Effect of COVID-19 on the prevalence of bystanders performing cardiopulmonary resuscitation: A systematic review and meta-analysis.

Background: The importance of bystander cardiopulmonary resuscitation (CPR) during out-of-hospital cardiac arrests is especially important in the context of coronavirus disease 2029 (COVID-19) because it can significantly influence survival outcomes. The objective of this meta-analysis was to examine the primary outcomes of bystander CPR during the pandemic and pre-pandemic periods.

Methods: A search was conducted in the PubMed Central, Scopus, and EMBASE databases, as well as the Cochrane Central Register of Controlled Trials database, up to December 10, 2023.

Effect of SARS-CoV-2 infection on out-of-hospital cardiac arrest outcomes - systematic review and meta-analysis.

Introduction And Objective: The COVID-19 pandemic caused by the SARS-CoV-2 virus has recently presented the world with an unprecedented challenge. The purpose of this systematic review and meta-analysis is to investigate the relationship between SARS-CoV-2 infection and out-of-hospital cardiac arrest (OHCA) by comparing data from infected and non-infected individuals. The study adds to our understanding of the broader effects of the pandemic on public health and emergency care by examining the influence of COVID-19 on OHCA.

OSS Implant Fracture as a Complication of Resection Arthroplasty Performed Following High-energy Knee Injury. Case Study.

Treatment of high-energy distal femoral fractures is highly demanding. Advances in osteosynthesis tech-niques now allow for successful treatment, but extensive bone defects associated with the injury can preclude stable bone healing. Modular arthroplasty may be an effective alternative in such cases.

Sport and physical activity after ankle arthrodesis with Ilizarov fixation and internal fixation.

Background: Severe osteoarthritis (OA) of the ankle joint constitutes an important social problem.

Objectives: We used (1) the GRIMBY scale, (2) the LOWER LIMB Activity scale, (3) the UCLA (University of California Los Angeles) activity scale, (4) the VAS (visual analogue scale) ACTIVITY scale, and (5) the FAAM (foot and ankle ability measure) SPORT scale to verify whether the type of ankle joint arthrodesis stabilization affected sports and physical activity levels.

Material And Methods: We carried out a prospective clinical study of 47 patients who had undergone ankle arthrodesis with Ilizarov external fixator stabilization (Group 1, n = 21) or internal stabilization with screws (Group 2, n = 26) at Orthopaedic Clinic at the Wroclaw Medical University, Poland, from 2007 to 2015.

Kyphosis correction after vertebroplasty in osteoporotic vertebral compression fractures.

Percutaneous vertebroplasty is a minimally invasive method of treating vertebral compression fractures aimed mainly at reduction of pain. It has been observed that fractured vertebral bodies filled in with cement might also influence the increase of their height and thus lead to reduction of post-traumatic spine kyphosis. The aim of the research was to assess the possibility of reducing the kyphotic deformation of operated spine through kyphosis measurement of vertebras adjacent to fracture.

Influence of cementless cup surface on stability and bone fixation 2 years after total hip arthroplasty.

Loss of fixation between bone and implant surface is one of the main treatment problems in total hip arthroplasty. It might lead to implant instability, bone loss and treatment failure resulting in revision surgery. Surface modification is a method for improving bone response to implant and increasing implant osseointegration.

Methods of reducing allogeneic blood demand in orthopedic surgery.

Despite advances in this field, allogeneic blood transfusion still carries a lot of risk; the availability of heterologous blood is also constantly decreasing. We describe the most popular methods for reducing the allogeneic blood requirement. Basic information is presented about the physiological mechanisms of compensation for intraoperative blood loss, which can be compromised by respiratory and cardiovascular disease or infections.

Evaluation of blood loss and significance of postoperative autotransfusion in knee joint alloplasty.

Background: The aim of this paper is to evalute perioperative blood loss associated with total cemented knee joint alloplasty, with special regard to specific factors that may influence this loss. Additionally, the significance of postoperative autotransfusion in these procedures is assessed.

Materials And Methods: The study group consisted of 85 patients (61 females and 24 males); in 32 cases a postoperative autotransfusion system was used (CBCII ConstaVac, Stryker).

Influence of whiplash injury on cervical spine stability.

The aim of this study was to define the influence of whiplash injury on cervical spine stability. The study involved 72 patients who had suffered from sprain injury to cervical spine of 0⁰-III⁰ according to QTF. To verify the results the authors examined the control group whose representatives have never suffered from any cervical spine injury and met all the exclusion criteria.

Evaluation of dynamic formation of cervical spine column based on functional radiological studies in patients after cervical spine injury.

The purpose of this study was to evaluate cervical spine function, based on our own functional method of roentgenometric analysis in patients who suffered from cervical spine sprain injury. Study involved 72 patients who suffered from cervical spine whiplash injury. Conventional plain radiographs in all patients included three lateral views: maximum flexion, neutral (resting) and maximum extension.

Distribution of radiological density in bone regenerate in relation to cyclic displacements of bone fragments.

We asked how bone fragment displacement could influence the distribution of radiological density in bone regenerate formed during the process of bone lengthening. The metatarsi of 21 sheep were lengthened by 20 mm by the Ilizarov method. The bone fragments were externally fixed with a specially designed ring external fixator equipped with linear actuator driver system.

Elliptical head hemiarthroplasty in the treatment of femoral neck and head fractures--preliminary report.

Background: The aim of his study is to evaluate efficacy of elliptical head hemiarthroplasty in treatment of femoral neck and head fractures and related complications in young patients under 55 years of age.

Material And Methods: Uncemented elliptical head hemiarthroplasty was performed in 14 patients aged 28-55, mean age of 46,7 years, out of whom 12 diagnosed with a femoral neck fracture or related complications and 2 with a femoral head fracture. Mean follow-up period was 4,5 years, range from 10 months to 6 years.

Evaluation of follow-up results of McBride operative treatment for hallux valgus deformity.

Background: Hallux valgus still remains a problem in orthopaedic surgery, a fact attested to by over a hundred operating procedures for the correction of this deformity that have been elaborated until now. The aim of the study was to evaluate the results of the McBride procedure for surgical correction of the hallux valgus deformity using an anatomic & functional foot scoring system and roentgenometric assessment.

Material And Methods: 121 feet in 65 women who underwent the McBride procedure for a hallux valgus deformity at the Orthopaedic Department of the Wrocław University of Medicine in the years 1995-2001 were analysed.

Efficacy of closed reduction and maintenance of surgical outcome in plaster cast immobilization in different types of distal radius fractures.

Background: The aim of this paper is to evaluate the results maintaining after closed reduction of distal radius fracture and to assess difficulties in restoration of the articular surface continuity with reference to the type of fracture according to the AO classification.

Material And Methods: 65 patients were included in the study (40 female, 25 male), mean age of 59 years (19-84), diagnosed with the distal radius fracture, treated by closed reduction and a plaster cast immobilization. The mean immobilization period was 40 days (25-50).

Our experiences in the reconstruction of bone stock deficiency with allogenous lyophilized bone graft after surgical resection of the giant-cell tumour.

Introduction. The aim of this work is to evaluate lyophilized bone graft addressed in deficiency of bone stock after surgical resection of the giant-cell tumour. The adaptive remodeling of the graft in a function of time was screened as well.

Some aspects of treatment of metastatic bone tumors.

Background. Metastatic bone tumors are the most frequently met malignant musculoskeletal tumors. Asymptomatic and hidden onset of the primary stage of the illness may state very serious diagnostic and treatment problems for the orthopaedic surgeon, oncologist and radiotherapist.

Treatment of non-union of the forearm using distraction-compression osteogenesis.

Background: The goal of the study is presentation broad abilities like gives Ilizarov method in the treatment of posttraumatic nonunion the of forearm with concomitant shortening and axis deformity, in minimally invasive technique, with contemporary axis correction and lengthening .

Material And Methods: . Authors present 6 patient operated on with the use of Ilizarov method, in years 2001-2005 , suffer from vital nonunion of the forearm - 6 cases radius; 1 case ulna and radius.

The impact of selected biological factors on bone regeneration in distraction osteogenesis.

Background. Comparatively few reports have analyzed the biological factors influencing the course of distraction osteogenesis, such as the etiology and magnitude of shortening or the patient's age at surgery. The aim of our study was to assess the impact of selected biological factors on the course of bone regeneration in distraction osteogenesis of the lower leg.

Assessment of Ilizarov's method in intraarticular calcaneal fractures.

Background. Hindfoot dysfunction after intrarticular fracture of calcaneus are evokated by disturbances of muscle balance caused by change of bone shape and disturbances of talo-calcanear join function caused by secondary arthrosis of the joint. Goal of fracture treatment is restoring joint surfaces and the shape of calcaneus.

[Rationalizing blood management in orthopedics and traumatology].

In recent years there has been growing interest in blood conservation and avoidance of transfusion in patients undergoing orthopedic surgery. The benefits of blood transfusion must be considered and evaluated in terms of risk factors relating to the adverse effects of transfusion. A number of strategies are available to reduce the need for blood transfusion.

[The use of thermographic examination to evaluate outcome in the conservative and surgical treatment of lateral scoliosis].

Background. Diagnosis and evaluation of treatment outcome in scoliosis require the implementation of simple, noninvasive and accurate diagnostic methods. Thermovision, depending on remote skin surface temperature measurement, has found application in various medical disciplines.

Local experience in the surgical treatment of primary malignant and metastatic bone tumors of the proximal femur.

Background. The introduction of new techniques for fixation of long bones and postresectional prosthetic replacement, combined with chemotherapy and radiotherapy, have created new possibilities for the surgical treatment of primary and metastatic bone tumors. The main problem is still the time of diagnosis and the proper choice of operative treatment.

The value of autotransfusion in the management of intraoperative blood loss during orthopedic surgery.

The principal advantage of autologous blood transfusions is the danger of transmitting infectious agents and the adverse immunomodulatory effects of allogenic transfusion can be avoided. The effectiveness of preoperative autologous blood donation in reducing allogenic blood exposure is undisputed. The current discussion focuses on cost effectiveness versus the potential risks of autologous blood donation, and on transfusion criteria for autologous versus allogenic blood.

Experimental studies on the effect of osteotomy technique on the bone regeneration in distraction osteogenesis.

The objective of the experiment was to study the effect of osteotomy technique on the course of bone regeneration in distraction osteogenesis in sheep. Thirty five merino sheep were divided into 5 groups of 7 sheep each, depending on the osteotomy technique: subcutaneous corticotomy, open corticotomy, Cattaneo corticotomy, open osteotomy and osteoclasia. Formation of regenerate and its remodeling was assessed, based on roentgenograms and morphological examination (bone sections, histological evaluation, SEM, superficial X-ray analysis).