Constantinos Chaniotakis

Dr. Constantinos Chaniotakis

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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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CCConstantinos Chaniotakis
Constantinos Chaniotakis
CKChristos Koutserimpas
Christos Koutserimpas
Andreas G. TsantesAndreas G. Tsantes
Andreas G. Tsantes
DPDimitrios V. Papadopoulos
Dimitrios V. Papadopoulos
CTChristothea-Alexandra Tsiridis
Christothea-Alexandra Tsiridis
AHAlexander Hadjipavlou
Alexander Hadjipavlou
Postoperative discitis (POD) accounts for 20% to 30% of all cases of pyogenic spondylodiscitis, while POD may be mis-or-under-diagnosed, due to the vague related symptomatology and the non-specific imaging findings. Most studies report infection rate of less than 1%, which increases with the addition of non-instrumented fusion to 2.4% to 6.2%. It remains controversial whether POD is caused by an aseptic or infectious process. Positive cultures are presented only in 42–73% of patients with Staphylococcus species being the most common invading organisms, while Staphylococcus aureus is isolated in almost 50% of cases. The onset of POD symptoms usually occurs at 2–4 weeks after an apparently uneventful operation. Back pain and muscle spasms are usually refractory to bed rest and analgesics. Magnetic Resonance Imaging (MRI) is the most sensitive and specific imaging diagnostic technique. Antimicrobial therapy depends on the results of tissue cultures, and along with bracing represents the mainstay of management. Surgical intervention is necessary in patients failing conservative treatment. For the majority of cases, extensive surgical debridement, antibiotic therapy, and orthosis immobilization are effective in eliminating the infection. According to this, we recommend an Algorithmic approach for the management of POD. Postoperative infections after spinal surgery pose a certain clinical challenge, and in most cases can be treated conservatively. Nevertheless, disability may be persistent, and surgery could be necessary. The purpose of this concise review is to describe the manifestation of post-discectomy infection, its pathogenesis and particularly a rational approach for its management.

7 August 2023 in Cureus
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CCConstantinos Chaniotakis
Constantinos Chaniotakis
ATAlexandros Tsioupros
Alexandros Tsioupros
KSKosmas Samartzidis
Kosmas Samartzidis
KAKalliopi Alpantaki
Kalliopi Alpantaki
ISIoannis M. Stavrakakis
Ioannis M. Stavrakakis
Pure dislocation of the ankle is an extremely rare injury accounting for only 0.065% of all ankle injuries and 0.46% of all ankle dislocations. The mechanism of the injury generally consists of high-energy trauma which is associated with a combination of plantar flexion and inversion or eversion of the foot. We present a case of a 22-year-old male patient who sustained a closed pure ankle dislocation after a fall from a small height. He was treated conservatively with closed reduction and circumferential cast immobilization for six weeks, followed by a functional rehabilitation program. The patient presented to the emergency department with an acutely painful and deformed right ankle after falling from a height of 1 m (stairs). Radiographs showed a posteromedial ankle dislocation without fracture. Urgent closed reduction of the dislocation was performed and a posterior below-knee back slab was applied to immobilize the ankle. Dorsalis pedis and posterior tibial arteries were intact. Check X-rays confirmed proper reduction of the ankle joint. Post reduction computed tomography (CT) scan did not show any associated fractures. Magnetic resonance imaging (MRI) revealed a multiligamentous ankle injury and a small osteochondral lesion of the anteromedial talar dome. The back slab was changed to a below-knee circular cast two weeks later, as soon as the soft tissue swelling subsided. The cast was removed at the six-week follow-up and physiotherapy was initiated in order to gain functional rehabilitation and improve the range of motion. At the final follow-up (12 months), the ankle range of motion (ROM) was the same as the pre-injury status and the patient was able to return to his work. Pure ankle dislocation is a rare injury. A satisfactory outcome can be expected, provided that the appropriate conservative treatment followed by a strict rehabilitation protocol is applied.

8 August 2024 in European Journal of Translational Myology
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SKStylianos Kapetanakis
Stylianos Kapetanakis
CCConstantinos Chaniotakis
Constantinos Chaniotakis
PZPeriklis Zavridis
Periklis Zavridis
PKPeriklis Kopsidas
Periklis Kopsidas
SASotirios Apostolakis
Sotirios Apostolakis
Nikolaos GkantsinikoudisNikolaos Gkantsinikoudis
Nikolaos Gkantsinikoudis
Aim of this study is to investigate the safety, efficacy and impact on Health-Related Quality of Life (HRQoL) of Vertebroplasty (VP) and Kyphoplasty (KP) in the management of Osteoporotic Vertebral Compression Fractures (OVCFs) in elderly individuals. VP and KP represent Minimally Invasive Vertebral Augmentation (MIVA) procedures that are increasingly implemented for surgical treatment of OVCFs in recent years. These interventions have been associated with minimal traumatization and intraoperative hemorrhage, considerable analgesic effect and rapid postoperative recovery. Seventy-seven (77) consecutive individuals with OVCFs were subjected to VP/KP and recruited in this prospectively designed non-randomized study. Clinical evaluation was performed preoperatively and postoperatively at particular chronic intervals at 1, 6 weeks and at 3, 6, 12 months and 2 years. Assessment was conducted via the standardized Visual Analogue Scale (VAS) and Short-Form 36 (SF-36) Medical Health Survey Questionnaire for pain and HRQoL, respectively. No perioperative complications were observed. All studied indices were demonstrated to present a statistically significant amelioration following overall analysis. Pain intensity measured by the VAS score was depicted to be significantly reduced during the first 3 months, but continuous improvement of all indices of SF-36 and VAS was demonstrated to reach a plateau at 6 months, featuring no further clinical improvement.VP and KP represent safe and efficient options for interventional treatment of OVCFs in elderly and oldest-old patients, improving self-reported symptoms of pain as well as overall HRQoL.

28 February 2025 in Asian Spine Journal
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SKStylianos Kapetanakis
Stylianos Kapetanakis
KGKrikor Gkoumousian
Krikor Gkoumousian
Nikolaos GkantsinikoudisNikolaos Gkantsinikoudis
Nikolaos Gkantsinikoudis
CCConstantinos Chaniotakis
Constantinos Chaniotakis
Study Design: The lumbosacral transitional vertebrae (LSTV) in patients with Bertolotti syndrome (BS) cause alterations in the biomechanics of the lumbosacral junction. These entities have been associated with secondary conditions, such as lumbar disc herniation (LDH).Purpose: To investigate the clinical outcomes of microdiscectomy in patients with symptomatic LDH and BS. Overview of Literature: There is limited data in the literature on the functional outcomes of patients with LSTV who undergo microdiscectomy.Methods: This study enrolled 308 patients diagnosed with LDH and concurrent LSTV. All patients underwent microdiscectomy. Clinical evaluation was performed preoperatively and at distinct follow-up intervals of 1, 3, 6, and 12 months, and 2 and 5 years postoperatively. Assessment included clinical examination and implementation of the well-established, patient-reported outcome measures Visual Analog Scale (VAS) and Short-Form 36 (SF-36) Medical Health Survey Questionnaire for Health-Related Quality of Life (HRQoL) analysis. Furthermore, the anatomical relationship between LSTV and LDH was also studied.Results: The SF-36 indices and VAS score were statistically significantly ameliorated within the follow-up period. Maximum improvement was noted at 3 months, with further minimal improvement after 6 months, and stabilization of indices until the end of followup. Castellvi type IB was the most frequent LSTV type. The adjacent level (L4–L5) just above the LSTV was the most affected with an incidence of 72.1%. In the subgroups of Castellvi type IA, IIA, and IIIA, the LDH side was ipsilateral with the LSTV in 38.3% of patients. In this study, all patients underwent microdiscectomy and demonstrated favorable clinical outcomes (functional recovery and pain relief) and notable amelioration of HRQoL.Conclusions: To the best of our knowledge, this is the first study to conduct a holistic assessment in an attempt to delineate the impact of LSTV presence on the postoperative HRQoL of these individuals.

16 June 2022 in Journal of Clinical Orthopaedics and Trauma
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ISIoannis Stavrakakis
Ioannis Stavrakakis
PSPanagiotis Sylignakis
Panagiotis Sylignakis
GMGeorge E. Magarakis
George E. Magarakis
ZNZisis Ntontis
Zisis Ntontis
CCConstantinos Chaniotakis
Constantinos Chaniotakis
AAAdamantios Alvanos
Adamantios Alvanos

21 December 2024 in Journal of Clinical Medicine
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Konstantinos ZampetakisKonstantinos Zampetakis
Konstantinos Zampetakis
ISIoannis Stavrakakis
Ioannis Stavrakakis
KAKalliopi Alpantaki
Kalliopi Alpantaki
GKGRIGORIOS KASTANIS
GRIGORIOS KASTANIS
IKIoannis Ktistakis
Ioannis Ktistakis
CCConstantinos Chaniotakis
Constantinos Chaniotakis
Background/Objectives: Acute isolated distal radioulnar joint (DRUJ) dislocations are rare and often misdiagnosed during initial evaluation due to subtle clinical presentation, low index of suspicion, and imaging barriers. Prompt diagnosis and treatment are critical to avoid chronic instability, limited wrist mobility, and osteoarthritis. This systematic review evaluates the functional outcomes of conservative and surgical treatment protocols for acute isolated DRUJ dislocations. Methods: A systematic search of PubMed, Scopus, and Mendeley databases (2000–2024) was conducted following PRISMA guidelines. Inclusion criteria involved adult patients with isolated DRUJ dislocations diagnosed and managed within one week of injury. Studies reporting on underage patients, associated fractures, delayed management, and open injuries were excluded. Data on demographics, injury mechanism, diagnostic methods, treatment protocols, and functional outcomes were extracted and analyzed. Results: In total, 22 cases across 20 studies were included. The majority (90.9%) were males, with a mean age of 37.9 years (range: 20–70 years). Falls and sports injuries were the major causes, with volar dislocations predominating (18/22). The misdiagnosis rate was equal to 18%. Most cases were treated conservatively with closed reduction and immobilization for an average of 4.9 weeks. Operative treatment was performed in 6 cases, mainly following failed closed reductions. Functional outcomes were generally favorable, although the same parameters were not consistently studied in all patients. Overall, 82% (14 of 17 patients) achieved a full range of motion; 88% (14 of 16 patients) reported no pain, and all assessed cases had stable DRUJs at follow-up. Conclusions: This review highlights the rarity and diagnostic challenges of this injury. The functional outcomes of both conservative and operative treatment are generally satisfactory. Conservative treatment should be the first-line approach, with surgery reserved for irreducible or unstable cases. Future research using standardized outcome measures is needed to provide guidance for clinicians.