Open Access. Powered by Scholars. Published by Universities.®

Surgical Procedures, Operative Commons

Open Access. Powered by Scholars. Published by Universities.®

185 Full-Text Articles 444 Authors 24329 Downloads 46 Institutions

All Articles in Surgical Procedures, Operative

Faceted Search

185 full-text articles. Page 6 of 8.

Radiostereometric Analysis Of Tantalum Vs. Titanium Acetabular Shells In Young Thr Patients, Christina Kane, Anthony Porter, Benjamin Snyder, Marie Walcott, Michelle E. Aubin, Jacob M. Drew, Meridith Greene, Henrik Malchau, Charles R. Bragdon, David Ayers 2014 University of Massachusetts Medical School

Radiostereometric Analysis Of Tantalum Vs. Titanium Acetabular Shells In Young Thr Patients, Christina Kane, Anthony Porter, Benjamin Snyder, Marie Walcott, Michelle E. Aubin, Jacob M. Drew, Meridith Greene, Henrik Malchau, Charles R. Bragdon, David Ayers

UMass Center for Clinical and Translational Science Research Retreat

Introduction: In the active total hip replacement (THR) population, maintaining acetabular component stability and limiting polyethylene wear are crucial components to preventing premature implant failure. Titanium with Co/Cr/Mo fiber metal coating is among the most common materials used in cementless THR. Trabecular metal, composed of porous tantalum, has a metallic strut design resembling trabecular bone, designed to improve tissue infiltration and limit migration. This study assesses the stability and clinical outcomes of tantalum versus titanium acetabular shells using radiostereometric analysis (RSA) technology.

Methods: In this IRB approved, prospective, randomized, blinded study, 46 patients received a primary THR by ...


Stability Of A Tapered Femoral Stem In Total Hip Arthroplasty Using Radiostereometric Analysis, Christina Kane, Audrey Nebergall, Meridith Greene, Anthony Porter, Benjamin Snyder, Marie Walcott, Michelle E. Aubin, Jacob M. Drew, Peyton L. Hays, Mark S. Eskander, Henrik Malchau, Charles R. Bragdon, David Ayers 2014 University of Massachusetts Medical School

Stability Of A Tapered Femoral Stem In Total Hip Arthroplasty Using Radiostereometric Analysis, Christina Kane, Audrey Nebergall, Meridith Greene, Anthony Porter, Benjamin Snyder, Marie Walcott, Michelle E. Aubin, Jacob M. Drew, Peyton L. Hays, Mark S. Eskander, Henrik Malchau, Charles R. Bragdon, David Ayers

UMass Center for Clinical and Translational Science Research Retreat

Introduction: Early femoral implant stability is essential to long-term success in total hip replacement (THR). Radiostereometric analysis (RSA) provides highly precise measurements of stem micromotion relative to the femur that are otherwise not detectable by routine radiographs. This study characterized micromotion of a tapered, cementless femoral stem using RSA up to 5 years following THR.

Methods: This IRB-approved, prospective, randomized, blinded study, involved 46 patients with a mean age of 58 and BMI of 30. All patients received a cementless, porous-coated titanium double tapered stem (M/L Taper, Zimmer) manufactured with 3 tantalum RSA beads and underwent primary THR by ...


Low Self-Reported Physical Function Status Was An Excellent Predictor Of Adverse Postoperative Course In Older Veterans Having Knee And Hip Surgery, Alok Kapoor, Priscilla Chew, Joel Reisman, Dan Berlowitz 2014 University of Massachusetts Medical School

Low Self-Reported Physical Function Status Was An Excellent Predictor Of Adverse Postoperative Course In Older Veterans Having Knee And Hip Surgery, Alok Kapoor, Priscilla Chew, Joel Reisman, Dan Berlowitz

UMass Center for Clinical and Translational Science Research Retreat

Objectives: To measure the association between functional status and an adverse postoperative course.

Design: Retrospective cohort study.

Setting: Veterans Affairs Medical Center.

Participants: Older adults who underwent total hip and knee replacement (THR and TKR) at a VA facility from 2002-2009. To be included, subjects must have completed the Veteran Rand-12 (VR-12) within six months of surgery. VR-12 is a general purpose 12 item health quality survey nearly identical to the SF-12 for which the summary score of physical health called physical component score (PCS) is normed to a value of 50 for US adults with standard deviation of 10 ...


Use Of The Spine Adverse Events Severity (Saves) System To Categorize And Report Adverse Events In Spine Surgery., P. J. Wagner, T. Ailon, H. Zhou, Scott Pascal, M. B. Harrigan, Michael Stauff, Anthony Lapinsky, Patrick J. Connolly, Christian P. DiPaola 2014 University of Massachusetts Memorial Medical Center

Use Of The Spine Adverse Events Severity (Saves) System To Categorize And Report Adverse Events In Spine Surgery., P. J. Wagner, T. Ailon, H. Zhou, Scott Pascal, M. B. Harrigan, Michael Stauff, Anthony Lapinsky, Patrick J. Connolly, Christian P. Dipaola

UMass Center for Clinical and Translational Science Research Retreat

Introduction: Analysis of adverse events (AEs) in spine surgery has historically been retrospective, utilizing hospital administrative data. Our objective was to determine the incidence, severity and effect on hospital length of stay (LOS) for AEs in spine surgery using the Spine AdVerse Events Severity (SAVES V2) system.

Methods: AEs for all surgical spine patients at our institution were prospectively collected for 18 months and correlated with retrospective data from operative reports and H&Ps. Statistical analyses compared patient demographics, diagnoses, and surgical characteristics to hospital length of stay and likelihood of adverse events.

Results: This system captured 75% (765/977 ...


A Prospective Randomized Comparison Of Patient Specific Instruments With Standard Tka Instrumentation, Christina Kane, Anthony Porter, Patricia D. Franklin, David C. Ayers 2014 University of Massachusetts Medical School

A Prospective Randomized Comparison Of Patient Specific Instruments With Standard Tka Instrumentation, Christina Kane, Anthony Porter, Patricia D. Franklin, David C. Ayers

UMass Center for Clinical and Translational Science Research Retreat

Introduction: Patient specific instruments (PSI), an alternative to standard total knee arthroplasty (TKA) technology, have shown mixed results regarding effectiveness in previous studies. This study evaluated the accuracy of the predicted PSI plan, compared incremental cost savings with PSI, and compared outcomes of PSI and standard TKA patients.

Patients and Methods: This randomized, prospective feasibility study included 19 primary TKA patients receiving a cruciate-retaining cemented prosthesis from a single surgeon (DCA). 9 patients randomized to PSI received a pre-operative knee MRI for PSI fabrication using proprietary software.10 standard TKAs were completed. Operative data collected included operating times, implant details ...


Total Knee Arthroplasty Wear Is Caused By Malrotation And Excessive Laxity, Erik Woodard 2014 University of Tennessee Health Science Center

Total Knee Arthroplasty Wear Is Caused By Malrotation And Excessive Laxity, Erik Woodard

Theses and Dissertations (ETD)

Total knee arthroplasty is a proven technique which combines specially designed components and surgical processes to treat cartilage degeneration and alleviate pain in arthritic knees. However, this technique is limited by component design and surgical precision. Due to these limitations, knee arthroplasty components will eventually wear out, causing rejection and necessitating the need for a replacement. For this reason, it would be beneficial to experts if the primary causes of this wear could be identified in order to minimize the number of replacements.

This study aims to determine if a correlation exists between instability of a knee joint and the ...


Spleen, 2014 Emory University

Spleen

Naira Matevosyan, MD, PhD, JSM

Always seen as a vigorous defense organ but not a vital one, the spleen deserves a scholarship beyond its immune, blood-purifying, or iron-recycling functions. Stemmed of 261 sources, this monograph of 15 chapters and 45 illustrations presents the alpha-to-omega of an enigmatic organ, the spleen: surgical anatomy, mobility; morphology, vasculature, lymphatic drainage; innervation; innate and adaptive immune responses and neuroimmune pathways; dopamine-adrenal promiscuous expressions; nicotine-acetylcholine passages; prostaglandin synthesis; etiology, symptoms and diagnostics of the reactive and neoplastic spleen in rare congenital or systematic diseases; splenosptosis, splenomegaly and various surgical solutions; causality and treatment of the splenic rupture by non-surgical (embolization ...


Novel Chemotherapeutic Strategies In The Management Of Primary Amoebic Meningoencephalitis Due To Naegleria Fowleri., Abdul Baig 2014 Aga Khan University

Novel Chemotherapeutic Strategies In The Management Of Primary Amoebic Meningoencephalitis Due To Naegleria Fowleri., Abdul Baig

Abdul Mannan Baig

Primary amoebic meningoencephalitis (PAM) due to Naegleria fowleri is a fulminating infection that can result in death within days. The disease prognosis is poor, although early diagnosis and aggressive treatment might increase survival chances [1]. Through contaminated water, N. fowleri enters nostrils and then migrates along the olfactory nerve, through the cribriform plate into the brain [2]. PAM is characterized by parosmia, rapidly progressing to anosmia (with resultant ageusia) as the nerve cells of the olfactory bulbs are destroyed leading to seizures and finally death [3]. Despite advances in antimicrobial chemotherapy and supportive case, the mortality rate associated with PAM ...


Sexual Function Before And 1 Year After Laparoscopic Sacrocolpopexy, Charbel Salamon, Christa Lewis, Jennifer Priestley, Patrick Culligan 2014 Atlantic Health System

Sexual Function Before And 1 Year After Laparoscopic Sacrocolpopexy, Charbel Salamon, Christa Lewis, Jennifer Priestley, Patrick Culligan

Jennifer L. Priestley

Objective: This study aimed to compare sexual function before and 1 year after laparoscopic sacrocolpopexy using a porcine dermis or a polypropylene mesh material. Methods: This was a secondary analysis of sexual function measured before and 1 year after laparoscopic sacrocolpopexy in a group of 81 sexually active women participating in a randomized controlled trial comparing porcine dermis and polypropylene mesh. Sexual function was assessed using the short form of the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12). Responses to individual questions from the physical domain of the PISQ-12 were also analyzed. Additional information included the type of mesh ...


Predictive Validity Of A Training Protocol Using A Robotic Surgery Simulator, Patrick Culligan, Emil Gurshumov, Christa Lewis, Jennifer Priestley, Jodie Komar, Charbel Salamon 2014 Atlantic Health System, Morristown and Summit

Predictive Validity Of A Training Protocol Using A Robotic Surgery Simulator, Patrick Culligan, Emil Gurshumov, Christa Lewis, Jennifer Priestley, Jodie Komar, Charbel Salamon

Jennifer L. Priestley

Background: Robotic surgery simulation may provide a way for surgeons to acquire specific robotic surgical skills without practicing on live patients. Methods: Five robotic surgery experts performed 10 simulator skills to the best of their ability, and thus, established expert benchmarks for all parameters of these skills. A group of credentialed gynecologic surgeons naive to robotics practiced the simulator skills until they were able to perform each one as well as our experts. Within a week of doing so, they completed robotic pig laboratory training, after which they performed supracervical hysterectomies as their first-ever live human robotic surgery. Time, blood ...


Does A Mobile-Bearing Vs. Fixed-Bearing Total Knee Replacement Affect Post-Operative Knee Pain At One Year?, Alison P. Mackey 2014 Philadelphia College of Osteopathic Medicine

Does A Mobile-Bearing Vs. Fixed-Bearing Total Knee Replacement Affect Post-Operative Knee Pain At One Year?, Alison P. Mackey

PCOM Physician Assistant Studies Student Scholarship

OBJECTIVE: The objective of this selective EBM review is to determine whether or not a mobile-bearing vs. fixed-bearing total knee replacement affects post-operative knee pain at one year.

STUDY DESIGN: Review of three English language primary studies, published between 2008 and 2012.

DATA SOURCES: Three randomized controlled trials published after 2008 comparing post-operative knee pain in mobile vs. fixed-bearing total knee replacements using PubMed and Cochrane databases.

OUTCOMES MEASURED: Knee pain, reported by patients post-operatively using various professional questionnaires, was the primary outcome measured. Subjects reported pain experienced during specific provoking activities on the EuroQol, Western Ontario & McMaster Universities OA ...


Handoffs And Transitions In Critical Care (Hatricc): Protocol For A Mixed Methods Study Of Operating Room To Intensive Care Unit Handoffs, Meghan B. Lane-Fall, Rinad S. Beidas, Jose L. Pascual, Meredith L. Collard, Hannah G. Peifer, Tyler J. Chavez, Mark E. Barry, Jacob Gutsche, Scott D. Halpern, Lee A. Fleisher, Frances K. Barg 2014 University of Pennsylvania

Handoffs And Transitions In Critical Care (Hatricc): Protocol For A Mixed Methods Study Of Operating Room To Intensive Care Unit Handoffs, Meghan B. Lane-Fall, Rinad S. Beidas, Jose L. Pascual, Meredith L. Collard, Hannah G. Peifer, Tyler J. Chavez, Mark E. Barry, Jacob Gutsche, Scott D. Halpern, Lee A. Fleisher, Frances K. Barg

Departmental Papers (Psychiatry)

Background: Operating room to intensive care unit handoffs are high-risk events for critically ill patients. Studies in selected patient populations show that standardizing operating room to intensive care unit handoffs improves information exchange and decreases errors. To adapt these findings to mixed surgical populations, we propose to study the implementation of a standardized operating room to intensive care unit handoff process in two intensive care units currently without an existing standard process.

Methods/Design: The Handoffs and Transitions in Critical Care (HATRICC) study is a hybrid effectiveness- implementation trial of operating room to intensive care unit handoffs. We will use ...


Intravenous Acetaminophen Use In Postoperative Pain Management, Selvi K. Kumar 2014 Rhode Island College

Intravenous Acetaminophen Use In Postoperative Pain Management, Selvi K. Kumar

Master's Theses, Dissertations, Graduate Research and Major Papers Overview

Surgery is a most common source of acute pain and effective postoperative pain management is crucial for wound healing and recovery. Opiods are the mainstay for acute pain management but have various adverse effects including death. The multimodal approach involves the use of multiple drugs with varying mechanism of action to achieve optimal pain relief with less adverse effects. Intravenous acetaminophen (IVAPAP) is a new addition to the multimodal approach that appears to afford effective pain relief with a low risk profile. The purpose of this research study was to examine the impact of IVAPAP use in multimodal pain management ...


A Pilot Study To Investigate Concerns In Patients Undergoing Neck Dissection Surgery, Daniel Sundar Raj Arulananda Doss 2013 The University of Western Ontario

A Pilot Study To Investigate Concerns In Patients Undergoing Neck Dissection Surgery, Daniel Sundar Raj Arulananda Doss

Electronic Thesis and Dissertation Repository

Abstract:

This study investigates concerns in patients undergoing neck dissection surgery. Forty patients were recruited at Pre-surgery, Discharge and 1-month Post-surgery. The Patient Concerns Inventory - Level of Importance questionnaire (PCI-LOI), Shoulder Pain and Disability Index (SPADI), Neck Dissection Impairment Index (NDII) and the University of Washington - Quality of Life questionnaire (UWQOL) were used.

The study identified "Anxiety" at Pre-surgery and "Appearance" at Discharge and 1-month Post-surgery as the important patient concerns. Patients’ concerns were found to change over time. Support for cross-sectional convergent validity of the PCI-LOI was evidenced by significant correlations between the PCI-LOI and the UWQOL (r = -0 ...


Virtual Reality Aided Mobile C-Arm Positioning For Image-Guided Surgery, Zhenzhou Shao 2013 University of Tennessee - Knoxville

Virtual Reality Aided Mobile C-Arm Positioning For Image-Guided Surgery, Zhenzhou Shao

Doctoral Dissertations

Image-guided surgery (IGS) is the minimally invasive procedure based on the pre-operative volume in conjunction with intra-operative X-ray images which are commonly captured by mobile C-arms for the confirmation of surgical outcomes. Although currently some commercial navigation systems are employed, one critical issue of such systems is the neglect regarding the radiation exposure to the patient and surgeons. In practice, when one surgical stage is finished, several X-ray images have to be acquired repeatedly by the mobile C-arm to obtain the desired image. Excessive radiation exposure may increase the risk of some complications. Therefore, it is necessary to develop a ...


A Novel Signal Processing Method For Intraoperative Neurophysiological Monitoring In Spinal Surgeries, Krishnatej Vedala 2013 Florida International University

A Novel Signal Processing Method For Intraoperative Neurophysiological Monitoring In Spinal Surgeries, Krishnatej Vedala

FIU Electronic Theses and Dissertations

Intraoperative neurophysiologic monitoring is an integral part of spinal surgeries and involves the recording of somatosensory evoked potentials (SSEP). However, clinical application of IONM still requires anywhere between 200 to 2000 trials to obtain an SSEP signal, which is excessive and introduces a significant delay during surgery to detect a possible neurological damage. The aim of this study is to develop a means to obtain the SSEP using a much less, twelve number of recordings. The preliminary step involved was to distinguish the SSEP with the ongoing brain activity. We first establish that the brain activity is indeed quasi-stationary whereas ...


Complex Shoulder Instability: The Role Of The Latarjet Coracoid Transfer, Ryan Degen 2013 The University of Western Ontario

Complex Shoulder Instability: The Role Of The Latarjet Coracoid Transfer, Ryan Degen

Electronic Thesis and Dissertation Repository

Recurrent anterior shoulder instability is a common clinical entity often requiring surgical stabilization. Recurrence rates following soft-tissue stabilization procedures are moderately high and have been attributed to associated bony defects of either the glenoid or humeral head. Complex shoulder instability, defined as instability associated with bony defects around the shoulder, is a challenging clinical problem. The Latarjet coracoid transfer has been proposed as a treatment option and its resultant stabilizing effects have been explored in this biomechanical cadaver-based study.

For both glenoid and humeral head defects, the Latarjet coracoid transfer adequately stabilized the shoulder, outperforming other procedures often utilized for ...


Measurement And Description Of Dynamics Required For In Vivo Surgical Robotics Via Kinematic Methods, Jacob G. Greenburg 2013 University of Nebraska-Lincoln

Measurement And Description Of Dynamics Required For In Vivo Surgical Robotics Via Kinematic Methods, Jacob G. Greenburg

Mechanical (and Materials) Engineering -- Dissertations, Theses, and Student Research

With the goal of improved recovery times and reduced trauma to the patient there has been a substantial shift in the medical community’s demand for minimally invasive surgical (MIS) techniques. With the standardization of MIS becoming more commonplace in the medical field there are still many improvements that are desired. Traditional, manual methods of these surgeries require multiple incisions on the abdomen for the tools and instruments to be inserted. The more recent demand has been to localize the incisions into what is being referred to as a Laparoendoscopic Single-Site (LESS) surgery. Furthermore, the manual instruments that are commonly ...


Is Laparoscopy A Risk Factor For Bile Duct Injury During Cholecystectomy?, Terrence M. Fullum, Stephanie R. Downing, Gezzer Ortega, David C. Chang, Tolulope A. Oyetunji, Kendra Van Kirk, Daniel D. Tran, Ian Woods, Edward E. Cornwell, Patricia L. Turner 2013 Children's Mercy Hospital

Is Laparoscopy A Risk Factor For Bile Duct Injury During Cholecystectomy?, Terrence M. Fullum, Stephanie R. Downing, Gezzer Ortega, David C. Chang, Tolulope A. Oyetunji, Kendra Van Kirk, Daniel D. Tran, Ian Woods, Edward E. Cornwell, Patricia L. Turner

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND AND OBJECTIVES: Previously, risk factors for bile duct injury have been identified as acute cholecystitis, male gender, older age, aberrant biliary anatomy, and laparoscopic cholecystectomy.

METHODS: A retrospective analysis of the Nationwide Inpatient Sample from 1998 to 2006 was performed with an inclusion criterion of cholecystectomy performed on hospital day 0 or 1. Patient- and hospital-level factors potentially associated with bile duct injury were examined by logistic regression.

RESULTS: A total of 377,424 cholecystectomy patients were identified. There were 1124 bile duct injuries (0.30%), with 177 (0.06%) in the laparoscopic cholecystectomy group and 947 (1.46 ...


An Assessment Of Novel Biodegradable Magnesium Alloys For Endovascular Biomaterial Applications, Dharam Persaud-Sharma 2013 Florida International University

An Assessment Of Novel Biodegradable Magnesium Alloys For Endovascular Biomaterial Applications, Dharam Persaud-Sharma

FIU Electronic Theses and Dissertations

Magnesium alloys have been widely explored as potential biomaterials, but several limitations to using these materials have prevented their widespread use, such as uncontrollable degradation kinetics which alter their mechanical properties. In an attempt to further the applicability of magnesium and its alloys for biomedical purposes, two novel magnesium alloys Mg-Zn-Cu and Mg-Zn-Se were developed with the expectation of improving upon the unfavorable qualities shown by similar magnesium based materials that have previously been explored. The overall performance of these novel magnesium alloys has been assessesed in three distinct phases of research: 1) analysing the mechanical properties of the as-cast ...


Digital Commons powered by bepress