keyword
MENU ▼
Read by QxMD icon Read
search

Screw

keyword
https://www.readbyqxmd.com/read/29222690/risk-factor-of-contralateral-radiculopathy-following-microendoscopy-assisted-minimally-invasive-transforaminal-lumbar-interbody-fusion
#1
Yang Yang, Zhong-Yu Liu, Liang-Ming Zhang, Jian-Wen Dong, Pei-Gen Xie, Rui-Qiang Chen, Bu Yang, Chang Liu, Bin Liu, Li-Min Rong
PURPOSE: Microendoscopy-assisted minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) is an advantageous method for treating lumbar degenerative disease; however, some patients show contralateral radiculopathy postoperatively. This study aims to investigate its risk factor. METHODS: A total of 130 cases who underwent microendoscopy-assisted MIS-TLIF at L4-5 level were divided into symptomatic and asymptomatic groups according to the presence of postoperative contralateral radiculopathy...
December 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29222664/anatomical-reconstruction-to-treat-acromion-fractures-following-reverse-shoulder-arthroplasty
#2
Florian Hess, Ralph Zettl, Daniel Smolen, Christoph Knoth
PURPOSE: Scapular fractures after reverse shoulder arthroplasty (RSA) are often associated with substantial shoulder impairment. Patient outcomes following either conservative or operative treatment have not been favourable, and consensus is lacking on the best treatment approach. We describe a technique for anatomic reconstruction of fractured lateral and basal acromion in patients at higher risk for diminished function or those for which conservative treatment has already failed. METHODS: Of the 95 patients who underwent RSA at our institution between December 2013 and December 2016, three had post-operative acromion fractures (type II)...
December 8, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29221759/clinically-significant-pedicle-screw-malposition-is-an-underestimated-cause-of-radiculopathy
#3
Emily Jane Woo, Michael N DiCuccio
No abstract text is available yet for this article.
December 5, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29221656/z-effect-after-intramedullary-nailing-systems-for-trochanteric-femur-fractures
#4
S J M Smeets, G Kuijt, P V van Eerten
PURPOSE: The aim of this study was to investigate the incidence of Z-effect after dual lag screw intramedullary nailing systems and risk factors contributing to this effect. We hypothesized that long nails provide more neck strength due to a longer lever than short nails and are therefore less likely to develop a misbalance of a higher head compressive strength than neck compressive strength. METHODS: In this retrospective cohort study 103 patients treated operatively with a dual lag screw intramedullary nailing device for (sub)trochanteric hip fracture were included...
September 27, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29221479/in-screw-polymethylmethacrylate-augmented-sacroiliac-screw-for-the-treatment-of-fragility-fractures-of-the-pelvis-a-prospective-observational-study-with-1-year-follow-up
#5
Andreas Höch, Philipp Pieroh, Ralf Henkelmann, Christoph Josten, Jörg Böhme
BACKGROUND: The incidence of pelvic ring fractures in the elderly significantly increased. Because of persistent pain and immobilization associated with this injury, surgical treatment is recommended. To minimise comorbidities and surgical risk, percutaneous techniques are becoming more relevant. In-screw cement augmentation of sacroiliac screw fixation is a promising procedure; however, clinical follow-up data remain scarce. This study investigated the safety and possible complications of the procedure along with a 1-year follow-up...
December 8, 2017: BMC Surgery
https://www.readbyqxmd.com/read/29219780/anatomical-and-technical-factors-associated-with-superior-facet-joint-violation-in-lumbar-fusion
#6
Alisson R Teles, Michael Paci, Gabriel Gutman, Fahad H Abduljabbar, Jean A Ouellet, Michael H Weber, Jeff D Golan
OBJECTIVE The aim of this study was to evaluate the anatomical and surgical risk factors for screw-related facet joint violation at the superior level in lumbar fusion. METHODS The authors conducted a retrospective review of a consecutive series of posterior lumbar instrumented fusions performed by a single surgeon. Inclusion criteria were primary lumbar fusion of 1 or 2 levels for degenerative disorders. The following variables were analyzed as possible risk factors: surgical technique (percutaneous vs open screw placement), depth of surgical field, degree of anterior slippage of the superior level, pedicle and facet angle, and facet degeneration of the superior level...
December 8, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29218810/a-prospective-multi-center-study-assessing-early-loading-with-short-implants-in-posterior-regions-a-3-year-post-loading-follow-up-study
#7
Jie Han, Zhihui Tang, Xiao Zhang, Huanxin Meng
BACKGROUND: Few prospective studies about early loading of short implant have been available and very little evidence exists on the outcomes longer than 3 years. PURPOSE: To assess clinical and radiographic outcomes of 6 mm-short implants placed in the posterior maxilla and mandible applying an early loading protocol. MATERIALS AND METHODS: Ninety-five short implants (6 mm-short, Ø 4 mm) were placed in 45 subjects at 3 study sites, 2 or 3 implants per subject, using a one-stage surgical procedure and loaded with a screw-retained splinted fixed prosthesis 6 weeks later...
December 8, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29218387/anatomic-parameters-of-the-sacral-lamina-for-osteosynthesis-in-transverse-sacral-fractures
#8
Yoshihiro Katsuura, Eileen Lorenz, Warren Gardner
PURPOSE: To analyze the morphometric parameters of the dorsal sacral lamina and pedicles to determine if there is adequate bony architecture to support plate osteosynthesis. METHODS: Two reviewers performed measurements on 98 randomly selected high-resolution CT scans of the pelvis to quantify the bony anatomy of the sacral lamina. Measurements included the depths of the lamina at each sacral level, the trajectory and depth of the sacral pedicles from the sacral lamina, and the width of the sacral canal...
December 8, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29217915/innovative-economical-surgical-suture-board
#9
Shalabh Gupta, Apoorv Goel, Ayush Agarwal, Atul Kumar Gupta, Tripta S Bhagat
The aim of this study is to develop an economical suture board for practising suturing skills and techniques. Suture boards were made by using local electric boards, small leather patch, four suction buttons, six screws and a hook. These suture boards are multipurpose boards which are economical and available all the time in department for practicing. This board can also be placed in endotrainer for laparoscopic suturing skills. This economical suture board is cheap, easily available and helps in practicing various suturing and knot tying techniques...
December 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29217349/arthrodesis-of-the-proximal-interphalangeal-joint-of-the-4th-and-5th-finger-using-an-interlocking-screw-device-to-treat-severe-recurrence-of-dupuytren-s-disease
#10
C D Novoa-Parra, D Montaner-Alonso, J I Pérez-Correa, J Morales-Rodríguez, J L Rodrigo-Pérez, M Morales-Suarez-Varela
OBJECTIVE: To assess the radiological and functional outcome of arthrodesis of the 4th and 5th finger using the APEX™ (Extremity Medical, Parsippany,NJ)intermedullary interlocking screw system in patients with severe recurrence of Dupuytren's disease. MATERIAL AND METHOD: The DASH questionnaire and the VAS scale were used to assess the clinical outcomes. The angle of arthrodesis, fusion time and implant fixation were evaluated on x-rays. The patients were monitored for complications during surgery and the follow-up period...
December 4, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/29216793/parametric-study-of-patient-specific-femoral-locking-plates-based-on-a-combined-musculoskeletal-multibody-dynamics-and-finite-element-modeling
#11
Xunjian Fan, Zhenxian Chen, Zhongmin Jin, Qida Zhang, Xuan Zhang, Yinghu Peng
A combined musculoskeletal multibody dynamics and finite element modeling was performed to investigate the effects of design parameters on the fracture-healing efficiency and the mechanical property of a patient-specific anatomically adjusted femoral locking plate. Specifically, the screw type, the thickness and material of the locking plate, the gap between two femoral fragments (fracture gap) and the distance between bone and plate (interface gap) were evaluated during a human walking. We found that the patient-specific locking plate possessed greater mechanical strength and more efficient fracture healing than the corresponding traditional plate...
December 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29216695/-factor-associated-in-the-failure-of-the-ostheosyntesis-of-transtrocantheric-fractures
#12
L D Aguilar-Alcalá, J Atri-Levy, A Torres-Gómez, L Ochoa-Olvera
Pertrochanteric fractures account approximately a half of the proximal femoral fractures. Incidence of these fractures is highest in women, age > 65 years and presents a mortality rate of 14 to 50%. Treatment goals include stable fixation, immediate mobilization and restore activities. Complications after treatment present in 17% and include: nonunion, cut out and varus displacement. OBJECTIVE: Correlation between complications after surgical treatment and presence of instability, inadequate reduction, Tip Apex Index (TAI) > 25 mm, Tip Apex Index to calcar (TAIcal) > 20 mm and parker index...
July 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29215502/functional-limitations-due-to-stiffness-after-long-level-spinal-instrumented-fusion-surgery-to-correct-lumbar-degenerative-flat-back
#13
Jeong-Hoon Choi, Jee-Soo Jang, Kyong-Suk Yoo, Jong-Mog Shin, Il-Tae Jang Md
STUDY DESIGN: A retrospective analysis of functional limitations due to stiffness after long level spinal instrumented fusion surgery to correct lumbar degenerative flat back was performed OBJECTIVE.: To analysis the functional limitations in patients treated surgically for ALDFB with long level instrumented fusion to the sacrum or pelvis. SUMMARY OF BACKGROUND DATA: Long level instrumented fusion for adult lumbar degenerative flat back (ALDFB) decreases back pain and spinal deformity...
December 5, 2017: Spine
https://www.readbyqxmd.com/read/29215500/feasibility-and-accuracy-of-thoracolumbar-minimally-invasive-pedicle-screw-placement-with-augmented-reality-navigation-technology
#14
Adrian Elmi Terander, Rami Nachabe, Halldor Skulason, Kyrre Pedersen, Michael Söderman, John Racadio, Drazenko Babic, Paul Gerdhem, Erik Edström
STUDY DESIGN: Cadaveric laboratory study. OBJECTIVE: To assess the feasibility and accuracy of minimally invasive thoracolumbar pedicle screw placement using augmented reality (AR) surgical navigation SUMMARY OF BACKGROUND DATA.: Minimally invasive spine (MIS) surgery has increasingly become the method of choice for a wide variety of spine pathologies. Navigation technology based on AR has been shown to be feasible, accurate and safe in open procedures. AR technology may also be used for MIS surgery...
December 5, 2017: Spine
https://www.readbyqxmd.com/read/29214371/biomechanical-investigation-of-lumbar-hybrid-stabilization-in-two-level-posterior-instrumentation
#15
Aldemar Andres Hegewald, Sebastian Hartmann, Alexander Keiler, Kai Michael Scheufler, Claudius Thomé, Werner Schmoelz
PURPOSE: Hybrid stabilization with a dynamic implant has been suggested to avoid adjacent segment disease by creating a smoother transition zone from the instrumented segments to the untreated levels above. This study aims to characterize the transition zones of two-level posterior instrumentation strategies for elucidating biomechanical differences between rigid fixation and the hybrid stabilization approach with a pedicle screw-based dynamic implant. METHODS: Eight human lumbar spines (L1-5) were loaded in a spine tester with pure moments of 7...
December 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29214090/bone-resection-for-isolated-ulnar-head-fracture
#16
Hiromasa Akino, Shunpei Hama, Masataka Yasuda, Kenta Minato, Masahiro Miyashita
Distal ulnar fractures often occur with distal radius fractures (DRFs), and ulnar styloid fractures commonly occur in the setting of DRF. However, isolated ulnar head fractures are rare. We report a case of isolated ulnar head fracture in which we performed bone resection because the ulnar head bone fragment fractured when internal screw fixation was attempted. His outcome at 18 months postoperatively was considered excellent. However, we do not advocate bone resection other than failure of fixation and the difficult case to perform internal fixation...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29212625/use-of-tricortical-iliac-crest-strut-autograft-in-comminuted-posterior-wall%C3%A2-acetabular-fractures-a-case-series
#17
Sandeep Gupta, Naveen Mittal, Jagandeep Singh Virk
PURPOSE: The results for fixation of comminuted posterior wall acetabular fractures are not very promising with reported complications in terms of osteoarthritis, nonunion and malunion which subsequently require conversion to total hip arthroplasty. The conversion to total hip arthroplasty is possible in patients over 50 years of age but not in younger patients. So this requires new methods for salvage of the native hip in young patients. METHODS: There were six patients in our series with highly comminuted posterior wall acetabular fractures where the fragments were excised and the gap filled with tricortical anterior iliac-crest strut autograft, fixed with screws and plate...
November 6, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29212042/facial-nerve-injury-and-other-complications-following-retromandibular-subparotid-approach-for-the-management-of-condylar-fractures
#18
Stéphane Bruneau, Delphine S Courvoisier, Paolo Scolozzi
PURPOSE: To estimate the prevalence and identify risk factors for facial nerve paralysis (FNP) and other postoperative complications after the use of the retromandibular subparotid approach (RMSA) for the treatment of condylar fractures. MATERIALS AND METHODS: Radiologic and clinical data from all patients who underwent an RMSA from 2007 through 2015 at the University Hospital of Geneva (Geneva, Switzerland) were retrospectively reviewed. The primary and secondary outcome variables were, respectively, FNP and other complications (unesthetic scars, infection, nonunion, malocclusion, salivary fistula, Frey syndrome, and loosening or breaking of plates and screws)...
December 3, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29210943/survey-of-the-american-neurotology-society-on-cochlear-implantation-part-2-surgical-and-device-related-practice-patterns
#19
Matthew L Carlson, Brendan P O'Connell, Christine M Lohse, Colin L Driscoll, Alex D Sweeney
OBJECTIVE: To examine surgical and device-related cochlear implant practice patterns across centers in the United States. METHODS: Cross-sectional survey of the American Neurotology Society (ANS). RESULTS: A total of 81 surveys were returned from ANS members who report regular involvement in cochlear implant care. Overall there was a broad distribution in age and clinical experience, with most respondents reporting Accreditation Council for Graduate Medical Education (ACGME) accreditation in neurotology and employment at an academic center...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29209809/reduction-and-temporary-stabilization-of-tile-c-pelvic-ring-injuries-using-a-posteriorly-based-external-fixation-system
#20
Murphy P Martin, David Rojas, Cyril Mauffrey
Tile C pelvic ring injuries are challenging to manage even in the most experienced hands. The majority of such injuries can be managed using percutaneous reduction techniques, and the posterior ring can be stabilized using percutaneous transiliac-transsacral screw fixation. However, a subgroup of patients present with inadequate bony corridors, significant sacral zone 2 comminution or significant lateral/vertical displacement of the hemipelvis through a complete sacral fracture. Percutaneous strategies in such circumstances can be dangerous...
December 5, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
keyword
keyword
21911
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"