Prevalence of the sternalis muscle in a sample of routinely dissected human cadavers

Abstract Background The sternal muscle is a supernumerary variant of the thoracic muscles found in 3–8% of the population. When present, it can be unilateral or bilateral, which can produce confusions during surgeries and imagenological examinations. Methods We report the finding of the sternalis muscle in two human cadavers, one adult and one anencephalic infant. The muscles were dissected from the fixed bodies and their morphometry analysed. Results In the case of the adult, we observed two sternal muscles connected in the superior portion by a central tendon. In the case of the anencephalic infant, we found a bilateral sternal muscle, in which the bellies came from the contralateral pectoralis major muscles. The two sternalis muscle variants found here were impossible to categorise according to the current classifications. Conclusions The sternalis muscle displays variants that are still not classified, as observed in the case of the adult and the infant, in which its presence was correlated with anencephaly. We discuss about this muscular variation in the clinical, imagenological and surgical context and propose a developmental link with the occurrence of neural tube closure defects.

Download Full-text

1880: Assessment of Basic Human Performance Resources Predicts Performance of Ureterorenoscopy in Human Cadavers

The Journal of Urology ◽

10.1016/s0022-5347(18)39072-4 ◽

2004 ◽

Vol 171 (4S) ◽

pp. 496-497

Author(s):

Edward D. Matsumoto ◽

George V. Kondraske ◽

Lucas Jacomides ◽

Kenneth Ogan ◽

Margaret S. Pearle ◽

...

Keyword(s):

Human Performance ◽

Human Cadavers

Download Full-text

The Chemistry Decomposition in Human Corpses

Revista de Chimie ◽

10.37358/rc.17.6.5672 ◽

2017 ◽

Vol 68 (6) ◽

pp. 1352-1356 ◽

Cited By ~ 4

Author(s):

Beatrice Gabriela Ioan ◽

Cristiana Manea ◽

Bianca Hanganu ◽

Laura Statescu ◽

Laura Gheuca Solovastru ◽

...

Keyword(s):

Chemical Compounds ◽

Human Remains ◽

Organic Substances ◽

Chemical Decomposition ◽

Factors Influencing ◽

Human Decomposition ◽

Decomposition Processes ◽

Human Cadavers ◽

The Subject ◽

Decomposition Stages

Human body is a complex of organic substances (proteins, lipids, carbohydrates), which undergo chemical decomposition processes soon after death. The compounds released during decomposition characterize the development of different stages of this process: e.g. biogenic amines resulted from the proteins decomposition will confer the particular smell of a cadaver, gases resulted from carbohydrates fermentation will give the bloating aspect of the cadaver. The study of cadaver decomposition and the products resulted from this process is the subject of human taphonomy and is realized nowadays in special facilities in USA and Australia. Identification and analysis of the chemical compounds emerged after human decomposition (gases, liquids, salts) give valuable information to forensic pathologists for estimating the postmortem interval (PMI). More, volatile compounds � which give the odor signature�specific to human remains � may be utilized in identifying clandestine burials, human remains or victims entrapped under ruins in cases of natural disasters. In this paper the authors describe the chemical decomposition stages of human cadavers, the factors influencing these processes and utility for the forensic activity of the results of human taphonomic studies.

Download Full-text

The Volar Distal Radioulnar Portal in Wrist Arthroscopy: An Anatomical Study

Journal of Wrist Surgery ◽

10.1055/s-0040-1720964 ◽

2020 ◽

Author(s):

Francisco J. Lucas ◽

Vicente Carratalá ◽

Ignacio Miranda ◽

Cristobal Martinez-Andrade

Keyword(s):

At Risk ◽

Ulnar Nerve ◽

Surgical Techniques ◽

Anatomical Study ◽

Neurovascular Bundle ◽

Wrist Arthroscopy ◽

Iatrogenic Injuries ◽

Flexor Carpi Ulnaris ◽

Human Cadavers ◽

Triangular Fibrocartilage

Abstract Background Advances in wrist arthroscopy and the emergence of novel surgical techniques have created a need for new portals to the wrist. The aim of this study was to define and verify the safety of the volar distal radioulnar (VDRU) portal. Description of the Technique The VDRU portal is located ∼5 to 10 mm proximal to the proximal wrist crease, just on the ulnar edge of flexor carpi ulnaris tendon and radial to the dorsal cutaneous branch of the ulnar nerve. The ulnar styloid marks the distal point of the portal. Methods An anatomical study was performed on 12 upper extremity specimens of 6 human cadavers. Iatrogenic injuries of neurovascular structures potentially at risk were assessed, and the distance from the portal to these structures was measured. Results No iatrogenic injuries of the structures at risk occurred. Mean distances from the VDRU portal to the ulnar neurovascular bundle, the radial branch of the dorsal sensory branches of the ulnar nerve (DSBUN), and the ulnar branch of the DSBUN were 9.29 ± 0.26 mm, 8.08 ± 0.25 mm, and 10.58 ± 0.23 mm, respectively. There were no differences between left and right wrists. The distances from the VDRU portal to the ulnar neurovascular bundle and the ulnar branch of the DSBUN were significantly shorter in women; this distance was not less than 7 mm in any case. Conclusions The VDRU portal is safe, reproducible, and facilitates the implementation of various techniques related to triangular fibrocartilage complex pathology.

Download Full-text

Polymeric stents for the Eustachian tube: development and human cadaver study

Current Directions in Biomedical Engineering ◽

10.1515/cdbme-2020-3054 ◽

2020 ◽

Vol 6 (3) ◽

pp. 213-216

Author(s):

Kerstin Schümann ◽

Tamara Wilfling ◽

Gerrit Paasche ◽

Robert Schuon ◽

Thomas Lenarz ◽

...

Keyword(s):

Eustachian Tube ◽

Chronic Otitis Media ◽

Cadaver Study ◽

Human Cadaver ◽

Tube Function ◽

Human Cadavers ◽

Radiopaque Markers ◽

Cadaver Studies ◽

Preclinical Safety ◽

Human Cadaver Study

AbstractImpairment of Eustachian tube function with nonsufficient ventilation of the middle ear is a main cause for chronic otitis media. To provide an effective and safe therapy, the innovative concept of Eustachian tube stenting was established. Biodegradable polymeric stents are developed to restore impaired tube function and dissolve after fulfilling their supportive purpose. To evaluate the applicability of the stents in the Eustachian tube, prototypes in conjunction with corresponding implantation instruments were tested in human cadaver studies. Radiopaque markers and a diaphanoscopic approach were tested as additional features to prove correct positioning of catheter and stent in the tube. In the current study biodegradable polymeric stents were implanted in the Eustachian tube of human cadavers without difficulty. Correct positioning of the stents in the tube was proved by diaphanoscopy during intervention and postoperative tomographic and histological analyses. Once designs are optimized on the basis of cadaver studies, preclinical safety and efficacy studies using animal models will be initiated.

Download Full-text

Mediastinal anatomical landmarks, their variants and tips for video-assisted thoracoscopic navigation during oesophageal extirpation

Surgical and Radiologic Anatomy ◽

10.1007/s00276-021-02820-8 ◽

2021 ◽

Author(s):

Sergey Dydykin ◽

Friedrich Paulsen ◽

Tatyana Khorobykh ◽

Natalya Mishchenko ◽

Marina Kapitonova ◽

...

Keyword(s):

Prone Position ◽

Anatomical Study ◽

Structural Features ◽

Posterior Mediastinum ◽

Visual Navigation ◽

Anatomical Landmarks ◽

Video Assisted ◽

Before And After ◽

Human Cadavers ◽

The Right

Abstract Purpose There is no systematic description of primary anatomical landmarks that allow a surgeon to reliably and safely navigate the superior and posterior mediastinum’s fat tissue spaces near large vessels and nerves during video-assisted endothoracoscopic interventions in the prone position of a patient. Our aim was to develop an algorithm of sequential visual navigation during thoracoscopic extirpation of the esophagus and determine the most permanent topographic and anatomical landmarks allowing safe thoracoscopic dissection of the esophagus in the prone position. Methods The anatomical study of the mediastinal structural features was carried out on 30 human cadavers before and after opening the right pleural cavity. Results For thoracoscopic extirpation of the esophagus in the prone position, anatomical landmarks are defined, their variants are assessed, and an algorithm for their selection is developed, allowing their direct visualization before and after opening the mediastinal pleura. Conclusion The proposed algorithm for topographic and anatomical navigation based on the key anatomical landmarks in the posterior mediastinum provides safe performance of the video-assisted thoracoscopic extirpation of the esophagus in the prone position.

Download Full-text