Dimitrios Koulalis

University General Hospital Attikon

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Dimitrios Mastrokalos

Heidelberg University

Andreas F. Mavrogenis

National and Kapodistrian University of Athens

Spyridon Sioutis

National and Kapodistrian University of Athens

Andrew D. Pearle

Hospital for Special Surgery

Daniel Kendoff

Helios Hospital Berlin-Buch

Panayiotis J. Papagelopoulos

National and Kapodistrian University of Athens

Paolo Di Benedetto

University of Udine

W. Schultz

The University of Texas at Austin

Padhraig F. O’Loughlin

Cork University Hospital

Mustafa Citak

Helios Endo-Klinik Hamburg

Cooperative Institutions

National and Kapodistrian University of Athens

University General Hospital Attikon

RELX Group (United States)

Athens Medical Center

Laiko General Hospital of Athens

General Hospital of Attica

Athens State University

University of Ioannina

Hospital for Special Surgery

Université Libre de Bruxelles

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Blunt Traumatic Vertebral Artery Injury After Cervical Fracture Dislocation: A Systematic Review of the Literature

Cureus (2024)

Konstantinos Zygogiannis Ioannis S. Benetos Dimitrios Stergios Evangelopoulos Dimitrios Koulalis Spyros G. Pneumaticos

Certain high-energy blunt forces may produce unstable cervical fractures with or without dislocation. In rare cases where the superior facets are dislocated, however showing a significant increase within the last decade, these types of injuries may include vertebral artery entrapment at the involvement level leading to artery dissection or occlusion. This phenomenon is usually seen at the C4-C5 and C5-C6 levels of injury. A systematic review of the literature was performed by examining online databases such as PubMed - NCBI, Web of Science, Cochrane Library, Scopus, and Embase to identify relevant scientific articles. Keywords (MeSH terms) used in the search included cervical spine injuries, cervical spine dislocation, cerebrovascular injury, vertebral artery injury, vertebral artery injury management, and incidence of vertebral artery injury. Initially, 1516 studies were identified as a primary search for screening. After excluding papers that did not fulfill the inclusion criteria, 34 studies were included in this review. Vertebral artery injury consists of a severe complication that could compromise a surgical intervention since the patient's clinical image may be unrevealing at first. Early diagnosis and correct timing constitute the golden standard for adequate treatment. This systematic review aims to summarize the current evidence for the diagnosis, management, and treatment of blunt traumatic vertebral artery injuries.

Blunt trauma

Cervical Artery

10.7759/cureus.65250

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Open wedge valgus tibial osteotomies: affecting the distinct ACL bundles

Knee Surgery Sports Traumatology Arthroscopy (2010)

Daniel Kendoff Dimitrios Koulalis Mustafa Citak James E. Voos Andrew D. Pearle

High tibial osteotomy

10.1007/s00167-010-1073-9

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Citations (13)

360o Fusion of the Lumbar Spine Using Flarehawk 9 : A Retrospective Study of 58 Patients Demonstrating Imagistic and Clinical Outcomes with One Year Follow-up

Konstantinos Zygogiannis Ioannis Chatzikomninos Savvas Moschos Ioannis Palavos Dimitrios Koulalis

Background/Objectives:The first attempts of posterior lumbar interbody fusion can be traced back to the 1940s, where their performance was marked by animosity due to high rates of failure. Nowadays, the use of interbody fusion involves a much more complicated consideration of factors such as global alignment, disc height, fusion rates, and operative risk, all combined at once.Our study aims to examine all these effects using Flarehawk 9 as a means of interbody fusion.Materials and methods: A total of 58 patients underwent open posterior lumbar surgery using Flarehawk 9 between September 2021 and February 2023 with a mean follow up of 1 year.The mean age was 59.8 years old ( range between 33 and 79 years old), 36 of them are males while 22 of them are females. The diagnostic groups included spinal canal stenosis (n=40), failed back surgery syndrome-revision surgery (n=5),spondylolisthesis with slip percentage 25% (n=4),recurrent herniated disc (n=7) and adjacent segment disease (n=2). Results: The majority of patients demonstrated remarkable improvement based on ODI scores.The rate of union varied based on the fused levels and whether the patients had previous surgery or not.The amount of lordosis postoperatively is increased by 2±0.4 degrees.Conclusions: Even though anterior approaches become more and more popular and advanced nowadays, posterior fusion with interbody cage still remains a safe and effective method to treat various spine surgical pathologies with optimal results.

10.20944/preprints202403.1505.v1

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Citations (1)

563 AUTOLOGOUS OSTEOCHONDRAL TRANSPLANTATION OF THE KNEE JOINT ASSISTED BY COMPUTER NAVIGATION. CADAVERIC STUDY

Osteoarthritis and Cartilage (2008)

Dimitrios Koulalis Paolo Di Benedetto Musa Citak Andrew D. Pearle Daniel Kendoff

Cadaveric spasm

Autologous chondrocyte implantation

10.1016/s1063-4584(08)60602-0

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comparison of postoperative gait parameters after total ankle arthroplasty and ankle fusion: A systematic review

Medicine (2024)

Konstantinos Zygogiannis Georgios C Thivaios Anna Kouramba Androniki Drakou Konstantinos Vlasis

Ankle pathology, such as severe arthritis, often necessitates surgical intervention to restore mobility and alleviate pain. Two commonly performed procedures for end-stage ankle disease are ankle fusion (AF) and total ankle arthroplasty (TAA). This review aims to compare the impact of AF and TAA on postoperative gait parameters. An extensive search in PubMed, Scopus, and Web of Science electronic databases was conducted with the use of the keywords (“ankle arthrodesis” OR “ankle fusion”) AND (“ankle replacement” OR “ankle arthroplasty”) AND “gait.” Clinical studies in terms of postoperative gait parameters were included in this review. At least one of the following gait parameters, included in gait analysis, should be researched: spatiotemporal variables and joint kinematics and kinetics. An initial search revealed 221 studies. After the removal of duplicates and screening of titles,10 studies (7 prospective and 3 retrospective case series) were included for qualitative analysis. In the majority of studies, there is no significant difference in spatiotemporal parameters, such as walking speed, cadence, stance duration, step length, and stride length among AF and TAA patients. Postoperative sagittal ankle ROM, mainly maximum ankle dorsiflexion angle is significantly higher in TAA patients, while results concerning hip and knee ROM are variable. The comparison of AF and TAA in terms of postoperative gait parameters has shown variable results. In the majority of studies, there is no significant difference in spatiotemporal and kinetic parameters among AF and TAA patients. Further high-quality prospective studies are needed to fully elucidate the comparison of postoperative gait parameters.

10.1097/md.0000000000038727

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110 EVALUATION OF TRANSTIBIAL AIMING OF THE FEMORAL TUNNEL IN ARTHROSCOPICAL ACL RECONSTRUCTION

Orthopaedic Proceedings (2011)

Konstantinos A. Starantzis A. Lendi P. Kondovazainitis Dimitrios Koulalis Dimitrios Mastrokalos

Evaluation of transtibial aiming of the femoral tunnel at its anatomical position in arthroscopical ACL reconstruction. 43 ACL reconstructions with hamstrings’ graft were studied. First, the femoral tunnel was drilled through the anteromedial portal at 09.30–10.00 (14.00–14.30 resp.) and then the tibial tunnel (av. anteroposterior angle: 63,5°, sagittal: 64,2°) at the same diameter with simoultaneous radiological documentation. Then, with a femoral aiming device, we tried to put a K-wire at the center of the drilled femoral tunnel. Fotographic documentation took place. In 20 cases the diameter of the tunnels was 7mm, in 11, 7,5mm, in 7, 8mm, in 3, 8,5mm and in 1, 9mm. Evaluation of all radiological and photographic material from 2 observers followed, according to the deviation of the transtibial K-wire from the center of the femoral tunnel. 38 ACL reconstructions were evaluated. It was shown that in 11 cases the transtibial K-wire was in the femoral tunnel (28,9%) (in 7 with a diameter of 7mm., in 2 with 7,5mm. and in 2 with 8mm.). The K-wire was in 23 cases (60,5%) at the perimeter or out of the femoral tunnel (in 11, with a diameter of 7mm., in 8 with 7,5mm., in 4 with 8mm., in 3 with 8,5mm. and in 1 with 9mm.). There was no correlation with the angles of the tibial tunnel or the age of the patients. Transtibial aiming of the femoral tunnel at its anatomical position is very difficult and there is no correlation of the transtibial deviation with the diameter of the tibial tunnel.

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Open Versus Arthroscopic Mosaicplasty of the Knee: A Cadaveric Assessment of Accuracy of Graft Placement Using Navigation

Arthroscopy The Journal of Arthroscopic and Related Surgery (2015)

Dimitrios Koulalis Nikolaos A. Stavropoulos Mustafa Citak Paolo Di Benedetto Padhraig F. O’Loughlin

Cadaveric spasm

Mean difference

Absolute deviation

10.1016/j.arthro.2015.03.016

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Citations (5)

Echinococcosis of the spine

EFORT Open Reviews (2021)

Spyridon Sioutis Lampros Reppas Achilles Bekos Eleftheria Soulioti Theodosis Saranteas

Echinococcosis or hydatid disease affecting the spine is an uncommon manifestation of

10.1302/2058-5241.6.200130

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Citations (33)

Treatment of Open Tibial Fractures with External Fixation and Secondary Intramedullary Nailing by Polytraumatized Patients

Osteosynthesis & Trauma Care (2004)

Dimitrios Koulalis G. Gouvas G. Koulalis

62 polytrauma patients with open tibial fractures were initially treated with primary external fixation followed by secondary intramedullary nailing with reaming. 28 open fractures were Gustilo Type I, 27 Type II and 7 Type III (3 III a, 3 III b,1 III c). The external fixator pin insertion sites were twice daily cleaned and disinfected. Average time between the application of the two methods was 5.2 days. The average time for initial callus appearance was 2.5 months. Superficial infection appeared in 7.1 % of Type I fractures and 7.4 % of Type II fractures. Deep infection appeared in 14.2 % of Type III fractures and non-union in 11.1 % of Type II fractures. In cases where immediate, minimally invasive stabilization is needed, secondary interlocking intramedullary nailing after initial treatment with external fixation is employed in polytrauma patients. This treatment regime provides rapid stabilization, mobilization and secures fracture healing in the treatment of open tibial fractures. It can be viewed as an alternative solution to unreamed interlocking intramedullary nailing when this is not possible.

Polytrauma

Open fracture

Delayed union

Tibial fracture

10.1055/s-2004-832298

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Hip Fractures in Patients with Dementia: An Emerging Orthopedic Concern

Journal of Long-Term Effects of Medical Implants (2023)

Spyridon Sioutis Alexandros Zikopoulos Vasileios Karampikas Evanthia Mitsiokapa Aikaterini Tsatsaragkou

Hip fractures are a very common injury in the elderly population associated with an increased mortality rate. Currently, more and more elderly patients are diagnosed with dementia. Demented patients are more prone to falls and hip fractures compared to the general population because of conditions related to their disease such as instability, osteoporosis, poor muscle control and weakness. The coexistence of dementia and hip fractures is a difficult situation for both the patients and the treating physicians because of postoperative complications in this frail subgroup of patients and their inability to stand up and walk. To enhance the literature, we reviewed published studies of hip fracture patients suffering from dementia to discuss why they have more frequent hip fractures, to review their associated in-hospital complications, and to emphasize on their postoperative management to be able to reach the pre-injury activity level and optimal quality of life.

Hip Fracture

Muscle weakness

10.1615/jlongtermeffmedimplants.2023046658

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