A Clinical Case of Weak A Antigen on the Erythrocytes in a Person with Coexistent Anti-A Antibodies.

This study investigated a person with an AB0 discrepancy. Her blood group initially typed at the birth as AB Rh+ (positive); however, it was B Rh+ (positive) or Rh- (negative) when she was in her teens. At room temperature, her erythrocytes were agglutinated by anti-B, and the agglutination was significantly weaker at 37 ºC.

Expandable distal femur megaprosthesis: A European Musculoskeletal Oncology Society study on 299 cases.

Background And Objectives: Expandable distal femur prostheses have become more popular over the last decades, but scientific data is limited.

Methods: A retrospective study was performed, including cases treated between 1986 and 2019 in 15 European referral centers for bone sarcomas.

Results: A total of 299 cases were included.

influence of anesthesia type on intraocular pressure during spine surgery in prone position.

Objective: The aim was to examine intraocular pressure (IOP) during lumbar spine surgery in PP under general vs spinal anesthesia and to compare it with volunteers in PP.

Patients And Methods: Materials and methods: We performed randomized prospective single institutional trial. Patients were operated in PP with fixation of 1-2 spinal segments.

A Reconstructive Extensor Tendon Centralization Technique for Sagittal Band Disruption.

Sagittal band injuries may result in extensor digitorum communis (EDC) tendon instability and may require operative treatment for symptomatic loss of extension, pain, and snapping at the metacarpophalangeal joint (MCPJ). Operative methods vary according to the source of donor tissue, as well as the anchor point of attachment. We present a surgical technique that diminishes tension of the repair with MCPJ flexion.

Pathogenic Variants and Phenotype Characteristics in Ukrainian Osteogenesis Imperfecta Patients.

Osteogenesis imperfecta (OI) is a hereditary bone disorder caused by defects of type I collagen. Although up to 90% of patients harbor pathogenic variants in the gene, which codes for collagen α1/2 chains, the spectrum of OI genotypes may differ between populations, and there is academic controversy around OI genotype-phenotype correlations. In the current study, 94 Ukrainian OI families were interviewed.

CARDIOVASCULAR CHANGES IN HUMANBODY AFTER CHANGING POSITION SUPINE TO PRONE.

Prone position is known to be accompanied by several physiologic changes, but they are not described comprehensively in modern literature and sometimes controversial. Aim was to examine cardio-vascular changes in non-anesthetized humans after turning them into prone position and influence on these changes by age and body mass index. We performed an observational prospective study without control group of 200 (118 male and 82 female) patients 18-75 y.

IFITM5 pathogenic variant causes osteogenesis imperfecta V with various phenotype severity in Ukrainian and Vietnamese patients.

Background: Osteogenesis imperfecta (OI) covers a spectrum of bone fragility disorders. OI is classified into five types; however, the genetic causes of OI might hide in pathogenic variants of 20 different genes. Often clinical OI types mimic each other.

De novo and inherited pathogenic variants in collagen-related osteogenesis imperfecta.

Background: Osteogenesis imperfecta (OI) is a rare genetic bone fragility disorder. In the current study, differences between the genotypes and phenotypes of de novo and inherited collagen-related OI were investigated.

Methods: A comparative analysis was performed of the genotypes and phenotypes of 146 unrelated inherited and de novo collagen I OI cases from Estonia, Ukraine, and Vietnam.

Comparative analysis of osseointegration in various types of acetabular implant materials.

Background: There is a lack of comparative data on osseointegration (BIC) of acetabular cup surfaces in hip arthroplasty in both normal bone mineral density and in conditions of osteoporosis.

Aim: To compare osseointegration of acetabular implants with various types of surfaces in an animal model with normal and osteoporotic bone tissue.

Material And Methods: The study was performed on 60 rats.