This study aims to estimate the risk of acquiring a medical complication or death from COVID-19 infection in patients who were admitted for orthopaedic trauma surgery during the peak and plateau of pandemic. Unlike other recently published studies, where patient-cohort includes a more morbid group and cancer surgeries, we report on a group more akin to those having routine elective orthopaedic surgery. The study included 214 patients who underwent orthopaedic trauma surgeries in the hospital between 12th March and 12th May 2020 when the COVID-19 pandemic was on the rise in the United Kingdom. Data was collected on demographic profile including comorbidities, ASA grade, COVID-19 test results, type of procedures and any readmissions, complications or mortality due to COVID-19.Abstract
Background
Methods
During COVID-19 pandemic, there has been worldwide cancellation of elective surgeries to protect patients from nosocomial transmission and peri-operative complications. With unfolding situation, there is definite need for exit strategy to reinstate elective services. Therefore, more literature evidence supporting exit plan to elective surgical services is imperative to adopt a safe working principle. This study aims to provide evidence for safe elective surgical practice during pandemic. This single centre, prospective, observational study included adult patients who were admitted and underwent elective surgical procedures in the trust's COVID-Free environment at Birmingham Treatment Centre between 19th May and 14th July’2020. Data collected on demographic parameters, peri-operative variables, surgical specialities, COVID-19 RT-PCR testing results, post-operative complications and mortality. The study also highlighted the protocols it followed for the elective services during pandemic.Abstract
Background
Methods
“Implant associated “We produced a set of 20 recombinant mAbs specific for staphylococcal antigens. Using flow cytometry and ELISA-based methods we determined the binding of these mAbs to planktonic staphylococci and Aim
Method
The current use of a spherical prosthetic humeral head in total shoulder arthroplasty results in an imprecise restoration of the native geometry and improper placement of the center of rotation, maintained in a constant position, in comparison to the native head and regardless of glenoid component conformity. A radially-mismatched spherical head to allow gleno-humeral translation is a trade-off that decreases the contact area on the glenoid component, which may cause glenoid component wear. This finding suggests that the use of a non-spherical head with a more conforming glenoid component may reduce the risk of glenoid component wear by allowing gleno-humeral translation while increasing the contact area. A non-spherical prosthetic head more accurately replicates the head shape, rotational range of motion and gleno-humeral joint kinematics than a spherical prosthetic head, compared with the native humeral head. The combination of inversion of the bearing materials with the non-spherical configuration of the humeral head may thus decrease polyethylene wear. Aim of the present study is to evaluate in vitro wear behaviour of an all-polyethylene elliptical humeral head component against a metallic glenoid component in an anatomic configuration. The prosthetic components tested are from the Mirai® Modular Shoulder System by Permedica S.p.A.. The prosthetic bearing components were tested in their anatomic configuration: the humeral head rubbing against the glenoid inlay, assembled over the glenoid base-plate. The glenoid insert is made of Ti6Al4V alloy coated with TiNbN. The glenoid insert, as the glenoid base-plate have the same shape which reproduce the native shape of the glenoid. Moreover, the glenoid insert has a concave articular surface described by two different radii on orthogonal planes. The vitamin E-blended UHMWPE humeral head is not spherical but elliptic-shaped with an articular surface described by two different profiles in sagittal and coronal plane. The component sizes combination tested have the greatest radial mismatches allowed between humeral head and glenoid insert. The test was performed up to 2.5 million of cycles applying a constant axial load of 756 N.Background
Material and methods
Orthopedic implant related surgical site infection (SSI) is a severe complication which represents an important challenge concerning to its treatment. Therefore, gram-negative orthopedic infections have recently become a global concern. Retrospective study through searching of the SCIH (infection control service) database, concerning to the year 2016 and 2017. Cases selected were those of implant placement clean surgeries (osteosynthesis or prosthetic placement) which evolved with SSI and Gram-negative bacterial growth in bone tissue or periprosthetic cultures.Aim
Method
Reverse shoulder prosthesis has been developed to treat the clinical and pathological condition noted as cuff tear arthropathy (CTA). The current models of reverse shoulder arthroplasty (RSA) expose the procedure to the risk of scapular notching, possibly leading to loosening of the glenoid. The purpose of this study was to report updated results at a minimum follow-up of four years of 25 patients underwent reverse shoulder arthroplasty between 2006 and 2010 with an eccentric 36-mm glenoid component (SMR Lima).Introduction
Aim
Reverse shoulder arthroplasty (RSA) is a reasonable treatment modality in patients with Cuff Tear Arthropaty and massive irreparable cuff tears. RSA has been shown to increase patient function and decrease pain. The aim of this study is to evaluate the clinical and radiographic results of a 44 polyethylene glenosphere. Since 2008 we treated 88 patients with cuff tear arthropaty and irreparable massive cuff tear, using an RSA. We selected 80 patients with minimum FU of 24 months in which we used an implant with polyethylene glenosphere and metal humeral insert. Size of the glenosphere used was 44. All patients were assessed with the Constant score and with VAS. The shoulder ROM was measured preoperatively and postoperatively.Introduction:
Methods:
Different surgical approaches have been proposed for the treatment of chondral lesions. However surgical management of osteochondral defects of the knee joint involving subchondral bone are still under debate. The aim of this prospective non-randomized uncontrolled clinical investigation is to confirm the effectiveness of a commercially available biomimetic osteochondral scaffold in regenerating cartilage and subchondral bone of severe osteochondral lesions of the knee joint with one step surgery.Background:
Purpose:
