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https://www.readbyqxmd.com/read/28937459/percutaneous-kyphoplasty-for-the-treatment-of-osteoporotic-vertebral-fractures-with-intravertebral-fluid-or-air-a-comparative-study
#1
Junjie Niu, Dawei Song, Haifei Zhou, Qian Meng, Bin Meng, Huilin Yang
STUDY DESIGN: A retrospective comparative study. OBJECTIVE: To compare the characteristics of osteoporotic vertebral fractures (OVFs) with intravertebral fluid (IVF) and those with intravertebral air (IVA), and the efficacy of percutaneous balloon kyphoplasty (PKP) in treating OVFs with these 2 different intravertebral components. SUMMARY OF BACKGROUND DATA: Previous studies have focused on the efficacy of percutaneous vertebroplasty (PVP) and PKP in treating OVFs with intravertebral cleft...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28936052/outcome-of-descemet-stripping-automated-endothelial-keratoplasty-in-failed-penetrating-keratoplasty
#2
Abdulrahman S Khairallah
PURPOSE: The purpose of this study was to report the outcomes of descemet stripping automated endothelial keratoplasty (DSAEK) surgeries in eyes with failed penetrating keratoplasty (PKP). METHODS: This was a retrospective, noncomparative, descriptive case series. Patients who underwent DSAEK following PKP from January 2007 to December 2012 were reviewed. Data were collected on best-corrected visual acuity (BCVA) before and 1 week, 1 month, 3 months, 6 months, 1 year, and 2 years following DSAEK...
April 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/28932339/penetrating-keratoplasty-for-keratoconus-excimer-versus-femtosecond-laser-trephination
#3
Berthold Seitz, Achim Langenbucher, Tobias Hager, Edgar Janunts, Moatasem El-Husseiny, Nora Szentmáry
BACKGROUND: In case of keratoconus, rigid gas-permeable contact lenses as the correction method of first choice allow for a good visual acuity for quite some time. In a severe stage of the disease with major cone-shaped protrusion of the cornea, even specially designed keratoconus contact lenses are no more tolerated. In case of existing contraindications for intrastromal ring segments, corneal transplantation typically has a very good prognosis. METHODS: In case of advanced keratoconus - especially after corneal hydrops due to rupture of Descemet's membrane - penetrating keratoplasty (PKP) still is the surgical method of first choice...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28926889/-clinical-research-progress-in-endothelial-keratoplasty
#4
Y Y Zhang, L X Xie
Endothelial keratoplasty (EK) has gradually replaced penetrating keratoplasty (PKP) and has become the main method for the treatment of endothelial dysfunction in developed countries in recent years. EK is safe and effective and can achieve good postoperative vision. The surgical techniques and postoperative effects have been improved continuously along with the development of microsurgical technology and surgical instruments. The EK surgeries mainly include Descemet stripping endothelial keratoplasty (DSEK), Descemet stripping automated endothelial keratoplasty (DSAEK), Descemet membrane endothelial keratoplasty (DMEK) and ultra-thin Descemet stripping automated endothelial keratoplasty (UT-DSAEK), which have different characteristics and advantages compared with PKP...
September 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28914632/stepwise-guided-photorefractive-keratectomy-in-treatment-of-irregular-astigmatism-after-penetrating-keratoplasty-and-deep-anterior-lamellar-keratoplasty
#5
Nir Sorkin, Adi Einan-Lifshitz, Sagi Abelson, Tanguy Boutin, Mahmood Showail, Armand Borovik, Zach Ashkenazy, Clara C Chan, David S Rootman
PURPOSE: To report the outcome of stepwise ablation using topography-guided photorefractive keratectomy to treat irregular astigmatism after either penetrating keratoplasty (PKP) or deep anterior lamellar keratoplasty (DALK). METHODS: This is a retrospective, interventional analysis including patients with irregular astigmatism after either PKP or DALK, who underwent topography-guided photorefractive keratectomy. The entire cohort was analyzed, as well as the PKP and DALK groups separately...
September 12, 2017: Cornea
https://www.readbyqxmd.com/read/28858085/evaluation-of-an-interlaced-triple-procedure-penetrating-keratoplasty-extracapsular-cataract-extraction-and-nonopen-sky-intraocular-lens-implantation
#6
Shuo Yang, Bin Wang, Yangyang Zhang, Hualei Zhai, Junyi Wang, Shuang Wang, Lixin Xie
To evaluate an interlaced triple procedure that involved penetrating keratoplasty (PKP), extracapsular cataract extraction (ECCE) using diathermy capsulotomy, and nonopen-sky intraocular lens (IOL) implantation.This retrospective study involved data from 34 patients who were diagnosed with severe corneal opacities and cataracts. These patients were divided into an interlaced procedure group (21 patients) and a traditional procedure group (13 patients). In the interlaced group, the method of continuous curvilinear capsulorhexis (CCC) was completed via diathermy capsulotomy...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28829670/clinical-efficacy-analysis-of-percutaneous-kyphoplasty-combined-with-zoledronic-acid-in-the-treatment-and-prevention-of-osteoporotic-vertebral-compression-fractures
#7
Bin Liu, Fusheng Gan, Yu Ge, Haiyang Yu
OBJECTIVE: The aim of this study is to investigate the clinical efficacy of percutaneous kyphoplasty (PKP) combined with zoledronic acid (aclasta) in the treatment and prevention of osteoporotic vertebral compression fractures (OVCF). METHOD: A total of 104 patients with OVCF were treated with PKP from February 15, 2014 to January 17, 2016. All patients were randomly assigned to control and experimental groups, each group having 52 patients. All patients in the control group were treated with PKP...
August 22, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28827194/midterm-outcomes-of-penetrating-keratoplasty-after-cultivated-oral-mucosal-epithelial-transplantation-in-chemical-burn
#8
Alireza Baradaran-Rafii, Siamak Delfazayebaher, Nasser Aghdami, Ehsan Taghiabadi, Shahram Bamdad, Danial Roshandel
PURPOSE: To evaluate the mid-term outcome of penetrating keratoplasty (PKP) after cultivated oral mucosal epithelial transplantation (COMET) in patients with bilateral total limbal stem cell deficiency (LSCD) due to chemical burn. METHODS: In this prospective interventional nonrandomized case series, optical PKP was performed in patients with severe stromal opacity after successful COMET. Main outcome measures were stability of the ocular surface, visual acuity improvement and corneal graft survival...
August 18, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28808586/quality-of-vision-after-deep-anterior-lamellar-keratoplasty-fluid-dissection-compared-to-penetrating-keratoplasty-for-the-treatment-of-keratoconus
#9
Islam Mahmoud Hamdi, Momen Mahmoud Hamdi
PURPOSE: To compare the visual quality of patients with keratoconus who underwent penetrating keratoplasty (PKP) or deep anterior lamellar keratoplasty (DALK) with fluid dissection. DESIGN: Cross-sectional, observational study. METHODS: Twelve eyes that underwent PKP (PKP group) were compared to 24 eyes that underwent DALK (DALK group) after complete removal of sutures and stability of refraction. Visual, refractive, corneal topographic, corneal aberrometry, and ocular aberrometry parameters were compared for both groups...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28798871/application-of-pmma-bone-cement-composited-with-bone-mineralized-collagen-in-percutaneous-kyphoplasty
#10
Ming Bai, Heping Yin, Jian Zhao, Yang Li, Yongdong Yang, Yimin Wu
We investigated the feasibility of applying polymethylmethacrylate bone cement composited with biomimetic bone-mineralizsed collagen to percutaneous kyphoplasty (PKP). We performed PKP in 95 patients diagnosed with osteoporotic vertebral compression fracture. All patients had fractures of a single vertebral body, and they were divided randomly into control (group A, 47 patients) and experimental (group B, 48 patients) groups. Patients in group A were treated with acrylic cement, and those in group B were treated with acrylic cement composited with the bone graft material...
August 2017: Regenerative Biomaterials
https://www.readbyqxmd.com/read/28782368/analysis-of-risk-factors-causing-short-term-cement-leakages-and-long-term-complications-after-percutaneous-kyphoplasty-for-osteoporotic-vertebral-compression-fractures
#11
Chang Gao, Min Zong, Wen-Tao Wang, Lei Xu, Da Cao, Yue-Fen Zou
Background Percutaneous kyphoplasty (PKP) is a common treatment modality for painful osteoporotic vertebral compression fractures (OVCFs). Pre- and postoperative identification of risk factors for cement leakage and follow-up complications would therefore be helpful but has not been systematically investigated. Purpose To evaluate pre- and postoperative risk factors for the occurrence of short-term cement leakages and long-term complications after PKP for OVCFs. Material and Methods A total of 283 vertebrae with PKP in 239 patients were investigated...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28749898/recurrence-of-granular-corneal-dystrophy-type-1-after-phototherapeutic-keratectomy-lamellar-keratoplasty-and-penetrating-keratoplasty-in-a-single-population
#12
Darrell R Lewis, Marianne O Price, Matthew T Feng, Francis W Price
PURPOSE: To describe the recurrence of granular corneal dystrophy type 1 (GCD1) after penetrating keratoplasty (PKP), anterior lamellar keratoplasty (ALK), deep anterior lamellar keratoplasty (DALK), and phototherapeutic keratectomy (PTK) in a single population. The time required to achieve best-corrected visual acuity (BCVA) after each intervention was also analyzed. METHODS: Retrospective review of all patients with GCD1 from a single center between 1989 and 2016...
October 2017: Cornea
https://www.readbyqxmd.com/read/28734818/preoperative-aqueous-cytokine-levels-are-associated-with-a-rapid-reduction-in-endothelial-cells-after-penetrating-keratoplasty
#13
Yukari Yagi-Yaguchi, Takefumi Yamaguchi, Kazunari Higa, Terumasa Suzuki, Hiroyuki Yazu, Naohiko Aketa, Yoshiyuki Satake, Kazuo Tsubota, Jun Shimazaki
PURPOSE: To evaluate the influence of preoperative inflammatory cytokine levels in the aqueous humor (AqH) on the endothelial cell density (ECD) after penetrating keratoplasty (PKP). DESIGN: Prospective, interventional, consecutive case series. METHODS: This study includes 70 consecutive patients (mean age 73.7 ± 10.6 years) who underwent PKP (37 eyes) or cataract surgery (controls, 33 eyes). A total of 70 AqH samples were collected at the beginning of each surgery...
September 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28724812/use-of-glycerol-preserved-corneas-for-corneal-transplants
#14
Neeti Gupta, Prerna Upadhyay
PURPOSE: This study was carried out to see the results of glycerol-preserved cornea (GPC) in emergency situation when fresh corneal tissue was not available. The aim was to study the outcome of corneal transplantation using GPC. METHODS: This was a retrospective study. The medical records of all the patients were reviewed, who underwent keratoplasty using "GPC" during the period from October 2011 to December 2015. The indication of keratoplasty, duration of preservation of the GPC, and its outcome were analyzed...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28672969/comparative-study-on-the-biomechanics-between-improved-pvp-and-traditional-pkp-in-the-treatment-of-vertebral-peripheral-wall-damage-type-ovcf
#15
Tao Zhou, Hao Lin, Hongliang Wang, Xiaoqiang Chen, Fang He
We compared the biomechanics between improved percutaneous vertebroplasty (improved PVP) and traditional percutaneous kyphoplasty (PKP) in the treatment of vertebral peripheral wall damage-type osteoporotic vertebral compression fracture (OVCF). A total of 15 vertebral peripheral wall damage-type OVCF models of new calves (12-14 weeks) were treated with a decalcifying agent (Shandon TBD-1) with the vertebral compression fracture. The vertebral volume and anterior height before modeling, and the vertebral BMD before and after modeling were measured...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28647158/a-systematic-review-of-unilateral-versus-bilateral-percutaneous-vertebroplasty-percutaneous-kyphoplasty-for-osteoporotic-vertebral-compression-fractures
#16
Shengping Yang, Changxian Chen, Hanlong Wang, Zhiqiang Wu, Lianqun Liu
OBJECTIVE: The aim of this study was to compare the unilateral and bilateral approaches in treating osteoporotic vertebral compression fractures. METHODS: Based on the principles and methods of the Cochrane systematic reviews, the records of the Cochrane Library, PubMed, Web of Science, Chinese Bio-medicine database, China Journal Full-text Database, VIP database, and Wanfang database were reviewed until October 2014. The randomized controlled trials on unilateral and bilateral approaches to percutaneous vertebroplasty (PVP)/percutaneous kyphoplasty (PKP) for osteoporotic vertebral compression fractures were included...
June 21, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28646864/femtosecond-laser-assisted-cataract-surgery-after-penetrating-keratoplasty-a-case-report
#17
Danmin Cao, Shiming Wang, Yong Wang
BACKGROUND: Cataract surgery after penetratingkeratoplasty (PKP) is often challenging due to changes in the integrity of the cornea caused by PKP. For example, corneal endothelial cell (CEC) loss and corneal edema commonly occur after traditional phacoemulsification cataract surgery in patients that previously had successful PKP. Recent studies have reported that femtosecond laser-assisted cataract surgery (FLACS) significantly reduces the need for ultrasound energy minimizing mechanical damage to the cornea and results in a reduction of CEC loss and corneal edema...
June 24, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28640112/cement-leakage-in-osteoporotic-vertebral-compression-fractures-with-cortical-defect-using-high-viscosity-bone-cement-during-unilateral-percutaneous-kyphoplasty-surgery
#18
Tie Liu, Zhe Li, Qingjun Su, Yong Hai
The purpose of this study was to investigate cement leakage (CL) in osteoporotic vertebral compression fractures (OVCFs) with cortical defect using high-viscosity bone cement during unilateral percutaneous kyphoplasty (PKP) surgery.This study included a series of 77 patients (23 males, 54 females) with single level osteoporotic vertebral body fracture (OVCF) who underwent unilateral PKP in our hospital. Preoperative x-ray, computed tomography (CT) scan, and 3-dimensional reconstructions were studied. During the PKP procedure, needle was carefully put to avoid too near to the cortical defect according to CT image...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28616744/demonstration-that-a-klebsiella-pneumoniae-subsp-pneumoniae-isolated-from-an-insect-nezara-viridula-harbors-a-plasmid-borne-type-iv-secretion-system
#19
Enrique Gino Medrano, Alois A Bell
Previously, we reported the isolation of Klebsiella pneumoniae subspecies pneumoniae strain Kp 5-1 from a southern green stink bug (Nezara viridula) that is a significant pest of numerous economically important crops. We subsequently sequenced the strains whole genome. Here, we report the presence of a functional plasmid-borne type IV secretion (TFSS) system that was identified using genomic mining of the annotated genome. Comparison of the Kp 5-1 resident 186 kb plasmid (pKp 5-1) with nine other Klebsiella with plasmids of comparable size from clinical and environmental strains revealed putative TFSS with identities ranging from 70 to 99%...
September 2017: Current Microbiology
https://www.readbyqxmd.com/read/28607331/a-retrospective-study-of-percutaneous-balloon-kyphoplasty-for-the-treatment-of-symptomatic-schmorl-s-nodes-5-year-results
#20
Sun Zhi-Yong, Zhao Huan, Ling Feng, Lv Nan-Ning, Zhu Xiao-Yu, Pi Bin, Lin Jun, Qian Zhong-Lai, Zhang Zhi-Ming, Yang Hui-Lin
BACKGROUND Despite literature supporting the efficiency of percutaneous balloon kyphoplasty (PKP) in treating osteoporotic and malignant vertebral compression fractures, few reports exist that document its use for treatment of symptomatic Schmorl's nodes (SNs) refractory to conservative treatment. Patients with symptomatic SNs could have pain in the vertebrae similar to an acute vertebral compression fracture. MRI is very helpful in diagnosing symptomatic SNs when x-ray and CT scan are unremarkable. In painful cases, the vertebrae bone marrow around the SNs is hyperintense on T2-weighted subsequence...
June 13, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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