Related by context. All words. (Click for frequent words.) 64 percutaneous vertebroplasty 64 prospective multicenter study 64 urodynamic 64 valve implantation 64 oncological outcomes 64 vaginal hysterectomy 63 liver resection 63 arthroplasties 63 posterolateral fusion 63 reimplantation 63 unicompartmental knee replacement 63 fracture fixation 62 cystectomy 62 femoral neck fracture 62 hip arthroplasty 62 partial meniscectomy 62 total knee arthroplasties 62 inguinal hernia repair 62 mitral valve replacement 62 sonographically guided 62 adrenalectomy 61 ischemic mitral regurgitation 61 total knee arthroplasty 61 Coronary Artery Bypass Graft 61 femoral fractures 61 sternal closure 61 preoperative evaluation 61 elective PCI 61 MDCT scans 61 oral anticoagulant therapy 61 colonoscopic 61 meniscectomy 61 total hip arthroplasty 61 autologous chondrocyte implantation 61 sacral nerve stimulation 61 renal biopsy 61 Coronary artery bypass grafting 61 knee arthroplasty 61 arthroplasty 60 posterior cervical 60 postprocedure 60 TURBT 60 shoulder arthroplasty 60 nephron sparing surgery 60 donor nephrectomy 60 excisional 60 ankle arthrodesis 60 endoscopic retrograde cholangiopancreatography ERCGrant Parpan 60 radiographic outcomes 60 lumbar fusion 60 urothelial cancer 60 shockwave lithotripsy 60 hip resurfacing arthroplasty 60 HIPEC 60 myocardial revascularization 60 voiding dysfunction 60 paracentesis 60 TKAs 60 posttreatment 60 MitraClip device 60 cerebral vasospasm 60 external beam radiotherapy 60 Fontan procedure 60 septoplasty 60 nephrectomies 60 calcaneal fractures 60 Coronary artery bypass graft 60 abdominal hysterectomy 60 radiotherapy RT 59 percutaneous drainage 59 acetabular fractures 59 unicompartmental 59 radical retropubic prostatectomy 59 immunosuppression therapy 59 laparoscopic radical prostatectomy 59 ureteroscopy 59 nonoperative treatment 59 pulmonary artery banding 59 radical cystectomy 59 transcatheter closure 59 thoracic endovascular aortic 59 distal anastomosis 59 colon resection 59 eculizumab therapy 59 lung resection 59 intravesical therapy 59 transabdominal 59 oncologic outcomes 59 craniectomy 59 bypass grafting 59 sacrocolpopexy 59 balloon kyphoplasty procedure 59 cartilage lesions 59 percutaneous nephrolithotomy 59 distraction osteogenesis 59 endoluminal 59 tenodesis 59 aortic root replacement 59 hemiarthroplasty 59 thyroidectomy 59 distal radius fractures 59 reoperations 59 postoperative hemorrhage 58 TEVAR 58 RALP 58 pacemaker implantation 58 OPCAB 58 carotid artery stenting CAS 58 PCNL 58 thymectomy 58 venous thromboembolic disease 58 explantation 58 urologic surgeons 58 total hip arthroplasties 58 primary patency 58 cardiac revascularization 58 pre operatively 58 retrospective observational study 58 gauge vitrectomy 58 endoscopic sinus surgery 58 preoperative diagnosis 58 pelvic lymphadenectomy 58 VATS lobectomy 58 antireflux 58 hypofractionated radiation 58 pulmonary resection 58 Altrazeal TM Silver 58 posttransplant 58 post operatively 58 inguinal hernias 58 cartilage regeneration 58 vascular insufficiency 58 laparoscopic bariatric surgery 58 thromboembolic disease 58 coronary stenting 58 stem cell transplantations 58 adenoidectomy 58 nonoperative 58 parathyroidectomy 58 CT angiography CTA 58 lumbar spinal fusion 58 retropubic 58 incisional 58 aortic coarctation 58 electrophysiologic 58 Nonsurgical 58 postoperative morbidity 58 urolithiasis 58 plain radiographs 58 opioid analgesia 58 transrectal ultrasound guided 58 VTE prophylaxis 58 epidural steroid injection 58 lumbar disc replacement 58 lymph node dissection 58 thoracoscopic 58 nondiagnostic 58 antireflux surgery 58 valvuloplasty 58 percutaneous intervention 57 gynecologic surgery 57 pars plana vitrectomy 57 chondral 57 functional mitral regurgitation 57 Ebstein anomaly 57 revision THA 57 concurrent chemoradiation 57 edifoligide E2F Decoy 57 postsurgical 57 endovascular interventions 57 anterior resection 57 thromboprophylaxis 57 fundoplication 57 unicompartmental knee arthroplasty 57 F FDG PET 57 INFUSE ® 57 IDET procedure 57 bowel resections 57 hemodilution 57 transthoracic 57 urethral strictures 57 lymphadenectomy 57 chronic LBP 57 wound dehiscence 57 coronary bypass grafting 57 ACL reconstructions 57 limb salvage 57 oncologic 57 carotid artery stenting 57 cerebral angiography 57 postintervention 57 postoperative complication 57 LAGB 57 Balloon Kyphoplasty 57 gastric imbrication 57 pancreatectomy 57 minimally invasive mitral valve 57 esophagogastric 57 postoperative radiotherapy 57 pelvic lymph node dissection 57 transesophageal echocardiography 57 aromatase inhibitor therapy 57 epidural analgesia 57 prospective nonrandomized 57 colorectal liver metastases 57 renal transplantation 57 functional endoscopic sinus 57 anastomotic leaks 57 vertebroplasty 57 tubal reversal 57 ventral hernias 57 engineered urethras 57 endovascular aneurysm repair 57 posttraumatic arthritis 57 neurocognitive outcomes 57 laproscopic 57 transoral 57 arthrography 57 laparoscopic colorectal 57 Coronary artery bypass 57 Vitrectomy 57 joint arthroplasty 57 transurethral 57 antithrombotic therapy 57 stent grafting 57 bariatric procedure 56 HoLEP 56 Arthroscopic 56 sacral neuromodulation 56 node dissection 56 Preoperatively 56 pump CABG 56 cytoreductive nephrectomy 56 ureteral stents 56 laparoscopic technique 56 DVT prophylaxis 56 Multivariate logistic regression 56 radiographic findings 56 intubations 56 TURP 56 hypertrophic scarring 56 adjunctive therapies 56 rhizotomy 56 clevidipine 56 sympathectomy 56 pathologic fractures 56 colorectal adenoma 56 bone grafting procedures 56 pelvic prolapse 56 haematologic 56 stellate ganglion block 56 Body contouring 56 percutaneous tibial nerve 56 unicompartmental knee 56 vertebral compression fractures 56 radioiodine therapy 56 laparoscopic cholecystectomy 56 pharmacological therapies 56 GI endoscopy 56 Artelon ® 56 HSCT 56 postoperative mortality 56 percutaneous interventions 56 limb sparing 56 TLIF 56 postoperative atrial fibrillation 56 vaginal vault 56 cytoreduction 56 hepatic arterial 56 coronary revascularization 56 balloon valvuloplasty 56 RVOT 56 thorough QT 56 interferon ribavirin 56 anastomotic 56 arthrodesis 56 retroperitoneal 56 autogenous bone graft 56 perioperative morbidity 56 urethral stricture 56 graft patency 56 anterior vertebral 56 tibial plateau fractures 56 engineered bladders 56 VCUG 56 DEXA scans 56 Nissen fundoplication 56 preoperative 56 perfusion abnormalities 56 unicondylar 56 gynaecologic 56 ovarian malignancy 56 chronic GVHD 56 coronary bypass graft 56 wound debridement 56 patients undergoing CABG 56 arthroscopic rotator cuff 56 postoperative radiographs 56 bone marrow aspiration 56 laparoscopic nephrectomy 56 vertebral compression fracture 56 patients undergoing noncardiac 56 tibial fractures 56 nephrectomy 56 total thyroidectomy 56 prognostic variables 56 coronary arteriography 56 shock wave lithotripsy 56 transvaginal mesh 56 sonographic evaluation 56 Stabilimax NZ 56 metaanalysis 56 liver biopsies 56 aseptic loosening 56 nonmetastatic prostate cancer 56 cytoreductive surgery 56 histologic findings 56 bowel resection 55 neurodevelopmental outcomes 55 related bloodstream infections 55 keratectomy 55 Postoperatively 55 renal transplants 55 FDG PET CT 55 interventional vascular 55 clinicopathological 55 antibiotic impregnated 55 AF ablation 55 cardiopulmonary bypass CPB 55 photocoagulation 55 interventional therapies 55 intravenous cyclophosphamide 55 revision arthroplasty 55 BPS IC 55 chiropractic manipulation 55 pelvic ultrasound 55 adnexal masses 55 vascular stenting 55 ultrasonographic 55 LapBand 55 primary hyperparathyroidism 55 endoscopic retrograde 55 underwent angiography 55 tamponade 55 guideline concordant 55 lung resections 55 lesional 55 perioperative complications 55 ESWL 55 articular cartilage defects 55 transfemoral approach 55 randomized blinded 55 thoracentesis 55 AFRS TM 55 ductal lavage 55 bronchoalveolar lavage 55 gynecologic procedures 55 hindfoot 55 budesonide foam 55 assisted laparoscopic prostatectomy 55 percutaneous valve 55 symptomatic paroxysmal AF 55 anterior pelvic 55 autologous tissue 55 coronary CTA 55 FDG-PET/CT 55 renal denervation 55 resections 55 suprapubic 55 nonsurgical treatment 55 lumbar fusions 55 postoperative infections 55 cytological 55 preoperative intraoperative 55 deformity correction 55 androgen ablation 55 laparascopic 55 glenohumeral joint 55 pleurodesis 55 postoperative infection 55 polidocanol 55 coronary intervention 55 trabeculectomy 55 meniscal repair 55 everolimus eluting stents 55 phase IIIb 55 eSVS MESH 55 laparoscopic surgical procedures 55 defibrillator implantation 55 coronary artery bypass grafts 55 carotid artery stent 55 percutaneous transluminal coronary angioplasty 55 diagnostic angiography 55 enthesitis 55 diagnostic laparoscopy 55 tumor resection 55 needle aspiration 55 meta analytic 55 invasive aspergillosis 55 intravitreal injections 55 limb lengthening 55 biochemical recurrence 55 gastroduodenal 55 adjustable gastric banding 55 thoracic aortic aneurysms 55 hemodialysis patients 55 radical nephrectomy 55 neoadjuvant therapy 55 axillary dissection 55 debulking surgery 55 radiochemotherapy 55 CABG surgeries 55 femoral neck fractures 55 Surgical excision 55 Liver transplantation 55 hip arthroscopy 55 ulcer healing 55 doxorubicin HCl 55 PSA nadir 55 radiographic evaluation 55 fibrin glue 55 reconstructive procedures 55 Bankart lesion 55 allogeneic HSCT 55 chronic osteomyelitis 55 NATRECOR ® 55 radiographic imaging 55 osteochondral defects 55 graft occlusion 55 autologous SCT 55 intravenous diuretics 55 postsurgery 55 urodynamic parameters 55 LNG IUS 55 thoracoscopic lobectomy 55 histopathologic examination 55 interobserver reliability 55 percutaneous coronary interventions 55 endothelial keratoplasty 55 IOP lowering 55 surgical excision 55 recanalization 55 antimicrobial prophylaxis 55 endometrial biopsy 55 oral anticoagulation 55 corticosteroid injections 55 elective orthopedic 55 chemoradiotherapy 54 clogged carotid artery 54 bunionectomy 54 dosimetric 54 endoprosthesis 54 neurosurgical procedures 54 nasal polyposis 54 symptomatic VTE 54 spontaneous regression 54 Arteriovenous 54 somatosensory evoked potentials 54 cementless 54 pulmonary toxicity 54 catheter insertion 54 antibiotic regimens 54 postmarket surveillance 54 lung biopsies 54 retrospective cohort 54 osteoid osteoma 54 cytologic 54 laparoscopic appendectomy 54 intraoperative 54 prostate TURP 54 laparotomy 54 pain palliation 54 ablative therapies 54 lumbar spine fusion 54 anterior lumbar interbody fusion 54 laparoscopic partial nephrectomy 54 DVT PE 54 osteoporotic compression fractures 54 callus formation 54 carotid angioplasty 54 total abdominal hysterectomy 54 cartilage defects 54 Histological 54 epidural steroid injections 54 Nerve sparing 54 allogeneic hematopoietic stem cell 54 post thrombotic syndrome 54 ablation procedures 54 nodal dissection 54 FXIII 54 rectovaginal 54 assisted laparoscopic 54 hematologic parameters 54 Edwards SAPIEN valve 54 transcervical 54 transesophageal 54 pharmacologic stress 54 radicular pain 54 reperfusion therapy 54 leiomyomas 54 neurosurgical procedure 54 osseointegration 54 CardioPass 54 palliation 54 microdebrider 54 saline infusion 54 chemoradiation therapy 54 NEUVENGE 54 demonstrated clinically meaningful 54 mid urethral sling 54 Legg Calvé Perthes disease 54 pancreatic resection 54 stem cell engraftment 54 sonographic examinations 54 perioperative mortality 54 myeloablative 54 arthroscopic surgical 54 Radical prostatectomy 54 intramedullary nailing 54 pneumonectomy 54 proximal femur 54 multivariable analyzes 54 femoral shaft fractures 54 malunion 54 randomized controlled trials RCTs 54 fallopian tube cancers 54 thrombus aspiration 54 transcatheter aortic valve implantation 54 Balloon sinuplasty 54 fragility fracture 54 pleural fluid 54 subconjunctival injection 54 keratoplasty 54 ureteral stent 54 GH deficiency 54 NSTE ACS 54 superficial femoral 54 unsedated colonoscopy 54 mitral valve repair 54 nonemergent 54 aneuploidy screening 54 angioplasty stenting 54 acute renal 54 penetrating keratoplasty 54 anticoagulated 54 nonunions 54 IMPROVE HF 54 varicoceles 54 extrapleural pneumonectomy 54 hepatectomy 54 Subgroup analyzes 54 anastomoses 54 decompressive surgery 54 ablative therapy 54 esophagectomy 54 transrectal ultrasound 54 transurethral resection 54 scalpel vasectomy 54 cardiac repolarization 54 renal tumors 54 capsulotomy 54 cystoscopic 54 atrial fibrillation ablation 54 Symptom severity 54 adjuvant radiotherapy 54 valvular 54 orthopedic surgical 54 intact parathyroid hormone 54 postop 54 pharmacokinetic characteristics 54 invasive candidiasis 54 periodontal therapy 54 extracorporeal circulation 54 mitral repair 54 β blockers 54 PET CT scanning 54 hydroxyapatite coated 54 re epithelialization 54 histopathological examination 54 ostial 54 diagnostic workup 54 neovascularisation 54 aneurysmal 54 knee osteoarthritis OA 54 IMPACT DCM 54 myocardial viability 54 papillary renal cell carcinoma 54 cortical stimulation 54 postoperative chemotherapy 54 bladder augmentation 54 Heavy menstrual bleeding 54 scintigraphic 54 diagnostic modality 54 surgical revascularization 54 recombinant FSH 54 uncemented 54 coil embolization 54 haemodynamic 54 pancreatic transplantation 54 symptomatic intracranial 54 hepatic metastases 54 rt PA 54 BST CarGel R 54 parenteral antibiotics 54 prospective multicentre 54 adenomatous 54 preoperative MRI 54 endovascular repair 54 interstitial brachytherapy 54 retrospective cohort study 54 pharmacodynamic parameters 54 incomplete revascularization 54 resection arthroplasty 54 upper gastrointestinal endoscopy 54 plaque excision 54 tricuspid valve repair 53 transthoracic echocardiography 53 undetectable HBV DNA 53 biceps tenodesis 53 antegrade 53 intraoperative complications 53 inotropes 53 distal radial fractures 53 LVRS 53 cervical fusion 53 osteoarthritic 53 median sternotomy 53 Phase III randomized controlled 53 intradermal injections 53 thoracolumbar spine 53 esophagogastroduodenoscopy 53 edifoligide 53 corneal ectasia 53 bioabsorbable 53 BRCA testing 53 intra operatively 53 transradial 53 preclinical efficacy 53 oocyte retrieval 53 osteoporotic bone 53 carotid stents 53 spinal compression fractures 53 Androxal TM 53 catheterisation 53 Phacoemulsification 53 prostatectomy 53 coronary interventions 53 robotically assisted 53 ARTISS 53 postoperative AF 53 coronary catheterization 53 cataract extraction 53 lumbar disk herniation 53 disc herniations 53 thoracic surgeries 53 acetabular 53 ureteral 53 clinicopathologic 53 degenerative spondylolisthesis 53 transapical 53 posterior lumbar interbody fusion 53 proximal humeral fractures 53 histopathological 53 renal cysts 53 Autograft 53 artery bypass 53 pretransplant 53 cytotoxic therapy 53 lumbar discectomy 53 elbow arthroplasty 53 plication 53 atherosclerotic renal artery stenosis 53 tumescent liposuction 53 lumbar interbody fusion 53 hepatorenal syndrome 53 R0 resection 53 congenital cardiac 53 transarterial chemoembolization 53 subthreshold depression 53 CABG coronary artery 53 antiplatelet medication 53 subtalar 53 postapproval 53 echocardiographic 53 ultrasonographic examination 53 metastatic malignant melanoma 53 tracheal intubation 53 minimally invasive spinal 53 prostate carcinoma 53 anticoagulation therapy 53 vein grafts 53 endovenous laser ablation 53 methodologic 53 orchidectomy 53 fibrinolysis 53 POSIDUR TM 53 presurgical 53 endometrial biopsies 53 Resection 53 lipoplasty 53 histologic examination 53 mitral valve surgery 53 analgesic efficacy 53 kyphoplasty 53 femoral fracture 53 multidose 53 laparoscopically assisted 53 surgical debridement 53 autologous transplantation 53 conventional angiography 53 lobectomy 53 hepatic fibrosis 53 SLNB 53 Sutent sunitinib 53 AGILECT R 53 eptifibatide 53 transcatheter 53 underwent resection 53 transarterial 53 urethroplasty 53 genotypic resistance 53 CPAP adherence 53 stent implantation 53 Phase IIb clinical trials 53 dexanabinol 53 abdominal pelvic 53 Implantable Cardioverter Defibrillator ICD 53 distal femur 53 Histologic 53 vivo preclinical 53 transplantation HCT 53 clinical pharmacology studies 53 truncal 53 hypertrophic scars 53 esthetic dentistry 53 prehospital 53 Dural Sealant 53 post surgical adhesions 53 didactic lectures 53 scleral buckling 53 neurosensory 53 overnight polysomnography 53 osteoporotic vertebral compression fractures 53 medically refractory 53 comorbid diagnoses 53 intravesical 53 spine fusions 53 transplantation HSCT 53 NP2 Enkephalin 53 bone metabolism 53 carotid artery stenosis 53 BrachySil TM 53 transvaginal sonography 53 percutaneous cryoablation 53 bariatric surgical 53 serum bilirubin 53 laparoscopic bariatric 53 intracranial hypertension 53 euthyroid 53 pseudoaneurysm 53 HeartNet 53 treat menorrhagia 53 tibial osteotomy 53 refractory angina 53 Minimally invasive surgery 53 Minimally invasive 53 balloon dilation 53 postoperatively 53 intratympanic 53 cerebral oximetry 53 endoscopic procedure 53 Mohs micrographic surgery 53 thromboembolic 53 systemic hypotension 53 treating uterine fibroids 53 sternotomy 53 transapical approach 53 GEM OS1 53 cervical ripening 53 cardiac catherization 53 pouchitis 53 Mitomycin C 53 acetylcysteine 53 exploratory endpoints 53 bovine thrombin 53 proximal humerus fractures 53 knee arthroscopies 53 XLIF 53 patellar dislocation 53 sutureless 53 erosive GERD 53 acute aortic dissection 53 retrospectively reviewed 53 trochanteric 53 tibial shaft 53 duplex ultrasonography 53 VNUS Closure procedure 53 haematological 53 bi ventricular pacing 53 occlusive disease 53 pulmonary artery catheterization 53 arthroscopies 53 ICD implantation 53 rhBMP 2 53 EGS# 53 multicenter trials 53 treated nonsurgically 53 thrombolytics 53 percutaneous mitral valve 53 endobronchial 53 Carotid stenting 53 artery stenosis 53 SIADH 53 densitometry 53 glomerular filtration 53 endovascular abdominal aortic 53 MRgFUS 53 autotransfusion 53 VAD implantation 53 relapsed MM 53 tricuspid 53 spinal arthrodesis 53 intravenous bisphosphonates 53 Phase IIB 53 homograft 53 Adjunctive 53 interventional cardiac 53 AutoloGel tm 53 intraperitoneal chemotherapy 53 cardiologic 53 paclitaxel eluting stents 53 vascular occlusion 53 fluoroscopically guided 53 mycophenolate mofetil MMF 53 postinjury 53 trochanteric bursitis 52 sirolimus eluting stents 52 varus deformity 52 thoracic aortic aneurysm 52 cranial irradiation 52 reoperation 52 treated nonoperatively 52 anastomotic leak 52 fibroma 52 intrahepatic 52 intertrochanteric fractures 52 cholecystectomy 52 arteriography 52 explanted 52 antiemetics 52 lumbar spinal 52 robotic prostatectomy 52 preoperative chemotherapy 52 iUni 52 osteotomies 52 invasive coronary angiography 52 seroma formation 52 percutaneous injection 52 invasive diagnostic 52 atrioventricular block 52 dorzolamide 52 pelvic reconstructive surgery 52 laparoscopic banding 52 acetabular fracture 52 cannabinor 52 laparoscopic surgical 52 colorectal cancer liver metastases 52 balloon dilatation 52 revascularization procedures 52 varicose vein removal 52 intracavitary 52 vascular lesion 52 surgical decompression 52 venous malformations 52 CHAMPION PCI 52 percutaneous aortic valve 52 multicenter clinical trials 52 artery embolization 52 transobturator 52 PET tracers 52 Multiple logistic regression 52 ejection fractions 52 pulmonary hypertension PH 52 thoracic aortic 52 perfusion CT 52 daily subcutaneous injections 52 transvenous 52 scleral 52 OrCel 52 CT perfusion 52 jugular venous 52 steroid refractory 52 ALA PDT 52 visceral metastases 52 acetabular dysplasia 52 DIEP flap 52 periosteal 52 bone scintigraphy 52 chronic hemodialysis 52 clinical 52 mucinous 52 unruptured aneurysm 52 gastrectomy 52 myoma 52 micafungin 52 cannulation 52 preintervention 52 laproscopic procedure 52 lung transplantations 52 serum lactate 52 diagnostic catheterizations 52 Phase IIIB IV 52 transforaminal 52 endoscopic surgical 52 embolic stroke 52 MAKOplasty 52 arterial grafts 52 Calcium phosphate 52 lipid altering 52 podiatric medical 52 argatroban 52 scarless surgery 52 nodal metastases 52 glucocorticoid therapy 52 Reconstructive surgery 52 cosmesis 52 dysfunctional voiding 52 Abdominoplasty 52 bronchoalveolar lavage BAL 52 TandemHeart System 52 developmental dysplasia 52 intracranial stenosis 52 deep venous thromboses 52 Achilles tendon ruptures 52 multifocal IOLs 52 left ventricular LV 52 deferiprone 52 vascularisation 52 multivariate analyzes 52 islet isolation 52 denervation 52 haematological cancers 52 endometrial hyperplasia 52 reconstructive surgical 52 Cardiopulmonary bypass 52 abnormal uterine bleeding 52 tissue oxygenation 52 membranous nephropathy 52 choroidal vasculopathy 52 Retreatment 52 infective endocarditis 52 Total Knee Replacement 52 Echocardiographic 52 prolactin elevation 52 PCIs 52 discogenic pain 52 immunochemical fecal occult 52 pelvic anatomy 52 histological examination 52 psychopharmacological 52 vertebral compression fractures VCFs 52 Minimally invasive procedures 52 organ transplantations 52 abdominal ultrasounds 52 cardioplegic arrest 52 Hyphanox 52 nonfusion 52 reinnervation 52 venipuncture 52 anthropometric measures 52 percutaneous catheter 52 hemodynamically unstable 52 gynecological surgeries 52 hemodynamic measurements 52 monoclonal gammopathy 52 allogeneic transplant 52 Zevalin consolidation 52 radiofrequency catheter ablation 52 laparoscopic fundoplication 52 atraumatic 52 sinus tarsi 52 endotracheal intubation 52 lateral radiograph 52 FOSRENOL ® 52 Thermage procedure 52 clinico pathological 52 radical prostatectomy 52 EECP ® therapy 52 antibiotic prophylaxis 52 endoscopic resection 52 noninfectious uveitis 52 periodontal defects 52 parathyroid 52 exstrophy 52 lipid lowering agents 52 ankle arthroplasty 52 endothelial activation 52 multicentric 52 Kyphoplasty