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https://www.readbyqxmd.com/read/28818564/validity-of-a-smartphone-protractor-to-measure-sagittal-parameters-in-adult-spinal-deformity
#1
William Aaron Kunkle, Michael Madden, Shannon Potts, Jeremy Fogelson, Stuart Hershman
BACKGROUND CONTEXT: Smartphones have become an integral tool in the daily life of healthcare professionals (Franko 2011). Their ease of use and wide availability often make smartphones the first tool surgeons use to perform measurements. This technique has been validated for certain orthopaedic pathologies (Shaw 2012, Quek 2014, Milanese 2014, Milani 2014), but never to assess sagittal parameters in adult spinal deformity. This study was designed to assess the validity, reproducibility, precision and efficiency of using a smartphone protractor application to measure sagittal parameters commonly measured in adult spinal deformity assessment and surgical planning...
August 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28806980/factors-influencing-outcomes-after-medial-hamstring-lengthening-with-semitendinosus-transfer-in-patients-with-cerebral-palsy
#2
Ki Hyuk Sung, Jaebong Lee, Chin Youb Chung, Kyoung Min Lee, Byung Chae Cho, Seung Jun Moon, Jaeyoung Kim, Moon Seok Park
BACKGROUND: Although several studies have investigated the outcomes after distal hamstring lengthening (DHL), no study has undertaken an approach that included all or most of the important factors that could influence the results. This study was performed to evaluate the outcomes after DHL and analyze the factors that influence the improvement and serial change in knee motion after surgery in patients with cerebral palsy (CP), using a linear mixed model (LMM). METHODS: The study included 314 ambulatory CP patients (594 limbs) with spsastic diplegia who were followed up after undergoing DHL as part of a single-event multilevel surgery and who underwent preoperative and postoperative 3-dimensional (3D) gait analyses...
August 14, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28799837/effectiveness-of-deformity-correction-surgery-for-primary-degenerative-sagittal-imbalance-a-meta-analysis
#3
Chang-Hyun Lee, Chun Kee Chung, Jee-Soo Jang, Sung-Min Kim, Dong-Kyu Chin, Jung-Kil Lee, Seung Hwan Yoon, Jae Taek Hong, Yoon Ha, Chi Heon Kim, Seung-Jae Hyun
OBJECTIVE As life expectancy continues to increase, primary degenerative sagittal imbalance (PDSI) is diagnosed in an increasing number of elderly people. Although corrective surgery for this sagittal deformity is becoming more popular, the effectiveness of the procedure remains unclear. The authors aimed to collate the available evidence on the effectiveness and complications of deformity-correction surgery in patients with PDSI. METHODS The authors carried out a meta-analysis of clinical studies regarding deformity correction in patients with PDSI...
August 11, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28794584/changes-in-spinopelvic-indices-after-hip-arthroplasty-and-its-influence-on-acetabular-component-orientation
#4
Siddharth Mahesh Shah, Selin Munir, William Lindsay Walter
OBJECTIVE: To evaluate spinopelvic changes after hip arthroplasty in standing and ready-to-rise positions. METHODS: We compared pelvic tilt, sacral slope, cobb's angle, and hip flexion on pre and postoperative spinopelvic radiographs. RESULTS: Standing: All postoperative indices were similar to preoperative ones except sacral slope (mean difference:1.6°, p = 0.046). Ready-to-rise: All postoperative indices were similar to preoperative ones except pelvic tilt which was significantly greater postoperatively (mean difference: 5...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28790467/current-concepts-in-acetabular-positioning-in-total-hip-arthroplasty
#5
Deepu Bhaskar, Asim Rajpura, Tim Board
Being one of the most successful surgeries in the history of medicine, the indications for total hip arthroplasty have widened and are increasingly being offered to younger and fitter patients. This has also led to high expectations for longevity and outcomes. Acetabular cup position has a significant impact on the results of hip arthroplasty as it affects dislocation, abductor muscle strength, gait, limb lengths, impingement, noise generation, range of motion (ROM), wear, loosening, and cup failure. The variables in cup position are depth, height, and angular position (anteversion and inclination)...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28777285/3d-modeling-of-lower-extremities-with-biplanar-radiographs-reliability-of-measures-on-subsequent-examinations
#6
David E Westberry, Ashley M Carpenter
BACKGROUND: Biplanar radiography with 3-dimensional (3D) modeling (EOS) provides a comprehensive assessment of lower limb alignment in an upright weight-bearing position with less radiation than conventional radiography. A study was performed to assess the consistency and reliability of 2 lower extremity 3D biplanar radiograph models created at least 1 year apart in a pediatric population. METHODS: All patients who had 2 lower extremity radiographic evaluations with EOS performed at visits a minimum of 1 year apart were reviewed...
August 2, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28768776/the-validity-and-reproducibility-of-cross-table-radiographs-compared-with-ct-scans-for-the-measurement-of-anteversion-of-the-acetabular-component-after-total-hip-arthroplasty
#7
A Pankaj, A Mittal, A Chawla
AIMS: The aim of this study was to assess the reproducibility and validity of cross table radiographs for measuring the anteversion of the acetabular component after total hip arthroplasty (THA) and to compare it with measurements using CT scans. PATIENTS AND METHODS: A total of 29 patients who underwent THA between June 2010 and January 2016 were included. There were 17 men and 12 women. Their mean age was 43 years (26 to 65). Seven patients underwent a bilateral procedure...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28767630/predictive-findings-of-the-presence-of-stooping-in-patients-with-lumbar-degenerative-kyphosis-by-upright-whole-spine-lateral-radiography
#8
Seung Min Son, Jong Ki Shin, Tae Sik Goh, Kuen Tak Suh, Jung Sub Lee
STUDY DESIGN: Retrospective study. OBJECTIVE: To identify the relationships between radiological findings and the presence of stooping in lumbar degenerative kyphosis (LDK). SUMMARY OF BACKGROUND DATA: Many studies have addressed fixed sagittal imbalances and surgical treatments. However, information regarding the relationship between radiological findings and stooping in LDK is sparse. METHODS: The study included 73 patients with LDK and 44 with normal lumbar lordosis...
August 1, 2017: Spine
https://www.readbyqxmd.com/read/28764697/femur-first-surgical-technique-a-smart-non-computer-based-procedure-to-achieve-the-combined-anteversion-in-primary-total-hip-arthroplasty
#9
Mattia Loppini, Umile Giuseppe Longo, Emanuele Caldarella, Antonello Della Rocca, Vincenzo Denaro, Guido Grappiolo
BACKGROUND: The relevance of prosthetic component orientation to prevent dislocation and impingement following total hip arthroplasty (THA) has been widely accepted. We investigated the use of a non-computer-based surgery to address the reciprocal orientation of the acetabular and femoral components. METHODS: In the femur first technique, the cup is positioned relative to the stem. When the definitive antetorsion of femoral component is fixed, the cup is positioned in a compliant anteversion to the stem...
August 1, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28760034/complete-anatomic-reduction-and-monosegmental-fusion-for-lumbar-spondylolisthesis-of-grade-ii-and-higher-use-of-the-minimally-invasive-rocking-technique
#10
Deshpande V Rajakumar, Akshay Hari, Murali Krishna, Ankit Sharma, Manjunatha Reddy
OBJECTIVE Different surgical approaches have been described for treatment of spondylolisthesis, including in situ fusions, reductions of various degrees, and inclusion of healthy adjacent segments into the fusion construct. To the authors' knowledge, there are only sparse reports describing consistent complete reduction and monosegmental transforaminal lumbar interbody fusion for spondylolisthesis using a minimally invasive technique. The authors assess the efficacy of this technique in the reduction of local deformity and correction of overall sagittal profile in single-level spondylolisthesis...
August 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28760032/minimally-invasive-transforaminal-lumbar-interbody-fusion-with-expandable-versus-static-interbody-devices-radiographic-assessment-of-sagittal-segmental-and-pelvic-parameters
#11
Ammar H Hawasli, Jawad M Khalifeh, Ajay Chatrath, Chester K Yarbrough, Wilson Z Ray
OBJECTIVE Minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) has been adopted as an alternative technique to hasten recovery and minimize postoperative morbidity. Advances in instrumentation technologies and operative techniques have evolved to maximize patient outcomes as well as radiographic results. The development of expandable interbody devices allows a surgeon to perform MIS-TLIF with minimal tissue disruption. However, sagittal segmental and pelvic radiographic outcomes after MIS-TLIF with expandable interbody devices are not well characterized...
August 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28759983/validation-of-ct-image-based-software-for-three-dimensional-measurement-of-acetabular-coverage-profile
#12
Marcus P Wenzl, Markus Heller, Viktor Janz, Carsten Perka, Georgi I Wassilew
BACKGROUND: Plain radiography, 2-dimensional (2D) magnetic resonance imaging (MRI), and computed tomography (CT) do not precisely display morphology and acetabular coverage in developmental dysplasia of the hip or pincer-type femoroacetabular impingement. Pelvic position and pelvic tilt affect assessment of the acetabular parameters, leading to misinterpretation. OBJECTIVE: We tested a 3-dimensional (3D) CT evaluation script to calculate the crossover sign (COS), acetabular coverage and morphology...
July 21, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28759487/aortocaval-compression-syndrome-time-to-revisit-certain-dogmas
#13
Allison J Lee, Ruth Landau
More than 70 years ago, the phenomenon of "postural shock" in the supine position was described in healthy women in late pregnancy. Since then, avoidance of the supine position has become a key component of clinical practice. Indeed, performing pelvic tilt in mothers at term to avoid aortocaval compression is a universally adopted measure, particularly during cesarean delivery. The studies on which this practice is based are largely nonrandomized, utilized a mix of anesthetic techniques, and were conducted decades ago in the setting of avoidance of vasopressors...
July 27, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28746131/assessment-of-the-cross-sectional-areas-of-the-psoas-major-and-multifidus-muscles-in-patients-with-adult-spinal-deformity-a-case-control-study
#14
Tomohiro Banno, Yu Yamato, Tomohiko Hasegawa, Sho Kobayashi, Daisuke Togawa, Shin Oe, Yuki Mihara, Kenta Kurosu, Naoto Yamamoto, Yukihiro Matsuyama
STUDY DESIGN: This is a case-control study. OBJECTIVE: The present study aimed to compare the cross-sectional areas of the psoas major and multifidus muscles between elderly patients with adult spinal deformity (ASD) and age-matched and body weight-matched controls, and to evaluate the associations between the cross-sectional areas of these muscles and the severity of spinal deformity. SUMMARY OF BACKGROUND DATA: The study included 49 female kyphosis patients with mild scoliosis (Cobb angle <20 degrees; mean age, 70...
August 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28746124/a-japanese-stretching-intervention-can-modify-lumbar-lordosis-curvature
#15
Norio Kadono, Kazushi Tsuchiya, Azusa Uematsu, Hiroshi Kamoshita, Kazunori Kiryu, Tibor Hortobágyi, Shuji Suzuki
STUDY DESIGN: Eighteen healthy male adults were assigned to either an intervention or control group. OBJECTIVES: Isogai dynamic therapy (IDT) is one of Japanese stretching interventions and has been practiced for over 70 years. However, its scientific quantitative evidence remains unestablished. The objective of this study was to determine whether IDT could modify lumbar curvature in healthy young adults compared with stretching exercises used currently in clinical practice...
August 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28746123/a-change-in-lumbar-sagittal-alignment-after-single-level-anterior-lumbar-interbody-fusion-for-lumbar-degenerative-spondylolisthesis-with-normal-sagittal-balance
#16
Chi Heon Kim, Chun Kee Chung, Sung Bae Park, Seung Heon Yang, Jung-Hee Kim
STUDY DESIGN: Retrospective analysis. OBJECTIVE: The object is to assess the correlation between whole lumbar lordosis (LL) and the segmental angle (SA) after single-level anterior lumbar interbody fusion for degenerative lumbar spondylolisthesis. SUMMARY OF BACKGROUND DATA: The restoration of the SA at lower lumbar spine is meaningful, considering it contributes approximately 60% of LL, and revision surgery due to flat back or adjacent segment pathology was necessary decades after the initial surgery...
August 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28744065/effect-of-modified-leg-raising-exercise-on-the-pain-and-pelvic-angle-of-a-patient-with-back-pain-and-excessive-lordosis
#17
Won-Gyu Yoo
[Purpose] This study developed a modified active leg-raising exercise to decrease lumbar lordosis and assessed its effectiveness in a patient with low back pain and excessive lumbar lordosis. [Subject and Methods] The subject was a 56-year-old woman with excessive lordosis, who complained of continuous severe LBP pain at the L5 level for 1 year. The subject performed the modified active leg-raising exercise while flexing the neck. She performed the modified active leg-raising exercises for 2 weeks, performing three sets of 30 repetitions per day...
July 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28741218/asymmetric-pedicle-subtractionosteotomy-apso-guided-by-a-3d-printed-model-to-correct-a-combined-fixed-sagittal-and-coronal-imbalance
#18
Pierre-Pascal Girod, S Hartmann, P Kavakebi, J Obernauer, M Verius, C Thomé
Surgical correction of fixed thoracolumbar deformity is usually achieved by estimating the preoperatively planned correction angles during surgery and is therefore prone to inaccuracy. This is particularly problematic in biplanar deformities. To overcome these difficulties, 3D model for planning, preparation, and simulation of an asymmetric pedicle subtraction osteotomy (aPSO) was printed and used to realign coronal and sagittal balance in case of rigid degenerative kyphoscoliosis. A 59-year-old woman presented with severe back pain and spinal claudication and was diagnosed with a rigid kyphoscoliosis with multilevel spinal stenosis...
July 24, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28730917/novice-runners-show-greater-changes-in-kinematics-with-fatigue-compared-with-competitive-runners
#19
Ellen Maas, Jorien De Bie, Riet Vanfleteren, Wouter Hoogkamer, Benedicte Vanwanseele
Fatigue, developed over the course of a run, may cause changes in running kinematics. Training status may influence the effect of fatigue on running kinematics, since well trained, competitive runners are used to running until exhaustion, whereas novice runners are not. This study aimed to determine changes in running kinematics during an exhaustive run in both novice (NOVICE) and competitive (COMP) long-distance runners. About 15 NOVICE and 15 COMP runners performed a treadmill run, until voluntary exhaustion at 3,200 m time trial pace...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28712802/efficacy-of-a-pelvic-lateral-positioner-with-a-mechanical-cup-navigator-based-on-the-anatomical-pelvic-plane-in-total-hip-arthroplasty
#20
Kentaro Iwakiri, Akio Kobayashi, Yoichi Ohta, Yukihide Minoda, Kunio Takaoka, Hiroaki Nakamura
BACKGROUND: The acetabular component orientation in total hip arthroplasty (THA) is of critical importance to the good clinical results. However, traditional widely used cup alignment guides for cup placement are reported to be relatively unreliable. The present study aims at comparing a novel cup alignment guide, which can be attached to our anatomical pelvic plane (APP) pelvic lateral positioner for reducing discrepancies in sagittal pelvic tilt and indicate a targeted cup angle based on the APP, with a conventional cup alignment guide...
June 27, 2017: Journal of Arthroplasty
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