Galateia Katzouraki

Dr. Galateia Katzouraki

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 November 2022 in Children
Verified
Journal Article
Open access
PDF file
GKGalateia Katzouraki
Galateia Katzouraki
Elias VasiliadisElias Vasiliadis
Elias Vasiliadis
VMVasileios Marougklianis
Vasileios Marougklianis
EDEvangelopoulos Dimitrios-Stergios
Evangelopoulos Dimitrios-Stergios
SPSpyros G. Pneumaticos
Spyros G. Pneumaticos
The aim of this systematic review is to distinguish the clinical features of immunocompetent children with non-typhoid Salmonella spondylodiscitis and summarize the diagnosis, diagnostic tools, and treatment methods to guide clinicians. The review was conducted according to the preferred PRISMA guidelines. We conducted a literature search in the PubMed, Embase, and Cochrane Library databases. Article screening, data extraction, and study evaluation were performed by two independent reviewers. A total of 20 articles, published between 1977 and 2020, were selected, which included 21 patients with average age of 12.76 years (range, 2–18) without comorbidities; in total, 19% of the patients had positive blood cultures for non-typhoid Salmonella, and 80.9% underwent either CT-guided or open biopsy, which were positive for NTS. All infections were monomicrobial, and 11 different serotypes of non-typhoid Salmonella were identified. Analyzing the reviewed cases, 52.4% of the patients presented with fever, 90.5% had localized pain, and only 19% had gastroenteritis. The most common level of discitis was the lumbar region, especially the L4/L5 level. Primarily, third-generation cephalosporin was administered, and antibiotic treatment was given for an average of 9.6 weeks. Non-typhoid Salmonella spondylodiscitis is a rare clinical entity in healthy and immunocompetent children. The identification of the responsible organism is essential to guide antibiotic therapy and define the treatment duration. A significant limiting factor in this systematic review was the lack of published research articles and case series due to the rarity of the disease.

21 May 2025 in Medical Sciences
Verified
Journal Article
Open access
PDF file
Theodoros GrivasTheodoros Grivas
Theodoros Grivas
Elias VasiliadisElias Vasiliadis
Elias Vasiliadis
KSKonstantinos Soultanis
Konstantinos Soultanis
MLMarios Lykissas
Marios Lykissas
GKGalateia Katzouraki
Galateia Katzouraki
ETEvangelos Theodosopoulos
Evangelos Theodosopoulos
This report provides a concise selective representative overview of the predictor factors for progression in Idiopathic Scoliosis (IS). The Cobb angle method, rib hump deformity, imaging and advanced techniques for assessing skeletal maturity serve as key elements in evaluating prognostic factors for IS progression based on the patient’s age at diagnosis—particularly in Infantile Idiopathic Scoliosis (IIS), Juvenile Idiopathic Scoliosis (JIS), and Adolescent Idiopathic Scoliosis (AIS). The commonly used approaches for determining skeletal maturity include the assessment of the iliac apophysis and scoliosis curve deterioration, the Sanders skeletal maturity staging system, the distal radius and ulna (DRU) classification for predicting growth spurts and curve progression in IS, as well as the ossification of vertebral epiphyseal rings, the humeral head, and the calcaneal apophysis. Prognostic factors influencing IS progression are further discussed in relation to the patient’s age at onset—whether in infancy, childhood, or adolescence—as well as in both untreated and braced AIS patients. Additionally, the apical convex rib–vertebra angle in AIS is explored as an indicator of progression. Predictors for curve progression at skeletal maturity are outlined, along with various models for forecasting IS deterioration. Lastly, the Rib and Segmental Rib Index, a rib cage deformity parameter, is introduced as a predictor of scoliosis progression. In conclusion, this concise and selective overview of predictor factors for progression in IS highlights the current understanding of IS progression factors. It also introduces the Rib and Segmental Rib Index—a rib cage deformity parameter—as a predictor of IS progression.

10 March 2025 in Healthcare
Verified
Journal Article
Open access
PDF file
Theodoros GrivasTheodoros Grivas
Theodoros Grivas
Elias VasiliadisElias Vasiliadis
Elias Vasiliadis
CMChristina Mazioti
Christina Mazioti
AMAristea Mamzeri
Aristea Mamzeri
DPDespina Papagianni
Despina Papagianni
NSNick Sekouris
Nick Sekouris
Background/Objectives: This opinion paper provides a brief overview of the history of school scoliosis screening programs following the introduction. Methods: It outlines the international administrative policies of these programs, their impact on the frequency of surgical procedures, and the effects of discontinuing school-based scoliosis screenings. Results: The primary focus is on analyzing the role of “false positive” cases detected during the Adam’s bending test, which has contributed to the discontinuation of these programs in certain countries. This focused discussion is based on the impact of growth on the relationship between spinal and rib cage deformities. Furthermore, we propose the selection of the optimal age range for screening, considering the correlation between idiopathic scoliosis prevalence and geographical latitude. Conclusions: Lastly, we emphasize the importance of continuing scoliosis screening programs in schools.

Verified
Journal Article
Open access
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FPFotios Panagopoulos
Fotios Panagopoulos
Elias VasiliadisElias Vasiliadis
Elias Vasiliadis
GTGeorgios Tsalimas
Georgios Tsalimas
DMDIMITRA MELISSARIDOU
DIMITRA MELISSARIDOU
ILIoanna Lianou
Ioanna Lianou
SPSpiros G. Pneumaticos
Spiros G. Pneumaticos
Osteogenesis Imperfecta (OI) is a genetic disorder caused by mutations in genes responsible for collagen synthesis or polypeptides involved in the formation of collagen fibers. Its predominant skeletal complication is scoliosis, impacting 25 to 80% of OI patients. Vertebral deformities of the scoliotic curves in OI include a variety of malformations such as codfish, wedged-shaped vertebrae or platyspondyly, craniocervical junction abnormalities, and lumbosacral spondylolysis and spondylolisthesis. Although the precise pathophysiology of these spinal deformities remains unclear, anomalies in bone metabolism have been implicated in the progression of scoliotic curves. Bone Mineral Density (BMD) measurements have demonstrated a significant reduction in the Z-score, indicating osteoporosis and a correlation with the advancement of scoliosis. Factors such as increased mechanical strains, joint hypermobility, lower leg length discrepancy, pelvic obliquity, spinal ligament hypermobility, or vertebrae microfractures may also contribute to the severity of scoliosis. Histological vertebral analysis has confirmed that changes in trabecular microarchitecture, associated with inadequate bone turnover, indicate generalized bone metabolic defects in OI. At the molecular level, the upregulation of Transforming Growth factor-β (TGFβ) signaling in OI can lead to disturbed bone turnover and changes in muscle mass and strength. Understanding the relationship between spinal clinical features and molecular pathways could unveil TGFβ -related molecular targets, paving the way for novel therapeutic approaches in OI.

9 May 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
Theodoros GrivasTheodoros Grivas
Theodoros Grivas
Elias VasiliadisElias Vasiliadis
Elias Vasiliadis
KSKonstantinos Soultanis
Konstantinos Soultanis
MLMarios G Lykissas
Marios G Lykissas
GKGalateia Katzouraki
Galateia Katzouraki
ETEvangelos Theodosopoulos
Evangelos Theodosopoulos
This report provides a concise selective representative overview of the predictor-factors for progression in Idiopathic Scoliosis. The Cobb angle method, rib hump deformity, and imaging and advanced techniques for assessing skeletal maturity serve as key elements in evaluating prognostic factors for idiopathic scoliosis (IS) progression based on the patient's age at diagnosis—particularly in Infantile Idiopathic Scoliosis (IIS), Juvenile Idiopathic Scoliosis (JIS), and Adolescent Idiopathic Scoliosis (AIS). The commonly used approaches for determining skeletal maturity include the assessment of the iliac apophysis and scoliosis curve deterioration, the Sanders Skeletal Maturity Staging System, the distal radius and ulna (DRU) classification for predicting growth spurts and curve progression in IS, as well as the ossification of vertebral epiphyseal rings, the humeral head, and the calcaneal apophysis. Prognostic factors influencing IS progression are further discussed in relation to the patient’s age at onset—whether in infancy, childhood, or adolescence—as well as in both untreated and braced AIS patients. Additionally, the apical convex rib-vertebral angle in AIS is explored as an indicator of progression. Predictors for curve progression at skeletal maturity are outlined, along with various models for forecasting IS deterioration. Lastly, the Rib and Segmental Rib Index, a rib cage deformity parameter, is introduced as a predictor of scoliosis progression."

25 March 2024 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
GKGalateia Katzouraki
Galateia Katzouraki
Elias VasiliadisElias Vasiliadis
Elias Vasiliadis
AKAngelos Kaspiris
Angelos Kaspiris
DEDimitrios-Stergios Evangelopoulos
Dimitrios-Stergios Evangelopoulos
Theodoros GrivasTheodoros Grivas
Theodoros Grivas
SPSpiros Pneumaticos
Spiros Pneumaticos
Background: To review and evaluate multiple preoperative and postoperative sagittal parameters and their association with the risk of developing proximal junctional kyphosis (PJK) in patients with adolescent idiopathic scoliosis (AIS) who undergo correction surgery. Methods: A systematic search was performed in December 2022 in PubMed, Embase and the Cochrane Library to retrieve all the studies relevant to our research. After the study selection and data extraction following PRISMA guidelines, RevMan 5.3 was used for statistical analysis. All the analyzed factors were evaluated by using odds ratios and weighted mean differences with 95% confidence intervals. Moreover, the meta-analysis of proportions via MedCalc was used for analyzing quantitative data from the studies. Results: A total of 22 studies were included in our meta-analysis. All the available values of sagittal parameters were evaluated. Among all the potential risk factors, higher preoperative thoracic kyphosis (Test for overall effect Z = 11.79, p < 0.00001), higher preoperative sagittal vertical axis (SVA) (test for overall effect Z = 11.19, p < 0.00001), greater thoracic kyphosis change post-op. compared to pre-op. (test for overall effect Z = 6.02, p < 0.00001), increased postoperative lumbar lordosis (test for overall effect Z = 3.65, p = 0.0003), higher post-op. SVA (test for overall effect Z = 24.93, p < 0.00001) and a larger pelvic incidence/lumbar lordosis (PI/LL) mismatch (test for overall effect Z = 20.50, p < 0.00001) were found to be the risk factors for PJK after AIS surgery. Moreover, a decreased rod contour angle (RCA) (test for overall effect Z = 3.79, p < 0.0002) and higher proximal junctional angle–rod contour angle (PJA-RCA) (test for overall effect Z = 39.18, p < 0.00001) play a significant role in the risk of developing PJK after AIS correction. Conclusions: Sagittal balance is of great importance when considering the surgical correction of AIS. Many factors in our meta-analysis were found to increase the incidence for PJK such as higher preoperative thoracic kyphosis and pre-op. SVA. Furthermore, increased thoracic kyphosis change, increased post-operative lumbar lordosis, SVA and PI/LL mismatch are also factors that influence the possibility of post-op. PJK. Lastly, RCA and PJA-RCA are two important factors that need attention during AIS, as over-contouring of the rod could lead to PJK in AIS patients.