this study was to determine the differences in three-dimensional pelvic and hip kinematics during a single-leg drop-landing task in active sports participants with long-standing groin pain compared to healthy matched controls. DESIGN: This was a descriptive study incorporating a cross-sectional design. SETTING: The study was conducted at the Unit for Human Movement Analysis, Stellenbosch University, South Africa. PARTICIPANTS: The study sample was comprised of 20 male club level soccer, rugby, running and cycling participants between the ages of 18 and 55 years...
May 12, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28632553/lumbar-retrolisthesis-in-aging-spine-what-are-the-associated-factors
#2
Feng Zhu, Hongda Bao, Zhen Liu, Zezhang Zhu, Shouyu He, Yong Qiu
STUDY DESIGN: A retrospective radiographic study. OBJECTIVE: The aim of this study is to demonstrate that lumbar retrolisthesis serves as an important compensatory mechanism and to identify the possible factor related to lumbar retrolisthesis. SUMMARY OF BACKGROUND DATA: Lumbar instability is one of the common degenerative changes, which presents as 2 radiologic features: anterolisthesis and retrolisthesis. Compared with the extensive studies on anterolisthesis, limit data are available on the characteristics and clinical relevance of lumbar retrolisthesis...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28622902/a-critical-analysis-of-sagittal-plane-deformity-correction-with-minimally-invasive-adult-spinal-deformity-surgery-a-2-year-follow-up-study
#3
Gregory M Mundis, Jay D Turner, Vedat Deverin, Juan S Uribe, Pierce Nunley, Praveen Mummaneni, Neel Anand, Paul Park, David O Okonkwo, Michael Y Wang, Shay Bess, Adam S Kanter, Richard Fessler, Stacie Nguyen, Behrooz A Akbarnia
INTRODUCTION: Sagittal plane realignment is important to achieve desirable clinical outcomes after adult spinal deformity (ASD) surgery. This study evaluates the impact of minimally invasive (MIS) techniques on sagittal plane alignment and clinical outcomes in ASD patients. METHODS: A retrospective, multi-center review of ASD patients (age ≥18 years, and with one of the following: coronal Cobb ≥20°, sagittal vertical axis [SVA] >5 cm, and/or pelvic tilt >25°), MIS surgery, and four or more levels instrumented...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28622901/tridimensional-analysis-of-rotatory-subluxation-and-sagittal-spinopelvic-alignment-in-the-setting-of-adult-spinal-deformity
#4
Emmanuelle Ferrero, Renaud Lafage, Bassel G Diebo, Vincent Challier, Brice Illharreborde, Frank Schwab, Wafa Skalli, Pierre Guigui, Virginie Lafage
STUDY DESIGN: Retrospective single-center. OBJECTIVE: To investigate rotatory subluxation (RS) in adult spinal deformity (ASD) with three-dimensional (3D) stereoradiographic images and analyze relationships between RS, transverse plane parameters, spinopelvic parameters, and clinical outcomes. BACKGROUND: Recent research has demonstrated that sagittal plane malalignment and listhesis correlate with ASD patient-reported outcomes. However, there is still a lack of knowledge regarding the clinical impact of 3D evaluation and rotatory subluxation...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28622899/a-novel-method-for-estimating-three-dimensional-apical-vertebral-rotation-using-two-dimensional-coronal-cobb-angle-and-thoracic-kyphosis
#5
T Barrett Sullivan, Tracey Bastrom, Fredrick Reighard, Megan Jeffords, Peter O Newton
STUDY DESIGN: Retrospective cohort analysis. OBJECTIVES: To use a large cohort of three-dimensional (3D) spinal reconstructions to create a simple mathematical formula capable of estimating 3D apical vertebral rotation (AVR) based on the correlation with routinely obtained two-dimensional (2D) measurements of scoliosis. SUMMARY OF BACKGROUND DATA: Quantification of vertebral rotation in AIS using 2-dimensional (2D) imaging is inherently challenging as the axial plane cannot be directly visualized...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28622188/differences-in-fundamental-sagittal-pelvic-parameters-based-on-age-sex-and-race
#6
Robert K Merrill, Jun S Kim, Dante M Leven, Joung Heon Kim, Joshua J Meaike, Rachel S Bronheim, Kelly I Suchman, Doug Nowacki, Sunder S Gidumal, Samuel K Cho
STUDY DESIGN: This is a retrospective cohort study. OBJECTIVE: To determine whether age, sex, and race have independent effects on sagittal pelvic parameters. SUMMARY OF BACKGROUND DATA: Pelvic parameters and sagittal balance correlate with health-related quality of life and are important for patient assessment and surgical planning. Age, sex, and race are 3 unalterable patient factors that may influence pelvic morphology. METHODS: We conducted a retrospective review of consecutive adult patients who presented to our radiology practice between 2010 and 2015 and had a standing, lateral lumbosacral radiograph...
June 15, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28614172/the-relationship-between-the-number-of-intersections-of-staple-lines-and-anastomotic-leakage-after-the-use-of-a-double-stapling-technique-in-laparoscopic-colorectal-surgery
#7
SeungHun Lee, ByungKwon Ahn, SeungHyun Lee
PURPOSE: Laparoscopic intracorporeal colorectal anastomosis with double stapling technique is difficult because of unsuitable cutting angle in narrow pelvic cavity. For reasons of tilted and long linear staple line of rectal stump, circular anastomotic plane can make multiple intersections. The present study was designed to assess whether multiple intersections after double stapling technique is the risk factor of anastomotic complication in laparoscopic colorectal surgery. MATERIALS AND METHODS: In total, 128 consecutive left colon and rectal cancer patients who underwent laparoscopic rectal resection with double stapling technique were enrolled in this study...
June 13, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28601994/radiologic-features-of-dropped-head-syndrome-in-the-overall-sagittal-alignment-of-the-spine
#8
Kazuki Hashimoto, Hiroshi Miyamoto, Terumasa Ikeda, Masao Akagi
PURPOSE: Dropped head syndrome (DHS) is a rare clinical entity which is defined as a chin-on-chest deformity in the standing or sitting position, resulting from sagittal imbalance of the cervical region. The purpose of the present study was to clarify the radiologic features of DHS in the overall sagittal alignment of the spine. We also investigated the changes in sagittal alignment after correction surgery for DHS. METHODS: Twenty DHS patients [1 male and 19 female, with an average age of 78...
June 10, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28598295/pelvic-retroversion-a-compensatory-mechanism-for-lumbar-stenosis
#9
Sina Pourtaheri, Akshay Sharma, Jason Savage, Iain Kalfas, Thomas E Mroz, Edward Benzel, Michael P Steinmetz
OBJECTIVE The flexed posture of the proximal (L1-3) or distal (L4-S1) lumbar spine increases the diameter of the spinal canal and neuroforamina and can relieve symptoms of neurogenic claudication. Distal lumbar flexion can result in pelvic retroversion; therefore, in cases of flexible sagittal imbalance, pelvic retroversion may be compensatory for lumbar stenosis and not solely compensatory for the sagittal imbalance as previously thought. The authors investigate underlying causes for pelvic retroversion in patients with flexible sagittal imbalance...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28586366/sagittal-spino-pelvic-alignment-in-adults-the-wakayama-spine-study
#10
Yoshiki Asai, Shunji Tsutsui, Hiroyuki Oka, Noriko Yoshimura, Hiroshi Hashizume, Hiroshi Yamada, Toru Akune, Shigeyuki Muraki, Ko Matsudaira, Hiroshi Kawaguchi, Kozo Nakamura, Sakae Tanaka, Munehito Yoshida
OBJECTIVES: To establish the normal values of spino-pelvic alignment and to clarify the effect of age-related changes using large, community-based cohorts. METHODS: In this study, data from 1461 participants (466 men, 995 women) were analyzed. On lateral standing radiographs, the following parameters were measured: thoracic kyphosis (TK), lumbar lordosis (LL), pelvic tilt (PT), pelvic incidence (PI), and C7 sagittal vertical axis (SVA). All values are expressed as the mean±standard deviation...
2017: PloS One
https://www.readbyqxmd.com/read/28582642/movement-of-the-sacroiliac-joint-during-the-active-straight-leg-raise-test-in-patients-with-long-lasting-severe-sacroiliac-joint-pain
#11
Thomas J Kibsgård, Stephan M Röhrl, Olav Røise, Bengt Sturesson, Britt Stuge
BACKGROUND: The Active Straight Leg Raise is a functional test used in the assessment of pelvic girdle pain, and has shown to have good validity, reliability and responsiveness. The Active Straight Leg Raise is considered to examine the patients' ability to transfer load through the pelvis. It has been hypothesized that patients with pelvic girdle pain lack the ability to stabilize the pelvic girdle, probably due to instability or increased movement of the sacroiliac joint. This study examines the movement of the sacroiliac joints during the Active Straight Leg Raise in patients with pelvic girdle pain...
May 29, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28579287/effect-of-1-or-2-level-posterior-lumbar-interbody-fusion-on-global-sagittal-balance
#12
Jae Hwan Cho, Youn-Suk Joo, Cheongsu Lim, Chang Ju Hwang, Dong-Ho Lee, Choon Sung Lee
BACKGROUND CONTEXT: Sagittal imbalance is associated with poor clinical outcomes in patients with degenerative lumbar disease. However, there is no consensus on the impact of posterior lumbar interbody fusion (PLIF) on local and global sagittal balance. PURPOSE: To reveal the effect of 1- or 2-level PLIF on global sagittal balance. STUDY DESIGN/SETTING: A retrospective case-control study. PATIENTS SAMPLE: This study included 88 patients who underwent a 1- or 2-level PLIF for spinal stenosis with spondylolisthesis...
June 1, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28575457/characterizing-adult-cervical-deformity-and-disability-based-on-existing-cervical-and-adult-deformity-classification-schemes-at-presentation-and-following-correction
#13
Peter G Passias, Cyrus M Jalai, Justin S Smith, Virginie Lafage, Bassel G Diebo, Themistocles Protopsaltis, Gregory Poorman, Ubaraman Ramchandran, Hay Bess, Christopher I Shaffrey, Christopher P Ames, Frank Schwab
BACKGROUND: Adult cervical deformity (ACD) classifications have not been implemented in a prospective ACD population and in conjunction with adult spinal deformity (ASD) classifications. OBJECTIVE: To characterize cervical deformity type and malalignment with 2 classifications (Ames-ACD and Schwab-ASD). METHODS: Retrospective review of a prospective multicenter ACD database. Inclusion: patients ≥18 yr with pre- and postoperative radiographs...
May 30, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28559074/anterior-column-realignment-has-similar-results-to-pedicle-subtraction-osteotomy-in-treating-adults-with-sagittal-plane-deformity
#14
Gregory M Mundis, Jay D Turner, Nima Kabirian, Jeff Pawelek, Robert K Eastlack, Juan Uribe, Eric Klineberg, Shay Bess, Chris Ames, Vedat Deviren, Stacie Nguyen, Virginie Lafage, Behrooz A Akbarnia
OBJECTIVE: Anterior column realignment (ACR) is a minimally invasive surgical technique used for the correction of adult sagittal plane deformity. ACR is performed via a minimally invasive lateral transpsoas approach with anterior longitudinal ligament release and hyperlordotic cage placement. The objective of this study was to compare radiographic outcomes and complications in patients treated by ACR or PSO. METHODS: ACR patients were matched with patients from a retrospective PSO dataset, by pelvic incidence, lumbar lordosis, and thoracic kyphosis...
May 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28555312/long-fusions-to-s1-with-or-without-pelvic-fixation-can-induce-relevant-acute-variations-in-pelvic-incidence-a-retrospective-cohort-study-of-adult-spine-deformity-surgery
#15
Riccardo Cecchinato, Andrea Redaelli, Carlotta Martini, Carlotta Morselli, Jorge Hugo Villafañe, Claudio Lamartina, Pedro Berjano
PURPOSE: The purpose of this study is to verify if any changes occur in pelvic incidence (PI) in adult patients undergoing long fusion to sacrum for spine deformity and to describe the effect of fixation to pelvis on these variations. METHODS: We conducted a cross sectional study. Sixty-six adults patients, 87% females (mean ± SD age: 65.1 ± 7.6 years), undergoing fusion from the thoracic spine to the sacrum for adult spine deformity were included. Patients were divided in two different groups: Group A: sacral fixation alone and Group B: sacral fixation plus pelvis fixation...
May 29, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28550358/visualization-of-a-cam-type-femoroacetabular-impingement-while-squatting-using-image-matching-techniques-a-case-report
#16
Kensei Yoshimoto, Satoshi Hamai, Hidehiko Higaki, Hirotaka Gondoh, Yasuharu Nakashima
The in vivo assessment of the three-dimensional (3D) kinematics of the hip in patients with femoroacetabular impingement (FAI) under weight-bearing conditions has not been previously reported. We evaluated the pre- and postoperative hip kinematics of a 34-year-old man, with a cam-type FAI while squatting, using image-matching techniques with measurement of the rim-neck distance. Post-osteochondroplasty, the α-angle improved from 51.0° to 35.5° and the head-neck offset ratio from 0.04 to 0.23. Coxalgia during squatting disappeared, and the Harris Hip Score improved from 79 to 92 at 1 year post-surgery...
May 27, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28549902/does-corrective-spine-surgery-improve-the-standing-balance-in-patients-with-adult-spinal-deformity
#17
Mitsuru Yagi, Hideaki Ohne, Shinjiro Kaneko, Masafumi Machida, Yoshiyuki Yato, Takashi Asazuma
BACKGROUND CONTEXT: The effect of corrective spine surgery on standing stability in adult spinal deformity (ASD) has not been fully documented. PURPOSE: To compare pre- and postoperative standing balance and posture in patients with ASD. STUDY DESIGN/SETTING: Prospective case series. PATIENT SAMPLE: Standing balance before and after corrective spine surgery was compared in 35 consecutive female patients with ASD (65...
May 23, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28545560/influences-of-lumbar-disc-herniation-on-the-kinematics-in-multi-segmental-spine-pelvis-and-lower-extremities-during-five-activities-of-daily-living
#18
Shengzheng Kuai, Wenyu Zhou, Zhenhua Liao, Run Ji, Daiqi Guo, Rui Zhang, Weiqiang Liu
BACKGROUND: Low back pain (LBP) is a common problem that can contribute to motor dysfunction. Previous studies reporting the changes in kinematic characteristics caused by LBP present conflicting results. This study aimed to apply the multisegmental spinal model to investigate the kinematic changes in patients with lumbar disc herniation (LDH) during five activities of daily living (ADLs). METHODS: Twenty-six healthy subjects and 7 LDH patients participated in this study and performed level walking, stair climbing, trunk flexion, and ipsilateral and contralateral pickups...
May 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28542103/predictive-accuracy-of-surgimaptm-surgical-planning-for-sagittal-imbalance-a-cohort-study
#19
Francesco Langella, Jorge Hugo Villafañe, Marco Damilano, Riccardo Cecchinato, Matteo Pejrona, Maryem Ismael, Pedro Berjano
STUDY DESIGN: A cohort study. OBJECTIVE: To evaluate the predictive value of surgical planning using Surgimap™ regarding postoperative sagittal alignment. SUMMARY OF BACKGROUND DATA: Surgical planning in sagittal imbalance is recognized as a key step of treatment to ensure results. METHODS: The study involved 40 non-consecutive patients who underwent surgery for sagittal misalignment. Postoperative alignment measured by sagittal vertical axis (SVA) and pelvic tilt (PT) was considered the gold standard...
May 25, 2017: Spine
https://www.readbyqxmd.com/read/28542100/global-spinal-alignment-in-patients-with-cervical-spondylotic-myelopathy
#20
Go Yoshida, Abdulmajeed Alzakri, Vincent Pointillart, Louis Boissiere, Ibrahim Obeid, Yukihiro Matsuyama, Jean Marc Vital, Olivier Gille
STUDY DESIGN: Prospective radiographic analysis of cervical spondylotic myelopathy (CSM) OBJECTIVE.: To clarify the pathophysiology of CSM, and use the characteristic of global spinal alignment for determining the surgical strategy. SUMMARY OF BACKGROUND DATA: Radiographic evaluation of CSM, in general, comprises cervical magnetic resonance imaging (MRI) and regional cervical radiography, which cannot distinguish between cervical hyperlodorsis with spinopelvic compensation and cervical lordorsis with normal global alignment...
May 24, 2017: Spine
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