Bogdan Cretu

Dr. Bogdan Cretu

University Emergency Hospital from Bucharest, Bucharest, Bucureşti, Romania
orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

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

Representative Publications

View All Publications
1 March 2022 in EFORT Open Reviews
Verified
Journal Article
Open access
PDF file
CCCatalin Cirstoiu
Catalin Cirstoiu
BCBogdan Cretu
Bogdan Cretu
SISergiu Iordache
Sergiu Iordache
MPMihnea Popa
Mihnea Popa
BSBogdan Serban
Bogdan Serban
ACAdrian Cursaru
Adrian Cursaru
Bone metastases are difficult to treat surgically, necessitating a multidisciplinary approach that must be applied to each patient depending on the specifics of their case. The main indications for surgical treatment are a lack of response to chemotherapy, radiation therapy, hormone therapy, immunotherapy, and bisphosphonates which is defined by persistent pain or tumor progression; the risk of imminent pathological bone fracture; and surgical treatment for single bone metastases. An important aspect of choosing the right treatment for these patients is accurately estimating life expectancy. Improved chemotherapy, postoperative radiation therapy, and sustainable reconstructive modalities will increase the patient’s life expectancy. The surgeon should select the best surgical strategy based on the primary tumor and its characteristics, the presence of single or multiple metastases, age, anatomical location, and the functional resources of the patient. Preventive osteosynthesis, osteosynthesis to stabilize a fracture, resections, and reconstructions are the main surgical options for bone metastases. Resection and reconstruction with a modular prosthesis remain the generally approved surgical option to restore functionality, increase the quality of life, and increase life expectancy. Preoperative embolization is necessary, especially in the case of metastases of renal or thyroid origin. This procedure is extremely important to avoid complications, with a major impact on survival rates.

7 March 2020 in Materials
Verified
Journal Article
Open access
PDF file
MNMihai Nica
Mihai Nica
BCBogdan Cretu
Bogdan Cretu
DEDragos Ene
Dragos Ene
Antoniac IulianAntoniac Iulian
Antoniac Iulian
DGDaniela Gheorghita
Daniela Gheorghita
RERazvan Ene
Razvan Ene
Failure of osteosynthesis implants is an intricate matter with challenging management that calls for efficient investigation and prevention. Using implant retrieval analysis combined with standard radiological examination, we evaluated the main causes for osteosynthesis implant breakdown and the relations among them for a series of cases. Twenty-one patients diagnosed with implant failure were assessed for this work. For metallurgical analysis, microscopy techniques such as scanning electron microscopy (SEM), stereomicroscopy, and optical microscopy were employed. The results showed that material structural deficiencies (nine patients) and faulty surgical techniques (eight patients) were the main causes for failure. An important number of patients presented with material structural deficiencies superimposed on an imperfect osteosynthesis technique (six patients). Consequently, the importance of failure retrieval analysis should not be overlooked, and in combination with other investigational techniques, must provide information for both implant manufacturing and design improvement, as well as osteosynthesis technique optimization.

16 October 2022 in Medicina
Verified
Journal Article
Open access
PDF file
CLAUDIU-EDUARD NISTORCLAUDIU-EDUARD NISTOR
CLAUDIU-EDUARD NISTOR
CIUCHE ADRIANCIUCHE ADRIAN
CIUCHE ADRIAN
ACAnca-Pati Cucu
Anca-Pati Cucu
CNCornelia Nitipir
Cornelia Nitipir
COCristina Orlov-Slavu
Cristina Orlov-Slavu
CCCatalin Cirstoiu
Catalin Cirstoiu
Lung neoplasm is the main cause of cancer-related mortality, and bone metastasis is among the most common secondary tumors. The vast majority of patients also present with multiple bone metastases, which makes systemic and adjuvant pain therapy preferable to surgery. The optimal approach for a resectable non-small-cell lung tumor that also presents a unique, resectable bone metastasis is not fully established. The number of papers addressing this subject is small, and most are case reports; nevertheless, survival rates seem to increase with radical surgery. The sequencing of local versus systemic treatment should always be discussed within the multidisciplinary team that will choose the best approach for each patient. As targeted systemic therapies become more accessible, radical surgery, together with existing reconstructive methods, will lead to an increase in life expectancy and a better quality of life.

1 August 2023 in EFORT Open Reviews
Verified
Journal Article
Open access
PDF file
BSBogdan Serban
Bogdan Serban
BCBogdan Cretu
Bogdan Cretu
ACAdrian Cursaru
Adrian Cursaru
CNCornelia Nitipir
Cornelia Nitipir
COCristina Orlov-Slavu
Cristina Orlov-Slavu
CCCatalin Cirstoiu
Catalin Cirstoiu
Patients diagnosed with soft tissue sarcoma (STS) present a number of challenges for physicians, due to the vast array of subtypes and aggressive tumor biology. There is currently no agreed-upon management strategy for these tumors, which has led to the ongoing debate surrounding how frequently surveillance scans should be performed following surgery. However, advances in multidisciplinary care have improved patient outcomes over recent years. The early detection of local recurrence reflects a more aggressive tumor, even in association with the same histopathologic entity. Treating the local recurrence of extremity STS is a difficult clinical challenge. The goal should be to salvage limbs when possible, with treatments such as resection and irradiation, although amputation may be necessary in some cases. Regional therapies such as high-intensity, low-dose or interleukin-1 receptor antagonist treatment are appealing options for either definitive or adjuvant therapy, depending on the location of the disease’s recurrence. The higher survival rate following late recurrence may be explained by variations in tumor biology. Since long-term survival is, in fact, inferior in patients with high-grade STS, this necessitates the implementation of an active surveillance approach.

30 April 2023 in Medicina
Verified
Journal Article
Open access
PDF file
SISergiu Iordache
Sergiu Iordache
ACAdrian Cursaru
Adrian Cursaru
BSBogdan Serban
Bogdan Serban
MCMihai Costache
Mihai Costache
RSRazvan Dumitru Spiridonica
Razvan Dumitru Spiridonica
CCCatalin Cirstoiu
Catalin Cirstoiu
Background and Objectives: Melorheostosis, also referred to in the literature as Leri’s disease, is an unusual mesenchymal dysplasia with the clinical appearance of benign sclerosing bone dysplasia; it frequently occurs in late adolescence. Any bone in the skeletal system can be affected by this disease, though the long bones of the lower extremities are the most common, at any age. Melorheostosis has a chronic evolution, and symptoms are usually absent in the early stages. The etiopathogenesis is still unknown, however, numerous theories have been proposed that could explain the appearance of this lesion formation. An association with other benign or malignant bone lesions is also possible, and associations with osteosarcoma, malignant fibrous histiocytoma, or Buschke–Ollendorff syndrome have also been reported. There have also been reported cases of the malignant transformation of a pre-existing melorheostosis lesion into malignant fibrous histiocytoma or osteosarcoma. The diagnosis of melorheostosis can be made only based on radiological images, but, due to its polymorphism, additional imaging investigations are often necessary and sometimes only a biopsy can establish a definite diagnosis. Because there are currently no guidelines for treatment based on scientific evidence, due to the low number of cases diagnosed worldwide, our objective was to highlight the early recognition and specific surgical treatments for better prognosis and outcomes. Materials and Methods: We conducted a review of the literature consisting of original papers, case reports, and case series and presented the clinical and paraclinical characteristics of melorheostosis. We aimed to synthesize the treatment methods available in the literature as well as determine possible future directions related to the treatment of melorheostosis. Furthermore, we presented the results of a case of femoral melorheostosis admitted to the orthopedics department of the University Emergency Hospital of Bucharest in a 46-year-old female patient with severe pain in the left thigh and limitation of joint mobility. Following the clinical examination, the patient complained of pain in the middle third of the left thigh in the antero-medial compartment; the pain appeared spontaneously and was aggravated during physical activity. The pain started about two years prior, but the patient experienced complete pain relief after the administration of non-steroidal anti-inflammatory drugs. In the last six months, the patient presented an increase in pain intensity without significant improvement following the administration of non-steroidal anti-inflammatory drugs. The patient’s symptoms were mainly determined by the increase in the volume of the tumor and the mass effect on the adjacent tissues, especially on the vessels and the femoral nerve. The CT examination and bone scintigraphy showed a unique lesion in the middle third of the left femur and no oncological changes in the thoracic, abdominal, and pelvic regions; however, at the level of the femoral shaft, there was a localized cortical and pericortical bone lesion formation that surrounded approximately 180 degrees of the femoral shaft (anterior, medial, and lateral). It had a predominantly sclerotic structure but was associated with lytic areas with thickening of the bone cortex and areas of periosteal reaction. The next therapeutic gesture was to perform an incisional biopsy using a lateral approach at the level of the thigh. The histopathological result supported the diagnosis of melorheostosis. Additionally, immunohistochemical tests completed the data obtained after the microscopic examination through the classic histopathological technique The patient was discharged and included in a full medical recovery program for eight weeks in a specialized medical center, during which she also received analgesic treatment in maximum doses, but without improvement regarding her symptoms. Taking into account the chronic evolution of the pain, the complete lack of response to conservative treatment after eight weeks, and the lack of treatment guidelines in the case of melorheostosis, a surgical approach needed to be considered. The surgical option in this case, considering the circumferential location of the lesion at the level of the femoral diaphysis, was a radical resection. The surgical approach consisted of segmental resection to healthy bone tissue and reconstruction of the remaining defect with a modular tumoral prosthesis. At the 45-day postoperative control, the patient no longer complained of pain in the operated-on limb and was mobile with full support without gait difficulties. The follow-up period was one year, and the patient presented complete pain relief and a very good functional outcome. Results: In the case of asymptomatic patients, conservative treatment seems to be a good option with optimal results. However, for benign tumors, it remains unclear whether radical surgery is a viable option. Conclusions: Melorheostosis remains an incompletely understood disease, given the limited number of cases worldwide, and thus, there is a lack of clinical guidelines regarding specialized treatment.

8 July 2022 in Medicina
Verified
Journal Article
Open access
PDF file
CLAUDIU-EDUARD NISTORCLAUDIU-EDUARD NISTOR
CLAUDIU-EDUARD NISTOR
CIUCHE ADRIANCIUCHE ADRIAN
CIUCHE ADRIAN
ACAnca-Pati Cucu
Anca-Pati Cucu
BSBogdan Serban
Bogdan Serban
ACAdrian Cursaru
Adrian Cursaru
CCCatalin Cirstoiu
Catalin Cirstoiu
Nearly 1% of all bone cancers are primary clavicular tumors and because of their rarity, treating clinicians are unfamiliar with their diagnosis, classification, treatment options, and prognosis. In terms of preserving function and avoiding complications, clavicle reconstruction seems logical; however, further studies are needed to support this measure. Reconstruction techniques are difficult taking into account the anatomical structures surrounding the clavicle. When chest wall defects are present, a multidisciplinary team, including an orthopedist and thoracic and plastic surgeons, is of paramount importance for optimal surgical management. Malignant clavicle tumors may include primary and secondary malignancies and neighboring tumors with clavicular invasion. Surgical resection of complex thoracic tumors invading the clavicles can result in larger defects, requiring chest wall reconstruction, which is a substantial challenge for surgeons. Correct diagnosis with proper preoperative planning is essential for limiting complications. Post-resection reconstruction of the partial or total claviculectomy is important for several reasons, including maintaining the biomechanics of the scapular girdle, protecting the vessels and nerves, reducing pain, and maintaining the anatomical appearance of the shoulder. The chest wall resection and reconstruction techniques can involve either partial or full chest wall thickness, influencing the choice of reconstructive technique and materials. In the present paper, we aimed to synthesize the anatomical and physiopathological aspects and the small number of therapeutic surgical options that are currently available for these patients.