First Rib Research Articles

Does the Rearing Management following by Charolais Cull Cows Influence the Qualities of Carcass and Beef Meat?

This study characterized, for the first time, the rearing managements (from birth to slaughter) applied throughout the cull cows’ life and observed the effect of these managements on the carcass and meat properties. From the individual data of 371 Charolais cull cows, three rearing managements were defined and characterized with 60 rearing factors. The results showed that the rearing managements had low effects on the carcass and meat properties. For the carcass traits, only the carcass weight, and fat and longissimus (LM) colors at the level of the sixth rib were impacted. Concerning the meat, only the red color intensity, the fat aroma, the flavor intensity and persistence were affected. According to our results, this study confirmed that it is possible to produce carcass or meat with similar properties; consequently, it is difficult to favor a rearing management. However, to manage jointly both carcass and meat qualities, trade-offs are needed.

Caudal pulmonary artery to vein ratio on radiography can predict pulmonary hypertension in dogs with mitral regurgitation.

Pulmonary hypertension (PH) is an important predictor of poor outcomes in dogs with mitral regurgitation (MR). The feasibility of radiography to predict PH in dogs with MR is unknown. This retrospective, observational, and analytic study aimed to identify a radiographic parameter to predict PH in dogs with MR. A total of 302 dogs diagnosed with MR on echocardiography were enrolled. Medical record and radiographic findings such as the size of the main pulmonary artery, left atrium, left ventricle, and right chamber, and cranial and caudal pulmonary arteries and veins were evaluated according to the presence of PH. The diameters of the cranial and caudal pulmonary vessels were compared to the fourth rib and the ninth rib, respectively, and the ratio of the pulmonary artery to the corresponding vein (CdPA/CdPV) was calculated. Pulmonary hypertension was diagnosed in 77 dogs (25.5%) and the prevalence of PH increased with MR grade. The CdPA/CdPV was significantly higher (P < 0.001) in the presence of PH. Multivariate analysis showed that the CdPA/CdPV was the only independent radiographic parameter that had a significant association with PH in dogs with MR (P = 0.028). The cut-off value of the CdPA/CdPV = 1.10 showed 90.6% specificity and 31.1% sensitivity for detecting PH in dogs with MR. In dogs with MR, PH can be predicted with high specificity when the caudal pulmonary artery is 1.1 times larger than the corresponding vein on radiographs.

Types of injuries caused by isolated electric scooter accidents.

The recent increase in electric scooter (e-scooter) use has been accompanied by an increase in injuries from e-scooter-related accidents. Studies have reported that most such injuries are minor, and physicians may therefore underestimate the severity of such injuries. This study investigated the types and severity of injuries caused by isolated e-scooter accidents (i.e., those that did not involve colliding with other cars or falling from heights). This prospective observational study was conducted from May to December 2021 at Dankook University Hospital tertiary medical center. The demographic data of patients injured in isolated e-scooter-related accidents were collected. All injuries were categorized by body part. Fifty eligible patients visited our emergency department during the study period. Of these, 76% were categorized as nonemergency, and 62% were discharged after initial evaluation and treatment at the emergency department. Another 10% were admitted to the intensive care unit (ICU) and 18% to the ward, with nine patients receiving at least one operation. The average hospital stays were 2.4 days in the ICU and 9 days in the ward. One death occurred due to traumatic brain injury (overall mortality rate, 2%). Multiple fractures of the left third through ninth ribs combined with lung laceration and fractures of T12 and L4 were noted. Various types and severities of injuries can occur in isolated e-scooter accidents. While most such injuries are minor, some will require ICU admission or surgery, and deaths can occur. Physicians should not underestimate the severity of such injuries.

Subdiaphragmatic High Renal Ectopia associated with Eventration of the Diaphragm: A Case Report

Subdiaphragmatic high renal ectopia and eventration of the diaphragm are unusual entities, and the combination of the two is extremely rare. We present a case of a young man with non-visualized left kidney in abdominal ultrasonography (USG). Static renal scan with 99mTc-DMSA showed an abnormally high, relatively smaller, and malrotated left kidney without any renal scarring. CT scan was also done to rule out possible associated abnormalities. It became evident that the left kidney was smaller and malrotated, lying posteriorly and much above the spleen and stomach as well, but immediately beneath the abnormally high left dome of the diaphragm at the level of the sixth rib. Apart from the abnormally high left dome, there were no other abnormalities seen in the diaphragm. The reported case of diaphragmatic eventration with high renal ectopia may be an important differential diagnosis of diaphragmatic rupture, a frequently encountered difficulty in clinical practice. Bangladesh J. Nuclear Med. 25(2): 151-153, 2022

Injuries caused by a free fall in an elevator shaft from the 5th floor: About a case

Elevator-related accidents are rare but can cause serious injury. In the United States, elevator and escalator accidents seriously injure nearly 17, 100 people and kill around 30 per year. No African study would have reported such an aetiology. This observation concerns a 38-year-old patient who allegedly free-falled into the shaft of an elevator from the 5th Floor with a reception on the roof of the cabin, which was blocked on the ground floor. Accident in the course of which she presented with polytrauma associated with a fracture of the right anterior arch of the seventh rib, two wounds in the gluteal region, a floating knee on the right and a fracture of the left tibial pilon. She was admitted to the operating room for trimming and osteosynthesis. The postoperative course was uncomplicated. The objective of this work was to present a type of accident little known in our context but of which it is necessary to have an idea of the changes in our construction style.

Stature estimation using the sternum in a Thai population.

Stature estimation is an important process of biological profile analysis for the identification of skeletal remains. In forensic practice, non-long bones might be needed for estimating stature, in case long bones were not recovered or well preserved. This study developed the stature estimation model from dry sterna in a Thai population. The combined length of manubrium and mesosternum (CMM) was the best single stature estimation indicator for males and combined sex samples, whereas the sternal area (SA) was the best stature estimation indicator for females in our study. The best multiple regression analysis models of our study were stature equal 122.685+0.182 (CMM)+0.592 (intercostal length between the third and fourth ribs [ICL34]) with a standard error of estimation (SEE) of 6.134 cm for males, stature equal 130.676+0.005 (SA) with SEE of 5.370 cm for females, and stature equal 79.412+0.342 (CMM)+0.506 (corpus sterni width at first sternebra [CSWS1])+0.794 (ICL34) with SEE of 6.222 cm for unknown sex samples. The results indicated that a sternum can be used for estimating the stature of skeletal remains in a Thai population. However, these models might not be suitable for other populations, especially, in case the suspected stature is over the stature range in our study.

Unilateral Seventh Rib Posterior Stress Fracture in a High School Baseball Pitcher

Posterior rib stress fractures may infrequently occur in baseball pitchers at the first or second rib. Lower thoracic rib stress fractures, however, are a rare phenomenon with only a few cases described at the collegiate or professional level.

Development of ribs and intercostal muscles in the chicken embryo.

In the thorax of higher vertebrates, ribs and intercostal muscles play a decisive role in stability and respiratory movements of the body wall. They are derivatives of the somites, the ribs originating in the sclerotome and the intercostal muscles originating in the myotome. During thorax development, ribs and intercostal muscles extend into the lateral plate mesoderm and eventually contact the sternum during ventral closure. Here, we give a detailed description of the morphogenesis of ribs and thoracic muscles in the chicken embryo (Gallus gallus). Using Alcian blue staining as well as Sox9 and Desmin whole‐mount immunohistochemistry, we monitor synchronously the development of rib cartilage and intercostal muscle anlagen. We show that the muscle anlagen precede the rib anlagen during ventrolateral extension, which is in line with the inductive role of the myotome in rib differentiation. Our studies furthermore reveal the temporary formation of a previously unknown eighth rib in the chicken embryonic thorax.

Adamantinoma like Ewing Family Tumor of the Eighth Rib, A Rare Case Report and Review of Literature

Ewing sarcoma is a rare malignant tumor of bone and soft tissue that occurs primarily in children and young adults. It belongs to the Ewing family of tumors that are characterized by uniform small blue.

Can the Introduction of Different Olive Cakes Affect the Carcass, Meat and Fat Quality of Bísaro Pork?

The present study aimed to evaluate the effect of the inclusion of different olive cakes in the diet of Bísaro pigs on the carcass, meat and fat. The carcasses of 40 animals fed a diet with five treatments (T1—Basic diet and commercial feed; T2—Basic diet + 10% crude olive cake; T3—Basic diet + 10% olive cake, two phases; T4—Basic diet + 10% exhausted olive cake; T5—Basic diet + 10% exhausted olive cake + 1% olive oil) were used to study the effect on carcass traits, physicochemical meat quality and lipid composition of meat and backfat. There were no significant differences between treatments for the conformation measurements performed, except for the length at the seventh and last rib (p < 0.05). The percentage of prime cuts of the carcass in Bísaro pig is within the values indicated by the Portuguese Standard 2931. No significant differences between treatments for body weight, pH and carcass weight were found. The values of ultimate pH (5.7), L* (51–52), b* (11–12) and SF (3.4–4.2) observed confirm a non-exudative and firm meat without quality deviations, such as DFD or PSE. Thus, as a general conclusion, the inclusion of different olive cakes in the diet of Bísaro pigs did not cause any negative consequences on the carcass characteristics and conformation as well as in the meat and lipidic quality. In addition, the inclusion of this olive industry by-product in the animal diet would be an important contribution to solving the problem of the great environmental impact from olive-mill wastewaters from the extractive industries.

Thoracic outlet compression neuropathy and decompression surgery at chang gung memorial hospital

Thoracic outlet syndrome (TOS) has many controversies that include nomenclature, etiology, diagnosis, treatment and surgical approach. The aim of this article is to give a comprehensive review of our experience of treatment of TOS for more than 35 years. From 1985 to 2021, a total of 100 TOS patients were treated and 114 surgeries were performed. They all had decompression surgeries for their compression neuropathy in the thoracic outlet with at least one year postoperative follow-up. Fourteen patients were bilateral TOS, undergoing bilateral TOS surgeries. Preoperative evaluation covered “TOS Examination Sheet” and imaging studies MRI and CT. Diagnosis was confirmed by intraoperative findings. All had near-total resection of the anterior scalene muscle and the first rib. Additional structual abnormalities were treated at the same time. The operative time was typically 2–3 h. Major postoperative complications were rare. Nearly all patients (96%) experienced significant symptoms and signs relief after a period of clinical follow-up and rehabilitation. TOS is a real clinical entity. Once the preoperative diagnosis is made, conservative treatment is followed but failed, decompression surgery with extensive resection of anterior scalene muscle and the 1 st rib, and any other structural abnormalities is recommended to resolve the problems. Long-term postoperative follow-up is crucial and important to resolve the residual problems. Our result carries a 96% success rate with a favorable benefit:risk ratio. • A total of 100 thoracic outlet syndrome (TOS) patients were treated and 114 surgeries were performed. • Preoperative evaluation, intraoperative findings and procedure, and postoperative follow-up were included. • Decompression surgery included resection of anterior scalene muscle, the 1st rib, and any other structural abnormalities. • Our result carries a 96% success rate with a favorable benefit:risk ratio.

Combined nerve and vascular ultrasound in thoracic outlet syndrome: A sensitive method in identifying the site of neurovascular compression.

We investigated the diagnostic utility of combined nerve and vascular ultrasound in thoracic outlet syndrome (TOS) in a retrospective cohort study on two sites, involving 167 consecutive patients with the clinical symptoms suggestive of neurogenic and/or vascular TOS, and an age- and sex-matched control group. All patients and control subjects underwent nerve ultrasound of the supraclavicular brachial plexus to look for fibromuscular anomalies / compression of the brachial plexus in the scalenic region, and vascular ultrasound of the infraclavicular subclavian artery with the arm in neutral and abducted position, serving as an indicator for costoclavicular compression of the neurovascular bundle. Based on clinical symptoms, neurogenic TOS (81%) was the most frequent type of TOS, followed by combined neurogenic and arterial TOS (8%). The frequency of abnormal nerve and/or vascular ultrasound findings differed significantly from the control group (P<0.00001). The pooled sensitivity was 48% for nerve ultrasound, 85% for vascular ultrasound, and 94% when combined. Among the findings, the fibromuscular ‘wedge-sickle sign’, indicating compression of the lower trunk in the scalenic region by a congenital fibromuscular anomaly (e.g. Roos ligaments), showed the highest specificity (100%). A bony ‘wedge-sickle sign’ was also delineated, where lower trunk compression is caused by the neck of the 1st rib. As implied by the higher sensitivity of vascular ultrasound, the most common site of compression was the costoclavicular space, but multilevel compression was also frequently observed. In summary, combined nerve and vascular ultrasound is a sensitive and reliable method to support the diagnosis of TOS. It can also identify the site(s) of compression, with obvious therapeutic consequences.

The Description of Postpartum Mother’s Knowledge About The Benefit of Oxytocin Massage in Regards To Multiply The Breast Milk Productivity at Romana Clinic 2022

Oxytocin massage is a massage along the spine (vertebrae) to the fifth or sixth rib. Knowledge of postpartum mothers about the benefits of oxytocin massage will affect breastfeeding to babies, breast milk that does not come out will cause the baby's weight to decrease because the baby's daily needs are not fulfilled properly. This study aims to describe the knowledge of postpartum mothers about the benefits of oxytocin massage in increasing breast milk production at the Romana Clinic 2022. This study used a descriptive method. The sample in this study was postpartum mothers 0-42 days who made postpartum visits at the Romana Clinic in 2022 with a total of 32 respondents. Researchers used primary data. The results of the study are as follows: from 32 respondents, the majority have sufficient knowledge as many as 17 people (53.125%), lack of knowledge as many as 11 people (34.375%), and the minority with good knowledge as many as 4 people (12.50%). Conclusion: Based on the results of the study, it shows that the higher the education of the mother, the higher the knowledge about the benefits of oxytocin massage.

FDG PET/CT and Bone Scintigraphy in Desmoplastic Fibroma of the Bone.

Desmoplastic fibroma is a very rare benign bone tumor with local aggressiveness. We describe imaging findings in 2 cases with desmoplastic fibroma of the bone. One case had a desmoplastic fibroma in the right distal femur, showing bone destruction with sclerotic margins and inhomogeneous FDG uptake. The other case had a desmoplastic fibroma in the left ninth rib, showing progressive peripheral enhancement and increased 99m Tc-MDP uptake.

Intramuscular Neural Distribution of the Serratus Anterior Muscle: Regarding Botulinum Neurotoxin Injection for Treating Myofascial Pain Syndrome.

The serratus anterior muscle is commonly involved in myofascial pain syndrome and is treated with many different injective methods. Currently, there is no definite injection point for the muscle. This study provides a suggestion for injection points for the serratus anterior muscle considering the intramuscular neural distribution using the whole-mount staining method. A modified Sihler method was applied to the serratus anterior muscles (15 specimens). The intramuscular arborization areas were identified in terms of the anterior (100%), middle (50%), and posterior axillary line (0%), and from the first to the ninth ribs. The intramuscular neural distribution for the serratus anterior muscle had the largest arborization patterns in the fifth to the ninth rib portion of between 50% and 70%, and the first to the fourth rib portion had between 20% and 40%. These intramuscular neural distribution-based injection sites are in relation to the external anatomical line for the frequently injected muscles to facilitate the efficiency of botulinum neurotoxin injections. Lastly, the intramuscular neural distribution of serratus anterior muscle should be considered in order to practice more accurately without the harmful side effects of trigger-point injections and botulinum neurotoxin injections.

Investigation of the relationship between corpse age and microscopic morphometric indices of the fourth and sixth rib bones

ABSTRACT This study was performed to estimate the corpse age using histological examinations of the fourth and sixth ribs by a morphometric method. One hundred samples of referred bodies of the Legal Medicine Organization of Lorestan province, Iran, were examined. The sampling was performed from the fourth and sixth ribs. The transverse sections of the samples were prepared, in which various variables such as the diameter of the haversian system (DHC), haversian system perimeter (PHS), haversian system area (AHS), and the thickness of the haversian lamellae (TH) were measured using a Motic microscope video system and the Motic Image Plus 2 software. To predict age from sex and the morphometric parameters a stepwise multiple linear regression was used. Accordingly, AHS in rib 4, DHC with lens 10 in rib 4, DHC with lens 10 in rib 6 and TH in rib 6 remained in the model at significance level 0.05 (R square = 0.1654). Although age was associated with some of the studied parameters, the obtained equation was not fit enough to predict the exact age. Further parameters should be studied for prediction of age in corpse.

Preliminary Study of an Adjustable, Wearable, Noninvasive Vest Providing Chest Compression to Assist with Breathing.

Respiratory muscle paralysis caused by acute cervical spinal cord injury usually leads to pulmonary ventilation dysfunction and even death from respiratory failure. In addition to invasive treatments such as mechanical ventilation, the utilization of noninvasive respiratory support equipment plays an important role in long-term assisted breathing. In this study, we describes a wearable, noninvasive vest with adjustable pressure that enables assisted breathing and with an automatic alarm, and we aims to explore its safety and effectiveness on healthy adult participants. The vest monitors the human heart rate and the blood oxygen index data in real time, the alarm is automatically activated when the data is abnormal. Eight healthy participants had no obvious discomfort during the test while wearing the vest. Lung volumes, antero-posterior diameters, and left-right diameters at the second, fourth, and sixth ribs levels were acquired before and after inflation of the vest airbag, the data acquired by the imaging analysis using chest computed tomography showed significant differences before and after the inflation (p < 0.05). Thus, The vest designed for this study can achieve uniform and effective compression of the thorax, significantly changed the size of the thorax and lungs. It is expected to be applied as noninvasive support for patients with respiratory dysfunction.

Surgical Treatment for Advanced Thoracic Spinal Tuberculosis in Infants: Case Series and Literature Review.

Spinal tuberculosis (TB), or Pott's disease, is the most common form of osteoarticular TB. Early diagnosis and anti-TB drug therapy are the mainstays of treatment. However, in advanced stages, surgery is essential to correct spinal deformities and avoid neurological damage. Very few cases in young children requiring surgical treatment have been described. We present 2 cases of surgically treated thoracic spinal TB in patients under 2 years of age and review the literature on this entity in young children. Two male toddlers, aged 21 (patient 1) and 23 (patient 2) months, were admitted due to insidious systemic deterioration associated with neck stiffness and nonspecific abdominal pain in patient 1 and limping in patient 2. The findings of laboratory tests were unremarkable despite an increase in acute-phase reactants. After an extensive workup, results of a magnetic resonance imaging were consistent with spinal TB in both patients. Patient 1 underwent costotransversectomy of the left third and fourth ribs, debridement, T3-T4 corpectomy, and T2-T6 posterior fusion, to which an anterior rib autograft was added. Patient 2 had a right-sided thoracotomy performed at the apex in addition to debridement and T8 corpectomy; the resected rib was used as anterior structural autograft. Several samples of purulent, caseous material were sent for study. On follow-up, progression of proximal junctional kyphosis was evidenced in patient 1, requiring revision surgery to restore sagittal alignment; the patient was asymptomatic at 2-year follow-up. Patient 2 evolved satisfactorily without neurological sequelae and was asymptomatic at 4-year follow-up. Spinal TB in young children requires appropriate surgical treatment when presenting at advanced stages or having severe deformity or neurological compromise. Despite the challenges associated with young age and ongoing growth, surgery can be performed safely provided proper surgical expertise. After extensive debridement and decompression, priority should be given to restoring sagittal alignment and balance with stable and durable spinal reconstructions.

Isolated chest wall tuberculosis in immunocompetent patients.

Chest computed tomography scan demonstrated inflammatory lesion in and around the right sixth rib costochondral junction.

The Andronowski Skeletal Collection for Histological Research: A Modern Anatomical Contribution

The Andronowski Skeletal Collection for Histological Research (ASCHR) comprises the fastest-growing documented modern human skeletal collection in the world developed specifically for histological and imaging research. Initiated in 2017 by Dr. Janna M. Andronowski, the ASCHR provides a resource for the study of skeletal microarchitectural variability with advancing age and between the sexes. The primary objective is to use this unique skeletal archive for histological and imaging research, with the goal of furthering knowledge of human bone biology. Bone procurement has focused on two sites commonly used in histological age-at-death estimation in anthropology: the mid-shaft sixth rib and femoral mid-shaft. The ASCHR consists of over 1200 bone samples from 621 individuals and thousands of imaging files, with age-at-death ranging from 15–105 years. Additional information collected about ASCHR donors includes occupational history; alcohol, tobacco, and drug use history; a health questionnaire; and cause and manner of death. The ASCHR offers a novel opportunity to devise regression formulae for histological age-at-death estimation and answer questions concerning age-related microarchitectural changes and biomechanical processes. It further serves as a skeletal reference database for researchers from various disciplines, including medicine, anthropology, and the biological sciences. Here, we describe the background of the collection, ethical considerations, bone procurement processes, demographic composition, and existing imaging and histological data available to researchers. Our primary aims are to (1) introduce the scientific community to ASCHR, (2) present descriptive and demographic information regarding the collection, and (3) encourage collaboration among national and international researchers interested in human skeletal biology.