The purpose of this study was to assess the accuracy of injections of dye into the first extensor compartment of the wrist using three different techniques in 150 wrists in 75 fresh cadavers. To compare injections, 50 wrists from 25 cadavers were used for each technique. After the injections, the first extensor compartment was dissected and the dispersion of dye around the abductor pollicis longus and extensor pollicis brevis tendons was investigated. In 72 % of all the wrists, acrylic dye was dispersed into one compartment containing both the abductor pollicis longus and extensor pollicis brevis tendons, but in 28% of the wrists there was a separate compartment for extensor pollicis brevis and dye entered only one of the compartments (14% for each compartment). For accurate injections, we think the injections should be made separately over the two tendons, to allow for the possibility of a septum within the compartment.
Sella turcica is a saddle-shaped depression located in the middle cranial fossa on the upper surface of the sphenoid bone. It is enclosed by the pituitary fossa in which the pituitary gland is lodged, tuberculum sellae on the front and dorsum sellae in the rear. [1][2][3][4] Two anterior and two posterior clinoid processes form a protrusion on the pituitary fossa, and these are the structures that protect the pituitary gland in the sella turcica. The extensions of the sphenoid bone's ala minor to the anterior and medial form the anterior clinoid processes.The endings of the dorsum sellae form the posterior clinoid processes. [1,4,5] Sella turcica is a bony structure that is closely related with the pituitary gland, and is of both anatomical and clinical importance. The sellar and parasellar regions are anatomically complex structures where neoplastic, infectious, inflammatory, developmental and vascular pathologies may develop. [2,6] Research on sella turcica focuses not only on its dimensions, but also on its morphology. Sella morphology is important in both evaluating treatment outcomes AbstractObjectives: Morphometry of sella turcica should be known to evaluate pathological sella turcica. The aim of this study was to measure the size and describe the morphology of sella turcica in a Turkish population.Methods: This study included 101 individuals aged 17 to 70 years who went under CT scan. Sella length, sella width, sella height anterior, sella height median, sella height posterior, sella area, sella depth and sella anteroposterior (AP) diameter were measured.Results: Sella length was measured as 9.18±1.91 mm, sella width 10.41±1.74 mm, sella height anterior 8.09±1.65 mm, sella height median 7.71±1.24 mm, sella height posterior 7.48±1.34 mm, sella area 69.15±17.45 mm 2 , sella depth 7.87± 1.37 mm and antero-posterior sella diameter as 11.48±1.82 mm. When these sizes were compared between males and females, only sella length and width differed significantly. When compared by decades, there was a statistically significant difference only in the sella area parameter. Conclusion:Sella turcica dimensions of the Turkish population obtained by CT in this study can be used in estimating pituitary gland size and in determining any pathology in the sellar and parasellar regions. In addition, these results may help clinicians who encounter pathologically large sella areas in easily distinguishing it. Therefore, knowing the normal anatomy and variations of sella turcica is important for neurologists and neurosurgeons who deal with the pathologies of this area.
Background:Development of the foetal period of the meniscus has been reported in different studies.Aims:Evaluation of lateral and medial meniscus development, typing and the relationship of the tibia during the foetal period.Study Design:Anatomical dissection.Methods:We evaluated 210 knee menisci obtained from 105 human foetuses ranging in age from 9 to 40 weeks’ gestation. Foetuses were divided into four groups, and the intra-articular structure was exposed. We subsequently acquired images (Samsung WB 100 26X Optical Zoom Wide, Beijing, China) of the intra-articular structures with the aid of a millimetric ruler. The images were digitized for morphometric analyses and analysed by using Netcad 5.1 Software (Ak Mühendislik, Ankara, Turkey).Results:The lateral and medial meniscal areas as well as the lateral and the medial articular surface areas of the tibia increased throughout gestation. We found that the medial articular surface areas were larger than the lateral articular surface areas, and the difference was statistically significant. The ratios of the mean lateral and medial meniscal areas to the lateral and medial articular surface areas, respectively, of the tibia decreased gradually from the first trimester to full term. The most common shape of the medial meniscus was crescentic (50%), and that of the lateral meniscus was C-shaped (61%).Conclusion:This study reveals the development of morphological changes and morphometric measurements of the menisci.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.