Shedding light on the problem: Influence of the radiator power, source-sample distance, and exposure time on the performance of UV-C lamps in laboratory and real-world conditions.

Effective surface disinfection is crucial for preventing the spread of pathogens in hospitals. Standard UltraViolet-C (UV-C) lamps have been widely used for this purpose, but their disinfection efficiency under real-world conditions is not well understood. To fill this gap, the influence of the power of the ultraviolet radiator, source-sample distance, and exposure time on the performance of UV-C lamps against Escherichia coli and Staphylococcus epidermidis were experimentally determined in the laboratory and hospital.

"Slipped capital femoral epiphysis in a 25-year-old hypogonadic man with a large cranial chondroma: causality or coincidence? ".

Background: Slipped capital femoral epiphysis (SCFE) is a hip disorder frequently occurring in adolescence. In adults it is rare and so far very few cases have been documented.

Case Presentation: This report presents a 25-year-old patient diagnosed with an anterior fossa giant chondroma, hypogonadotropic hypogonadism, and SCFE.

Assessment of Augmented Reality in Manual Wiring Production Process with Use of Mobile AR Glasses.

Digitalization of production environment, also called Industry 4.0 (the term invented by Wahlster Wolfgang in Germany) is now one of the hottest topics in the computer science departments at universities and companies. One of the most significant topics in this area is augmented reality (AR).

Breakage of metal hip arthroplasty components: Retrieval and structural analysis.

Background: Breakage of joint arthroplasty components are rare, yet during an implant retrieval program we found several cases.

Objective: In this study we examined the components to determine the causes and mechanisms of breakage of these implants.

Methods: From our collection of 849 retrievals we selected 682 cases with metal parts (503 hip, 79 knee arthroplasties) and identified fractured components: seven hip resurfacing implants, five total hip replacement stems, one monopolar femoral head, and one modular revision femoral stem from.

Pigmented Villonodular Synovitis - Various Manifestations, Inconsistent Terminology and Treatment. Cases Study.

Pigmented villonodular synovitis (PVNS) as well as tenosynovial giant cell tumor (TGCT) are both diagnosed and described in two forms, namely a localized and diffuse type. They form a diverse group of proliferative lesions in articular synovium and tendon sheaths. The inconsistent terminology impedes communication between patients, orthopedic surgeons, radiologists and pathologists, leading to misunderstandings and delaying treatment.

[Assessment of the level of metal ions in the blood of patients after hip resurfacing--preliminary report].

Introduction: Metal-on-metal bearings characterize lower wear than metal-poly, lower fracture risk than ceramics and they allow for the manufacturing of large diameter heads. The metal ion release from the bearings is the the major concern of these articulations.

Material: The study group consisted of 16 patients who underwent hip resurfacing with Durom implant and had minimum 1 year follow-up period.

[Early results of revision hip arthroplasty using modular Restoration stem].

Unlabelled: There is an increasing number of hip joint arthroplasty procedures all over the world which are followed by revision surgery. The cases of severe bone loss and periprosthetic fractures revision of a stem can constitue a serious challenge even for an experienced orthopedic surgeon.

Material: In the research material there are 18 patients 6-50 months after the stem of the hip prosthesis revision with Stryker Restoration modular stem.

[Porous tantalum modular cups in revision hip arthroplasty].

Introduction: Modem indications for use of cemented or uncemented implants in revision hip arthroplasty are comparable. The use of bone cement provides predictable short term results, but the lack of osteointegration deteriorates its long term durability. Uncemented implants undergo osteointegration, but reduced contact with host bone may cause early loosening.

[Rehabilitation after operative treatment with hip joint preservation in adults--own experience].

In the past, the procedure for rehabilitation after hip surgery, related to the long immobilization of the operated joint, was often delayed and limited in time. Today's surgical procedures and rehabilitation allows for a quicker return to full physical fitness. Postoperative physiotherapy is mainly focused on regaining full joint function (range of motion--ROM, strength, stability).

Total hip arthroplasty following Ganz periacetabular osteotomy. Cases study.

The Ganz periacetabular osteotomy (PAO) is currently the most popular hip-sparing procedure in adults with acetabular dysplasia. If this procedure fails and a total hip arthroplasty is necessary, spatial reorientation of the acetabulum alters the conditions of implanting the acetabular component of the prosthesis. In our study, we present two cases of total hip arthroplasty in patients who had undergone PAO.

[Operative treatment of femoro-acetabular impingement in hip joint].

For many years early treatment of degenerative joint disease in hip joint included only conservative procedures or extraarticular surgery eg. pertrochanteric osteotomy, acetabular roof reconstruction. Discovery of femoro-acetabular impingement mechanism opened space for new advanced operative techniques.

[Physical activity and quality of life following total uncemented hip replacement and hip resurfacing].

Introduction: The influence of physical activity on the survival of total hip replacement remains not fully recognized. It is unclear which activities are beneficient for patients following THR.

Material: The study was conducted on group of 87 patients (94 hips) following uncemented THR with ABGII/Trident and 45 patients (51 hips) following hip resurfacing.

[Pedobarographic evaluation of the foot after Keller's procedure for Hallux valgus and Hallux rigidus].

Hallux valgus and hallux rigidus are common foot deformities. One of possible procedures is Keller's surgery. The purpose of this study is to evaluate the use of pedobarography for postoperative evaluation of the foot.

Early acute phase response following total hip replacement.

Background: The acute phase proteins are commonly known universal markers of the inflammatory process. The aim of the study was the evaluation of the acute phase response in the first 6 months THR. The secondary aim was to check if the type of hip replacement affects the acute phase response.

[Acute phase response following total hip replacement and in patients with aseptic loosening].

Introduction: Aseptic loosening is a result of the chronic inflammatory reaction in periprosthetic tissues. Its intensity depends on the implants construction material and reactivity of the host's tissues. The aim of the study was the evaluation of the acute phase proteins in various periods following total hip replacement and comparison between acute phase response observed in patients with well-functioning implants and with aseptic loosening.

Is twin pregnancy a risk factor for devolopmental dysplasia of the hip - retrospective analysis using ultrasonography.

Background. Disorders in development of the hip in the uterus are caused mainly by mechanical factors. Their influence has been established on the basis of the results of examinations of newborns from singleton pregancies.

Development and remodeling of the hip joint of preterm neonates in sonographic evaluation.

Background. Recent studies on the developmental dysplasia of the hip emphasize the role of the last trimester of pregnancy in the origin of the pathology. The aim of the study was to evaluate the development of the hip joints of preterm neonates born with different weight and in different periods of pregnancy.

A proposal for the radiological evaluation of treatment outcome in developmental dislocation of the hip and the classification of results.

The present study describes and analyzes current methods of evaluation of the morphology of the dysplastic hip found in the literature. The authors own method of evaluation is presented, which is based only on measurable parameters, and provides an objective and comparable definition of all the elements of which the joint is composed. The classification presented here enables the complete description of the morphology of the hip joint: the acetabulum, the proximal femur, the congruity of the joint, and the shape of the femoral head.

Evaluation of the operative treatment of the developmental hip dislocation performed second year of life.

Background. Both conservative and surgical treatment are applied in the treatment of developmental hip dislocation in the second year of life. Our study to evaluated the results of surgical treatment at this age using open reduction combined with transiliac osteotomy and translation of the distal insertion of the iliopsoas muscle.

[Osteoarthritis secondary to the developmental hip dysplasia-treatment options in young patients].

The choice of the treatment method in young patients with osteoarthritis secondary to the developmental hip dyplasia is one of the most difficult dilemmas in orthopaedic practice. Currently total cementless hip replacement with metal-on-metal articulation is a routine procedure. Young patients are particularly exposed to the risk of aseptic loosening due to their high activity and long duration of life with implant.

[The hip joints of preterm neonates in sonographic evaluation].

The introduction of sonography to the evalution of the hip joint, allowed for the non-invasive examination in preterm neonates and thus assessment of the development their hip joints. MATERIAL AND METHODS. The examined group consisted of 143 preterm neonates with the body weight by delivery lower then 2000 grams (286 hip joints) and the control group of 31 children from term delveries forming the control group.

Neutrophils are active in total joint implant loosening.

Background: Polymorphonuclear neutrophils (PMN) are the first cells to take part in the local foreign body reaction in aseptic loosening of endoprostheses. The aim of this study was to evaluate the systemic host reaction to total joint replacement by measuring the production of nitric oxide by neutrophils before and after total joint replacement.

Patients And Method: Blood samples were collected from 33 patients (27 hips and 6 knees) before surgery, and 2 weeks, 2 months and 2.

[Monitoring of IL-6 levels in patients after total hip joint replacement].

Total hip replacement became a method of choice in treatment of the severe osteoarthritis. Despite the progress in constructing the implants and also the surgical technique, the number of complications rises together with the number of arthroplasties performed. The periprosthetic osteolysis and its consequence--the loosening is the one of the greatest problems of today's joint replacement.

[Radiological status of hip joints of children at the beginning of walking, when treatment of congenital hip dysplasia and dislocation was begun in the first two weeks of life].

This paper describes the radiological status on the start of walking in 31 hip joints in 24 children, in which the treatment of the developmental dysplasia with dislocation of the hip began in the first 2 weeks. Before the beginning of the treatment, ultrasonographic assessment revealed type D in 22% hips, type III in 55% and type IV in 23%. The radiographic evaluation was based on 6 parameters, which values were compared to the normal ones for the age group.