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The ultrastructure of mandibular condylar and rib cartilage from mice carrying the spondylo-metaphyseal chondrodysplasia (smc) gene.

The ultrastructural appearance of cartilage from a new mutant spondylo-metaphyseal chondrodysplasia (smc) is described. The matrix is abnormally rich in collagen fibres which often form a sheath around the chondrocytes. Collagen balls - spherical inclusions of collagen fibres - are a unique and characteristic feature of the matrix, and the chondrocytes contain large amounts of lipid.

[Clinical evaluation of extramedullary osteosynthesis in multiple rib fractures in conjunction with severe mechanical trauma and accompanying shock].

Extramedullary osteosynthesis of ribs was performed in 18 patients with apparatus SPG-20 for multiple rib fractures. The early surgical treatment of patients with thoracic traumas resutled in a substantial improvement of the external respiration function, the volume of intrapulmonary shunt, alveolar-arterial oxygen gradient and respiratory index being considerably decreased. The use of a mechanical suture of the ribs as a component in the complex treatment of patients with a thoracic trauma is an efficient method in the struggle against posttraumatic respiratory insufficiency and shock.

[Thoracic epidural analgesic (TEA) or controlled ventilation in the treatment of patients with multiple rib fractures (author's transl)].

In the last seven years 283 trauma patients were treated for multiple rib fractures and/or flail chest. Primary management consisted of only morphine analgesia in 16 patients, TEA in 112 patients, and mechanical ventilation in 155 patients. The indication for mechanical ventilation was always associated injuries (cerebral contusion, para- and tetraplegia, aspiration, severe lung contusion) and not the instability of the thoracic cage.

Adult age estimation from the pubic symphysis and sternal rib: A combined Bayesian revision of the Hartnett methods.

Two of the most commonly used methods for adult age estimation in forensic anthropology utilize the pubic symphysis on the pubic bone and the sternal end of the fourth rib. Currently, there are no age estimation methods that combine visual assessments of the joints of both the pubic symphysis and sternal end of the fourth rib to produce a single statistically derived final age interval. To fill this gap, pubic symphysis and rib scores were modeled separately and together via univariate and bivariate cumulative probit, respectively, with age and sex as predictors, using a sample of pubic bones

Surgical Repair of Morgagni Hernia With Liver Herniation and Rib Fractures in an Adult Following Rhinovirus-induced Coughing.

Morgagni hernias (MH) are rare congenital diaphragmatic defects that often remain undiagnosed until adulthood due to their subtle or nonspec … right hepatic lobe, gallbladder, and omentum, alongside displaced fractures of the eighth and ninth ribs and disruption of the intercostal musculature. Surgical repair was performed via a right video-assisted thoracoscopic surgery (VATS)-assisted thoracotomy. Operative findings included a 15 × 10 cm diaphragmatic defect anterior to the caval hiatus, he …

An Overview of Meta-Analyses on the Surgical Stabilization of Rib Fractures in Adults: A Narrative Umbrella Review (2020-2025).

Background: Rib fractures are a common cause of morbidity in trauma patients. The surgical stabilization of rib fractures (SSRF) has gained increasing attention as a therapeutic option; however, evidence from multiple meta-analyses remains heterogeneous. Methods: We performed an overview of 11 meta-analyses, including a total of 1,117,849 adult patients (narrative umbrella review), published between November 2020 and November 2025 to summarize and critically appraise high-level evidence comparing SSRF with non-operative management (NOM) in adults with traumatic rib fractures. PubMed (MEDLINE)

Experimental and Numerical Investigation on Fe-SMA Strengthening of U-Rib Butt-Welded Joints with Porosity Defects.

To investigate the influence of porosity defects and the strengthening effect of bonded iron-based shape memory alloy (Fe-SMA) plates, fatigue tests were conducted on defect-free, porosity-containing, and Fe-SMA-strengthened U-rib butt-welded specimens. A numerical model considering porosity defects and the bonded Fe-SMA plate was also established and validated against the experimental results. The results show that porosity defects significantly increased the local stress level near the crack. Under a load of 60 kN, the stress at the section 2 mm from the crack edge increased from 98 MPa to 1

Resection of the entire first rib for a malignant tumor via the transclavicular approach: a case report and literature review.

BACKGROUND: Malignant tumors of the first rib are extremely rare. Resection of the entire first rib is surgically challenging and requires an ingenious approach due to the complex anatomical characteristics. Currently, there is no standardized surgical approach. We herein report a case requiring resection of the entire first rib for a malignant tumor via the transclavicular approach and review relevant literature. CASE PRESENTATION: A 43-year-old Chinese male suffered from right-sided neck and back pain for 1 month. Imaging studies (chest computed tomography, magnetic resonance imaging, and p

First Rib Stress Fracture Masquerading as Periscapular Muscle Strain in a 10-Year-Old Softball Player.

INTRODUCTION: First rib stress fractures are uncommon but should be considered in overhead and batting athletes who present with posterior shoulder or periscapular pain. Diagnosis may be delayed because symptoms often resemble periscapular muscle strain, and routine shoulder radiographs may not adequately show the first rib. CASE REPORT: A 10-year-old female softball and basketball player presented with acute right posterior shoulder pain after feeling a "pop" during a batting session. She had recently added upper body conditioning, including ring pull-ups and push-ups, to her training routin

Rib-Origin Ewing Sarcoma With Cranial Nerve Involvement From Orbital Metastasis: A Rare Case Report.

Ewing sarcoma (ES) is an aggressive tumor of the bone in young adults, commonly originating from the pelvis and long bones. It is characterized by chromosomal translocation t(11;22) (q24;q12), resulting in the EWSR1-FLI1 fusion gene. It presents with metastasis commonly to the lungs and other soft tissues. While the metastasis to lungs is common, orbital involvement with cranial involvement is exceptionally rare. The case highlights the need for the early detection and aggressive treatment in order to reduce mortality in patients ES. A 23-year-old South-Asian male presented with a 2 month hist

Clinical features and pathological analysis of primary rib Langerhans cell histiocytosis: case series and literature review.

BackgroundLangerhans cell histiocytosis (LCH) is a rare histiocytic neoplasm characterized by the abnormal proliferation of Langerhans cells, which can infiltrate various tissues throughout the body, leading to a spectrum of organ damage. This study aims to explore the clinical characteristics, imaging manifestations, and pathological features of the disease to enhance clinical diagnosis and understanding of such conditions.Case descriptionThis study reviews the clinical data of four patients diagnosed with LCH at The First Affiliated Hospital of Hunan University of Traditional Chinese Medicin

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… the left fifth posterior rib, with a high likelihood of malignancy. … The lesion exhibits marked, uneven enhancement, with adjacent pleural thickening at the margins 2 | Right 7th anterior rib in the axillary region; right 6th and 7th posterior ribs | There is a feeling of distension and pain in the right chest and rib area, which intensifies with deep inhalation | The …

Guiding rib fracture care with the STUMBL score: acute pain management and intensive care unit referrals.

BACKGROUND: Rib fractures are common after blunt chest trauma and are associated with significant morbidity, mortality, and prolonged hospital stays due to pulmonary complications. Effective pain management is crucial in preventing these complications. The 'STUdy of the Management of BLunt chest wall trauma' (STUMBL) score can identify patients with rib fractures at risk of complications and assist with Emergency Department (ED) disposition decisions. Its role in guiding Acute Pain Service (APS) and Intensive Care Unit (ICU) referrals was previously unexplored. DESIGN AND OBJECTIVES: We condu

Radiographic Characterization of Rib Structural Deformity Following Surgical Patent Ductus Arteriosus Clipping in Preterm Infants.

BACKGROUND: The effect of patent ductus arteriosus (PDA) ligation through clipping on rib structural integrity in preterm infants is not yet … (control cohort). The structural modifications predominantly affected the left third through sixth ribs. Although no significant intergroup differences were observed in gestational age, birthweight, sex, antenatal corticosteroid administration, cumulative nonsteroidal anti-inflammatory drug (NSAID) doses, chronological age at surgery, operative durati …

Who Hits the Target? Erector Spinae Plane Block Versus Epidural Analgesia in Traumatic Rib Fractures.

INTRODUCTION: There is limited evidence comparing the comparative outcomes of the erector spinae plane (ESP) block versus thoracic epidural analgesia (EA). This study aims to compare analgesia-related outcomes between ESP block and EA including self-reported pain and opioid analgesic requirements. METHODS: This is a 5-y (2018-2022) retrospective analysis at an American College of Surgeons level I trauma center. Trauma patients aged ≥18 y with isolated rib fractures who received either ESP block or EA were included and compared. Primary outcomes were incentive spirometry (IS) volume change (po

Ectopic Rib Cartilage and an Undisclosed Silicone Implant: An Unexpected Discovery During Secondary Cleft Lip Revision.

This case report describes an unexpected intraoperative discovery during secondary revision surgery for residual unilateral cleft lip deformity in an 18-year-old female. Despite a consistent patient history of a prior "autologous costal cartilage rhinoplasty," surgical exploration revealed an undocumented silicone dorsal nasal implant and ectopic costal cartilage within the alveolar cleft defect, the first known report of such concomitant findings. The ectopic cartilage, representing a biologically unsound approach to alveolar reconstruction, was excised entirely to establish a viable bony rec

Low bone mineral density increases the risk of multiple rib and sternal fractures during cardiopulmonary resuscitation.

BACKGROUND: The correlation between low bone mineral density (BMD) and an increased risk of skeletal fractures is well-established. Rib and sternal fractures are common following cardiopulmonary resuscitation (CPR). However, it is unclear to what extent BMD corelates to the risk of rib and sternal fractures following CPR. AIM: The study aims to identify how BMD and different CPR modalities for chest compression (CC) (bystander, professionals, mechanical) are risk factors for rib and sternal fractures in a forensic autopsy population. MATERIALS AND METHODS: Postmortem computed tomography (PMC