18,186 results match your criteria series final


In-Office Needle Arthroscopy for the Treatment of Anterior Ankle Impingement Yields High Patient Satisfaction with High Rates of Return to Work and Sport.

Arthroscopy 2021 Sep 24. Epub 2021 Sep 24.

NYU Langone Health, Department of Orthopaedic Surgery, New York, NY. Electronic address:

Purpose: The purpose of the current study was to evaluate the clinical outcomes of in-office needle arthroscopy (IONA) for the treatment of anterior ankle impingement in the office setting, and also evaluate patient experience of the IONA procedure.

Methods: A prospectively collected database of 31 patients undergoing IONA for the treatment of anterior ankle impingement between January 2019 and January 2021 was retrospectively reviewed. Inclusion criteria for this study was: patients ≥ 18 years of age, clinical history, physical exam, radiographic imaging, and MRI consistent with anterior ankle impingement for which each patient underwent IONA and had a minimum of 12-month follow-up. Read More

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September 2021

Quantum Chemical Study of a Radical Relay Mechanism for the HydG-Catalyzed Synthesis of a Fe(II)(CO)(CN)cysteine Precursor to the H-Cluster of [FeFe] Hydrogenase.

Biochemistry 2021 Sep 27. Epub 2021 Sep 27.

Department of Chemistry, University of California Davis, Davis, California 95616, United States.

The [FeFe] hydrogenase catalyzes the redox interconversion of protons and H with a Fe-S "H-cluster" employing CO, CN, and azadithiolate ligands to two Fe centers. The biosynthesis of the H-cluster is a highly interesting reaction carried out by a set of Fe-S maturase enzymes called HydE, HydF, and HydG. HydG, a member of the radical -adenosylmethionine (rSAM) family, converts tyrosine, cysteine, and Fe(II) into an organometallic Fe(II)(CO)(CN)cysteine "synthon", which serves as the substrate for HydE. Read More

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September 2021

Improvement of clinical and radiological outcomes of root repair patients with advanced articular cartilage degeneration and osteoarthritis.

J Exp Orthop 2021 Sep 27;8(1):82. Epub 2021 Sep 27.

Sunshine Coast Orthopaedic Clinic, Suite 17 Level 2, Kawana Private Hospital, 5 Innovation Parkway, Birtinya, QLD, 4575, Australia.

Purpose: The main purpose of this study was to investigate clinical and radiological outcomes of medial meniscus posterior root tear (MMPRT) repair in knees with advanced articular cartilage degeneration and osteoarthritis compared to those with minimal degenerative change.

Methods: Thirty-three knees underwent MMPRT repair using an arthroscopic pullout repair tibial tunnel technique. Clinical scores including Lysholm Score, International Knee Documentation Committee (IKDC) Score and Knee injury and Osteoarthritis Outcome (KOOS) Score were collected preoperatively and sequentially at 6 months, 12 months and mean final follow-up of 39. Read More

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September 2021

Arthroscopic Fixation of Avulsion Fractures of the Lesser Tuberosity of the Humerus: Clinical Outcomes With a Mean 3.5-Year Follow-up.

Orthop J Sports Med 2021 Sep 22;9(9):23259671211029886. Epub 2021 Sep 22.

Institute of Sports Medicine, Peking University Third Hospital, Beijing, PR China.

Background: Avulsion fracture of the lesser tuberosity (AFLT) of the humerus has traditionally been treated with open reduction internal fixation using screw fixation. The clinical outcomes of arthroscopic repair with suture anchors remains unknown.

Hypothesis: It was hypothesized that arthroscopic fixation with suture anchors would result in good clinical outcomes for the treatment of AFLT. Read More

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September 2021

Induced Membrane Technique for the Treatment of Infected Forearm Nonunion: A Retrospective Study.

J Hand Surg Am 2021 Sep 22. Epub 2021 Sep 22.

Department of Orthopedics, The General Hospital of Northern Theater Command, Shenyang, Liaoning Province, China.

Purpose: Infected forearm nonunion remains a challenge for the hand surgeon. Autologous bone grafting within an induced membrane following implantation of a cement spacer, also known as the Masquelet technique, is a procedure used for addressing segmental bone defects. This report summarized our experience using this technique to treat the infected forearm nonunion. Read More

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September 2021

Investigating the Role of the Catalyst within Resorcinol-Formaldehyde Gel Synthesis.

Gels 2021 Sep 15;7(3). Epub 2021 Sep 15.

Department of Chemical and Process Engineering, University of Strathclyde, Glasgow G1 1XJ, UK.

Resorcinol-formaldehyde (RF) gels are porous materials synthesized via a sol-gel reaction and subsequently dried, producing structures with high surface areas and low densities-properties that are highly attractive for use in various applications. The RF gel reaction takes place in the presence of a catalyst, either acidic or basic in nature, the concentration of which significantly impacts final gel properties. The full extent of the catalyst's role, however, has been subject to debate, with the general consensus within the field being that it is simply a pH-adjuster. Read More

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September 2021

Current advances of functional phytochemicals in Nicotiana plant and related potential value of tobacco processing waste: A review.

Biomed Pharmacother 2021 Sep 22;143:112191. Epub 2021 Sep 22.

School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia. Electronic address:

Tobacco is grown in large quantities worldwide as a widely distributed commercial crop. From the harvest of the field to the process into the final product, a series of procedures generate enormous amount of waste materials that are rarely recycled. In recent years, numerous potential bioactive compounds have been isolated from tobacco, and the molecular regulatory mechanisms related to the performance of some functionalities have been identified. Read More

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September 2021

Magnetically Controlled Growing Rods Graduation: Deformity Control with High Complication Rate.

Spine (Phila Pa 1976) 2021 Oct;46(20):E1105-E1112

Tel Aviv Sourasky Medical Center, Dana-Dwek Childrens Hospital, Pediatric Orthopedic Surgery, Tel Aviv, Israel.

Study Design: A multicenter retrospective review of consecutive series of patients.

Objective: Long-term experience with using the magnetically controlled growing rods (MCGR) to treat patients with deformity in the growing spine to the conclusion of treatment with posterior spine fusion.

Summary Of Background Data: MCGR treatment for growing spine gained popularity with paucity of long-term follow up data. Read More

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October 2021

Machine Learning-Aided Causal Inference Framework for Environmental Data Analysis: A COVID-19 Case Study.

Environ Sci Technol 2021 Sep 24. Epub 2021 Sep 24.

Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's A1B 3X5, Newfoundland and Labrador, Canada.

Links between environmental conditions (e.g., meteorological factors and air quality) and COVID-19 severity have been reported worldwide. Read More

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September 2021

Walking cadence (steps/min) and intensity in 61-85-year-old adults: the CADENCE-Adults study.

Int J Behav Nutr Phys Act 2021 Sep 23;18(1):129. Epub 2021 Sep 23.

Department of Mathematics and Statistics, University of Massachusetts Amherst, Amherst, MA, USA.

Background: Heuristic (i.e., evidence-based, rounded) cadences of ≥100 and ≥ 130 steps/min have consistently corresponded with absolutely-defined moderate (3 metabolic equivalents [METs]) and vigorous (6 METs) physical activity intensity, respectively, in adults 21-60 years of age. Read More

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September 2021

Atypical Lobular Hyperplasia and Classic Lobular Carcinoma In Situ Can Be Safely Managed Without Surgical Excision.

Ann Surg Oncol 2021 Sep 23. Epub 2021 Sep 23.

Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA.

Background: Based on modern series demonstrating low upgrade rates for pure lobular neoplasia (LN) diagnosed on core needle biopsy (CNB), our institution no longer recommends routine excision, provided imaging is concordant. This study describes outcomes in patients managed without surgical excision.

Methods: From an institutional database, we identified all patients with a diagnosis of pure atypical lobular hyperplasia and/or classic lobular carcinoma in situ on CNB managed without surgical excision (i. Read More

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September 2021

High varus stem alignment in short-stem total hip arthroplasty: a risk for reconstruction of femoro-acetabular offset, leg length discrepancy and stem undersizing?

Arch Orthop Trauma Surg 2021 Sep 23. Epub 2021 Sep 23.

Department for Orthopedics and Traumatology, Kepler University Hospital GmbH, Krankenhausstrasse 9, 4020, Linz, Austria.

Purpose: Short stems are increasingly used in in total hip arthroplasty (THA) because of advantages in bone and soft tissue preservation and reconstruction of hip geometry. Short stems can be inserted in a more varus position compared to conventional straight stems. This poses the risk of final varus misplacement of the femoral component, which is not intended in all femoral short stems. Read More

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September 2021

Nitrosobenzene-Enabled Chiral Phosphoric Acid Catalyzed Enantioselective Construction of Atropisomeric N-Arylbenzimidazoles.

Angew Chem Int Ed Engl 2021 Sep 23. Epub 2021 Sep 23.

Hangzhou Normal University, chemistry, CHINA.

Described herein is an imidazole ring formation strategy for the synthesis of axially chiral N-arylbenzimidazoles by means of chiral phosphoric acid catalysis. Two sets of conditions were developed to transform two classes of 2-naphthylamine derivatives into structurally diverse N-arylbenzimidazole atropisomers with excellent chemo- and regioselectivity as well as high levels of enantiocontrol. It is worth reflecting on the unique roles played by the nitroso group in this domino reaction. Read More

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September 2021

Generative Design Procedure for Embedding Specified Planar Behavior in Modular Soft Pneumatic Actuators.

Soft Robot 2021 Sep 21. Epub 2021 Sep 21.

Department of Mechanical and Mechatronic Engineering, Stellenbosch University, Stellenbosch, South Africa.

A modular actuator construction consisting of smaller articulating units in series was designed to construct soft pneumatic actuators. These units are constructed to have a preferential bending direction using Mold Star 15 and Smooth-Sil 950 silicone. By changing the orientation of each unit, a different deformed actuator shape can be achieved. Read More

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September 2021

Designing an Indoor Air Quality Monitoring App for Asthma Management in Children: User-Centered Design Approach.

JMIR Form Res 2021 Sep 22;5(9):e27447. Epub 2021 Sep 22.

School of Communication and Information, Rutgers University, New Brunswick, NJ, United States.

Background: Indoor air pollution is a well-known risk factor that triggers and exacerbates asthma, the most common pediatric chronic disease. Using a mobile app to monitor indoor air quality could be promising in engaging children in keeping their indoor air quality clean and healthy as secondary environmental prevention for asthma management. However, no app is available to allow children to monitor, assess, and improve their indoor air quality. Read More

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September 2021

Nearside-Farside Analysis of the Angular Scattering for the State-to-State H + HD → H + D Reaction: Nonzero Helicities.

J Phys Chem A 2021 Sep 22. Epub 2021 Sep 22.

Department of Chemistry, The University of Manchester, Manchester M13 9PL, United Kingdom.

We theoretically analyze the differential cross sections (DCSs) for the state-to-state reaction, H + HD( = 0, = 0, = 0) → H( = 0, = 1,2,3, = 1,..,) + D, over the whole range of scattering angles, where , , and are the vibrational, rotational, and helicity quantum numbers for the initial and final states. Read More

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September 2021

Withanolide-Type Steroids from Inhibit HIV Transcription.

J Nat Prod 2021 Sep 22. Epub 2021 Sep 22.

Instituto Universitario de Bio-Orgánica Antonio González and Departamento de Química Orgánica, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife Spain.

The aim of the present study is to report the isolation, structural elucidation, and antiviral evaluation of four new withanolide-type steroids, named nicansteroidins A-D (-), together with nine related known compounds (-) isolated from the aerial parts of . Their structures were established based on an extensive spectroscopic analysis, including 1D and 2D NMR techniques. Outstandingly, nicansteroidins A and B possess an unusual side chain with an exocyclic double bond on the δ-lactone system, whereas nicansteroidins C and D have an uncommon cycloperoxide functionality in ring A as distinct structural motifs. Read More

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September 2021

Evaluation of a New Neural Network Classifier for Diabetic Retinopathy.

J Diabetes Sci Technol 2021 Sep 22:19322968211042665. Epub 2021 Sep 22.

Professor of Diabetes, Swansea University Medical School, Swansea, Wales, UK.

Background: Medical image segmentation is a well-studied subject within the field of image processing. The goal of this research is to create an AI retinal screening grading system that is both accurate and fast. We introduce a new segmentation network which achieves state-of-the-art results on semantic segmentation of color fundus photographs. Read More

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September 2021

Long-term infant outcomes after hyperbaric oxygen treatment for acute carbon monoxide poisoning during pregnancy.

Diving Hyperb Med 2021 Sep;51(3):248-255

Department of Undersea and Hyperbaric Medicine, Saglik Bilimleri Universitesi, Gulhane Egitim ve Arastirma Hastanesi, Ankara, Turkey.

Introduction: Carbon monoxide (CO) poisoning in pregnant women is linked to foetal mortality of 36-67%. This study assessed long-term fetal outcomes following hyperbaric oxygen treatment (HBOT) for acute CO poisoning in pregnant women. The effects of clinical severity parameters and pregnancy trimester were also analysed. Read More

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September 2021

Safety of Ibuprofen in Children With G6PD Deficiency: A Systematic Review.

Laryngoscope 2021 Sep 21. Epub 2021 Sep 21.

Department of Otolaryngology-Head & Neck Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, U.S.A.

Introduction: Ibuprofen is included on websites and frequently referenced lists as medium risk for inducing hemolysis in children with glucose-6-phosphate dehydrogenase (G6PD) deficiency. This presents a challenge for otolaryngologists who perform tonsillectomy and other surgeries in children, as ibuprofen serves as an important alternative to opioids for perioperative pain control. We systematically review published literature and national medication databases to evaluate the risk of hemolytic anemia and related complications when ibuprofen is used in children with G6PD deficiency. Read More

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September 2021

Ability of final PET/CT to predict response to first-line treatment in real patients with classical Hodgkin lymphoma.

Int J Hematol 2021 Sep 21. Epub 2021 Sep 21.

Medical Oncology Intercentre Unit, Regional and Virgen de La Victoria University Hospitals, IBIMA, Teatinos, s/n, C.P., 29010, Málaga, Spain.

Up to 25% of patients with classical Hodgkin lymphoma (cHL) and a negative interim PET/CT will progress. Unfortunately, there are few published studies on the predictive value of PET/CT performed after finishing treatment. The objective of our study was to assess the role of the final PET/CT (fPET/CT) in predicting progression in a retrospective series of patients treated in the last 10 years with a homogeneous protocol (ABVD + / - radiotherapy). Read More

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September 2021

Fine needle aspiration and core needle biopsy of the spleen: A case series illustrating current practices and challenges.

Diagn Cytopathol 2021 Sep 21. Epub 2021 Sep 21.

Virginia Commonwealth University Health, Richmond, Virginia, USA.

Introduction: Splenic fine needle aspiration (FNA) and core needle biopsies (CNB) are rare specimen types, potentially avoided due to clinical concern for hemorrhagic complications. The safety and utility of splenic FNA, the role of rapid onsite evaluation (ROSE), as well as the diagnostic utility of CNB versus FNA have not been recently reviewed.

Materials And Methods: A 10-year retrospective review was performed of percutaneous image-guided FNA and CNB of the spleen. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 8: Judgment impact.

J Chiropr Educ 2021 Sep;35(S1):117-131

Objective: This paper is the eighth in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this paper is to discuss the possible impact that the final decision in favor of the plaintiffs may have had on the chiropractic profession.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 2: Rise of the American Medical Association.

J Chiropr Educ 2021 Sep;35(S1):25-44

Objective: This paper is the second in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated anti-trust law by restraining chiropractors' business practices. The purpose of this paper is to provide a brief review of the history of how the AMA rose to dominate health care in the United States, and within this social context, how the chiropractic profession fought to survive in the first half of the 20th century.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 1: Origins of the conflict.

J Chiropr Educ 2021 Sep;35(S1):9-24

Objective: This paper is the first in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this paper is to provide a brief review of the history of the AMA and the origins of chiropractic and to explore how the AMA began its monopoly of health care in the United States, possible reasons that organized medicine acted against chiropractic, and how these events influenced the chiropractic profession.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 4: Committee on Quackery.

J Chiropr Educ 2021 Sep;35(S1):55-73

Objective: This is the fourth article in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit, in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this article is to provide a brief review of the history of the origins of AMA's increased efforts to contain and eliminate the chiropractic profession and the development of the Chiropractic Committee, which would later become the AMA Committee on Quackery.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 6: Preparing for the lawsuit.

J Chiropr Educ 2021 Sep;35(S1):85-96

Objective: This is the sixth article in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this article is to provide a brief review of the plaintiffs, lead lawyer, and the events immediately before the lawsuit was filed.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 3: Chiropractic growth.

J Chiropr Educ 2021 Sep;35(S1):45-54

Objective: This is the third paper in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this paper is to provide a brief review of the history of the growth of chiropractic, its public relations campaigns, and infighting that contributed to the events surrounding the Wilk v AMA lawsuit.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 5: Evidence exposed.

J Chiropr Educ 2021 Sep;35(S1):74-84

Objective: This is the fifth article in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this article is to provide a brief review of events surrounding the eventual end of the AMA's Committee on Quackery and the exposure of evidence of the AMA's efforts to boycott the chiropractic profession.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021

Looking back at the lawsuit that transformed the chiropractic profession part 7: Lawsuit and decisions.

J Chiropr Educ 2021 Sep;35(S1):97-116

Objective: This is the seventh paper in a series that explores the historical events surrounding the Wilk v American Medical Association (AMA) lawsuit in which the plaintiffs argued that the AMA, the American Hospital Association, and other medical specialty societies violated antitrust law by restraining chiropractors' business practices. The purpose of this paper is to provide a summary of the lawsuit that was first filed in 1976 and concluded with the final denial of appeal in 1990.

Methods: This historical research study used a phenomenological approach to qualitative inquiry into the conflict between regular medicine and chiropractic and the events before, during, and after a legal dispute at the time of modernization of the chiropractic profession. Read More

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September 2021