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Osteomyelitis of the Jaw in COVID-19 Patients: A Rare Condition With a High Risk for Severe Complications.

Osteomyelitis of the jaw is an uncommon infection that arises from the flora of the oral cavity or sinuses and affects immunocompromised and polymorbid patients. Treatment includes surgical debridement and long regiments of broad-spectrum antibiotics. We present three cases of complicated jaw osteomyelitis presented with concurrent COVID-19 infection, including only two reported cases of odontogenic COVID-related osteomyelitis. The two mandibular cases were patients in their 30s with no comorbidities. The first case was an asymptomatic COVID-19-positive patient who developed an odontogenic inf

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… Osteomyelitis begins with inflammation of the cancellous bone. After the initial bacterial nidus establishes itself in the bone, leucocytes begin excreting inflammatory factors that cause increased blood flow in the acute phase of osteomyelitis ( 10 ). …

Added value of hybrid SPECT with CT imaging for predicting poor therapeutic efficacy of 89Sr in patients with bone metastasis.

To utilize single-photon emission computed tomography/computed tomography (SPECT/CT) scanning to investigate the usefulness of nerve root compression (NRC) and radioactive cold zone lesions (RCZLs) for predicting poor therapeutic efficacy of strontium-89 chloride (Sr-89) in patients with bone metastasis. Patients with bone metastatic neoplasms who had undergone baseline bone SPECT/CT scanning before Sr-89 therapy (148 MBq Sr-89 chloride by an intravenous injection for each patient) between July 2011 and July 2018 were included. Bone SPECT/CT images were assessed by two readers independently. A

Cancer in Lahore, Pakistan, 2010-2019: an incidence study.

ObjectivesTo study the cancer incidence rates over 10 years (2010-2019), in Lahore, Pakistan.DesignAn incidence study.SettingThe population-based Punjab Cancer Registry was established in 2005 in Lahore, which is the provincial metropolis of the province of Punjab (five rivers), and is located in the northeast region of Pakistan. The coordinating office of the Registry is located within Shaukat Khanum Memorial Cancer Hospital and Research Center. Both the active and passive forms of data collection are used.ParticipantsResidents of the district of Lahore diagnosed with cancer. The average annu

Case Report: Surgical treatment of stage 3 medication-related osteonecrosis of the maxilla using the "FTT Split" surgical protocol: a report of 14 cases.

Most severe presentation of medication-related osteonecrosis of the jaw (MRONJ) is classified as stage 3 for which there are still no standard surgical therapy guideline. Our aim was to describe "Five Times Three (FTT) Split" protocol as surgical treatment of stage 3 maxillary MRONJ. The present case series included a total of 14 patients diagnosed with stage 3 MRONJ of the upper jaw who were treated from February 2022 to September 2024 with mucoperiosteal flap and "FTT Split" protocol. The patients were followed up both clinically and radiologically for a period ranging from 9 months to 3 yea

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… Maxilla is less frequently affected with MRONJ than the mandible, as the maxillary cancellous bone has better vascularization compared to the dense, compact bone of the mandible ( 4 ). …

Final analysis of carfilzomib, dexamethasone, and daratumumab vs carfilzomib and dexamethasone in the CANDOR study.

CANDOR (NCT03158688) is a phase 3, randomized, open-label trial comparing carfilzomib, daratumumab, and dexamethasone (KdD) vs carfilzomib and dexamethasone (Kd) in adults with relapsed/refectory multiple myeloma (RRMM) with 1 to 3 prior therapies. The CANDOR study met its primary end point of progression-free survival (PFS) in the primary analysis. Here, we report the final analysis of the study, including secondary end points and subgroup analyses thereof. The median follow-up was 50 months. Patients treated with KdD had higher minimal residual disease-negative (MRD-) achievement rates (28%

Caspase-Dependent HMGB1 Release from Macrophages Participates in Peripheral Neuropathy Caused by Bortezomib, a Proteasome-Inhibiting Chemotherapeutic Agent, in Mice.

Given the role of macrophage-derived high mobility group box 1 (HMGB1) in chemotherapy-induced peripheral neuropathy (CIPN) caused by paclitaxel, we analyzed the role of HMGB1 and macrophages in the CIPN caused by bortezomib, a proteasome-inhibiting chemotherapeutic agent used for the treatment of multiple myeloma. Repeated administration of bortezomib caused CIPN accompanied by early-stage macrophage accumulation in the dorsal root ganglion. This CIPN was prevented by an anti-HMGB1-neutralizing antibody, thrombomodulin alfa capable of accelerating thrombin-dependent degradation of HMGB1, anta

Percutaneous balloon kyphoplasty for the treatment of vertebral compression fractures.

BackgroundVertebral compression fractures (VCFs) constitute a major health care problem, not only because of their high incidence but also because of their direct and indirect negative impacts on both patients' health-related quality of life and costs to the health care system. Two minimally invasive surgical approaches were developed for the management of symptomatic VCFs: balloon kyphoplasty and vertebroplasty. The purpose of this study was to evaluate the effectiveness and safety of balloon kyphoplasty in the treatment of symptomatic VCFs.MethodsBetween July 2011 and June 2012, one hundred

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… In balloon kyphoplasty, injection of PMMA follows insertion of a tamp (balloon) into the vertebral body, using either a transpedicular or extrapedicular route, in order to compress the cancellous bone, create a cavity, and if possible, realign the endplate of the vertebral body. …

Posterior vertebral column resection: Exploring practical uses in clinical settings.

BACKGROUND: The purpose of this study was to present our experience in patients who had been treated with posterior vertebral column resection (PVCR) for various spinal deformities. METHODS: Thirty-seven patients who performed PVCR between 2015 and 2018 were evaluated retrospectively. The mean follow-up period was 24 months (range: 12-50 months). The demographic data of the patients, mean blood loss, amount of blood replacement, duration of operation, intensive care and hospitalization period, PVCR level, instrumentation level, amount of preoperative curvature, amount of postoperative curvatu

Hemato-Oncology Care During and After the COVID-19 Pandemic: Changes in Treatment Pathways, Patient Flow, and Durable Organizational Adaptations.

The COVID-19 pandemic disrupted cancer care at every level of the clinical pathway, but its effect on hemato-oncology was distinctive because patients with hematologic malignancies often require urgent diagnosis, frequent hospital visits, transfusion support, intensive therapy, transplantation, cellular therapy, and infection-sensitive follow-up. This narrative review examines the pandemic as a disruption of hemato-oncology care delivery rather than only as a source of excess infection-related morbidity. It synthesizes evidence on diagnostic access, patient flow, treatment prioritization, infe

Balloon-assisted sacroplasty as a successful procedure for osteoporotic sacral insufficiency fractures after failure of the conservative treatment.

Osteoporotic vertebral fractures without prior adequate traumatization are frequent diagnosed in orthopedics because of the increasing life expectancy and incidence of osteoporosis. The associated high mortality is caused by reduced mobilization which leads to a higher risk of infection and a bedridden state. On the other hand the diagnosis of sacral insufficiency fractures is often prolonged because of unspecific symptoms while being associated with similar risks. This article presents an overview of the present scientific literature and a retrospective analysis of patients treated via balloo

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… Osteoporosis is the main risk factor because the sacrum consists mainly of cancellous bone which is reduced and altered in patients with reduced bone quality 2 . Therefore, patients are typically 60–70 years old and of the female gender 5 , 12 . …

Significance of Thoracic Vertebral Bone Marrow CT Value Detection in the Diagnosis of Senile Osteoporosis and Assessment of Companion Thoracic Vertebral Fracture Risk.

OBJECTIVE: This study investigates the diagnostic significance of CT values of thoracic vertebral trabecular bone in diagnosing senile osteoporosis and assessing the risk of concomitant thoracic vertebral fractures. METHODS: A retrospective analysis was conducted on 124 elderly patients diagnosed with osteoporosis (osteoporosis group), 30 patients with osteopenia (osteopenia group), and 30 individuals with normal bone mineral density (normal group) at our hospital. All participants underwent low-dose chest CT and dual-energy bone densitometry. The osteoporosis group was further divided into a

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… Ltd., Hangzhou, China) provided tools for measuring the cancellous bone CT values of thoracic vertebrae T4, T6, and T12 (if fractures were present, measurements were taken 1-2 vertebrae above or below). …

Disappearance of femoral head shortly after femoral neck fracture: a case report and literature review.

This case report describes a woman in her 70s who presented with a 3-month history of hip pain and inability to walk. Upon admission, she was diagnosed with the extremely rare condition of complete femoral head disappearance. A comprehensive examination was conducted to determine the cause and devise an effective treatment strategy, taking the patient's medical history into account. Through interdisciplinary discussions, occult infection and other potential causes were ruled out. The femoral head disappearance was ultimately determined to be due to wear, ischemia, and absorption following a fr

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… Degenerations in global morphometry of cancellous bone in rheumatoid arthritis, osteoarthritis and osteoporosis of femoral heads are similar but more severe than in ageing controls . Calcif Tissue Int 2022 ; 110 : 57 – 64 . 34244838 10.1007/s00223-021-00889-2 5 Learmonth ID Young C Rorabeck C. …

Management of Patients With Hematologic Malignancies During the COVID-19 Pandemic: Practical Considerations and Lessons to Be Learned.

The COVID-19 pandemic has created unprecedented hurdles to the delivery of care to patients with cancer. Patients with hematologic malignancies appear to have a greater risk of SARS-CoV-2 infection and severe disease due to myelosuppression and lymphopenia. The first challenge, therefore, is how to continue to deliver effective, curative therapy to vulnerable patients and at the same time avoid exposing them, and their health care teams (HCT), to SARS-CoV-2. An additional challenge is the timely completion of the diagnostic and staging studies required to formulate appropriate treatment plans.

Zoledronic Acid may reduce intraoperative bleeding in spinal tumors: a prospective cohort study.

Between June 2010 and June 2011, 176 patients were divided into 2 groups: a group with spinal metastasis of solid tumors (n = 157) and a group with multiple myeloma (n = 19). Both groups were further divided into 2 subgroups: a group receiving zoledronic acid before surgery and a control group. The zoledronic acid subgroup of the solid tumors group was group A (n = 81), the control subgroup of the solid tumors group was group B (n = 76), the zoledronic acid subgroup of the multiple myeloma group was group C (n = 10), and the control subgroup of the multiple myeloma group was group D (n = 9). T

CT-based finite element simulating spatial bone damage accumulation predicts metastatic human vertebrae strength and stiffness.

Introduction: Pathologic vertebral fractures are devastating for patients with spinal metastases. However, the mechanical process underlying these fractures is poorly understood, limiting physician's ability to predict which vertebral bodies will fail. Method: Here, we show the development of a damage-based finite element framework producing highly reliable pathologic vertebral strength and stiffness predictions from X-Ray computed tomography (CT) data. We evaluated the performance of specimen-specific material calibration vs. global material calibration across osteosclerotic, osteolytic, and

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… Accuracy of cancellous bone volume fraction measured by micro-CT scanning . J. Biomechanics 32 ( 3 ), 323 – 326 . 10.1016/s0021-9290(98)00176-6 10093033 Espinosa B. O. U. Quijada J. G. P. Kurkina E. Lukyanov O. ( 2023 ). Surrogate aerodynamic wing modeling based on a multilayer perceptron . … Bone volume fraction explains the variation in strength and stiffness of cancellous bone affected by metastatic cancer and osteoporosis . Calcif. Tissue Int. 83 ( 6 ), 368 – 379 . 10.1007/s00223-008-9174-x 18946628 Newell N. Rivera Tapia D. Rahman T. Lim S. O'Connell G. D. Holsgrove T. …

Dasatinib as a bone-modifying agent: anabolic and anti-resorptive effects.

BACKGROUND: Bone loss, in malignant or non-malignant diseases, is caused by increased osteoclast resorption and/or reduced osteoblast bone formation, and is commonly associated with skeletal complications. Thus, there is a need to identify new agents capable of influencing bone remodeling. We aimed to further pre-clinically evaluate the effects of dasatinib (BMS-354825), a multitargeted tyrosine kinase inhibitor, on osteoblast and osteoclast differentiation and function. METHODS: For studies on osteoblasts, primary human bone marrow mensenchymal stem cells (hMSCs) together with the hMSC-TERT

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… As observed in Figure 4D , dasatinib treatment led to a marked increase in trabecular microarchitecture of cancellous bone in a dose- and time-dependent manner. … Our data showed that both doses of dasatinib were associated with significant increases of trabecular architecture parameters (as calculated from micro-CT analyses) and a higher number of trabeculae on histologic sections of cancellous bone in distal femurs. …

Non-cryopreserved Autologous Peripheral Blood Stem Cell Transplantation for Lymphoma in a Resource-Limited Setting: Feasibility, Engraftment Kinetics, and Early Outcomes From Kashmir, India.

Background  Autologous stem cell transplantation (ASCT) is a standard consolidation strategy for selected patients with relapsed or high-risk lymphoma, but access remains limited in many low- and middle-income regions because of the cost and infrastructure required for stem cell cryopreservation. Non-cryopreserved ASCT using fresh peripheral blood stem cells stored at 4°C may provide a practical alternative. Methods  We retrospectively analyzed 11 consecutive patients with lymphoma who underwent non-cryopreserved ASCT at the Department of Medical Oncology, Sher-i-Kashmir Institute of Medical S

Efficacy and safety of C-arm computed tomography-guided microwave ablation with percutaneous osteoplasty for flat bone metastases.

BACKGROUND: Flat bone metastases are common in patients with advanced cancers, often resulting in severe pain, limited mobility, and reduced quality of life (QOL). Traditional treatment options, such as radiotherapy or systemic therapies, often fail to provide sufficient pain relief or improve functional outcomes in these patients. Microwave ablation (MWA) offers advantages, such as shorter procedure times and larger ablation zones, while percutaneous osteoplasty (PO) enhances bone stability and prevents pathological fractures. Despite these benefits, the combination of these techniques for tr

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… Flat bones primarily consist of cancellous bone with a thin cortical bone and poor mechanical strength. They are frequently associated with osteolysis and osteoporosis, which increases the difficulty of needle stabilization during puncture. …

Proceedings of the RAMI Intern Section Meeting.

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A systematic review of microsurgical reconstruction of the jaws using vascularized fibula flap technique in patients with bisphosphonate-related osteonecrosis.

ObjectiveThe aim of this systematic review was to assess the role of microsurgical reconstruction of the jaws in patients with bisphosphonate-related osteonecrosis, and biological complications after an observation period of at least 12 months.Material and methodsAn electronic MEDLINE search supplemented by manual searching was conducted to identify studies reporting data of at least 12 months observation on the microsurgical reconstruction of the jaws in patients with bisphosphonate-related osteonecrosis.ResultsFour studies resulted eligible for the analysis yielded. Three out of five studies