scholarly journals Dynamic changes of the joint capsule in relation to the zona orbicularis: An anatomical study with possible implications for hip stability mechanism

2021 ◽  
Author(s):  
M. Tsutsumi ◽  
A. Nimura ◽  
H. Utsunomiya ◽  
K. Akita
Keyword(s):  
Anatomical Study ◽  
Joint Capsule ◽  
Dynamic Changes ◽  
Hip Stability

Innervation of the interphalangeal joint of the thumb: anatomical study

2018 ◽  
Vol 43 (6) ◽  
pp. 631-634 ◽  
Author(s):  
Ezequiel E. Zaidenberg ◽  
Dante Palumbo ◽  
Ezequiel Martinez ◽  
Martin Pastrana ◽  
Efrain Farias Cisneros ◽  
...  
Keyword(s):  
Radial Nerve ◽  
Sensory Nerve ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Interphalangeal Joint ◽  
Consistent Pattern ◽  
Nerve Branch ◽  
Anatomical Basis

We dissected 30 cadaveric thumb interphalangeal joints to delineate the sensory nerve anatomy of its capsule. Four articular branches supplying the interphalangeal joint capsule of the thumb were found in all specimens. Ulnar and radial proper digital nerves provide one palmar capsular nerve branch on their respective sides. Of the two dorsal branches of the radial nerve at the dorsum of the thumb, we observed that each nerve provided one branch to the interphalangeal dorsal capsule. Our findings demonstrate a consistent pattern of innervation and may provide the anatomical basis to the treating surgeon for an effective and safe denervation of the interphalangeal joint of the thumb.

Distribution of sensory nerves supplying the knee joint capsule and implications for genicular blockade and radiofrequency ablation: an anatomical study

2019 ◽  
Vol 41 (12) ◽  
pp. 1461-1471 ◽  
Author(s):  
Loïc Fonkoué ◽  
Catherine Behets ◽  
Jean-Éric K. Kouassi ◽  
Maude Coyette ◽  
Christine Detrembleur ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Knee Joint ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Sensory Nerves

Anatomy of the Tarsal Canal and Sinus in Relation to the Subtalar Joint Capsule

2018 ◽  
Vol 39 (11) ◽  
pp. 1360-1369 ◽  
Author(s):  
Reiko Yamaguchi ◽  
Akimoto Nimura ◽  
Kentaro Amaha ◽  
Kumiko Yamaguchi ◽  
Yuko Segawa ◽  
...  
Keyword(s):  
Subtalar Joint ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Anterior Capsule ◽  
Talocalcaneal Joint ◽  
Sinus Tarsi ◽  
Anatomical Relationship ◽  
Synovial Tissues ◽  
Fibrous Tissues ◽  
Tarsal Canal

Background: Anatomical knowledge of the tarsal canal and sinus is still unclear owing to the complexity of the ligamentous structures within them, particularly the relationship with the capsules of the subtalar joints. The aim of this study was to examine the anatomical relationship between the fibrous tissues of the tarsal canal and sinus and the articular capsules of the subtalar joint. Methods: We conducted a descriptive anatomical study of 21 embalmed cadaveric ankles. For a macroscopic overview of the subtalar joint, we removed the talus in 18 ankles and separated the fibrous tissues from the surrounding connective tissues to analyze the layered relationship between the inferior extensor retinaculum (IER) and the subtalar joint capsule. Additionally, we histologically analyzed the tarsal canal and the medial and lateral sides of the tarsal sinus using Masson’s trichrome staining in 3 ankles. Results: The medial and intermediate roots of the IER and interosseous talocalcaneal ligament (ITCL) were located in the same layer and were connected to each other, between the capsules of the posterior talocalcaneal and talocalcaneonavicular joints. The intermediate root of the IER and the cervical ligament (CL) had adjacent attachments on the tarsal sinus, and synovial tissues originating from the joint capsules filled the remaining area in the tarsal canal and sinus. Conclusion: We determined that the tarsal canal and sinus tarsi contained 3 layered structures: the anterior capsule of the posterior talocalcaneal joint, including the anterior capsule ligament; the layer of ITCL and IER; and the posterior capsule of the talocalcaneonavicular joint, including the CL. Clinical Relevance: The results of this study may help with the understanding of the pathomechanism of subtalar instability and sinus tarsi syndrome, resulting in better treatment.

Collagen Fiber Arrangement of the Human Shoulder Joint Capsule – An Anatomical Study

1989 ◽  
Vol 136 (4) ◽  
pp. 300-302 ◽  
Author(s):  
D. Steiner ◽  
B. Hermann
Keyword(s):  
Shoulder Joint ◽  
Collagen Fiber ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Fiber Arrangement

scholarly journals New insight into the iliofemoral ligament based on the anatomical study of the hip joint capsule

2019 ◽  
Vol 236 (5) ◽  
pp. 946-953 ◽  
Author(s):  
Masahiro Tsutsumi ◽  
Akimoto Nimura ◽  
Keiichi Akita
Keyword(s):  
Hip Joint ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Iliofemoral Ligament ◽  
Insight Into

Joint Capsule Attachment to the Extensor Carpi Radialis Brevis Origin: An Anatomical Study With Possible Implications Regarding the Etiology of Lateral Epicondylitis

2014 ◽  
Vol 39 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Akimoto Nimura ◽  
Hitomi Fujishiro ◽  
Yoshiaki Wakabayashi ◽  
Junya Imatani ◽  
Hiroyuki Sugaya ◽  
...  
Keyword(s):  
Lateral Epicondylitis ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Extensor Carpi Radialis

scholarly journals Innervation of the acromioclavicular joint by the suprascapular nerve

2019 ◽  
Vol 12 (3) ◽  
pp. 178-183
Author(s):  
Paul Borbas ◽  
Karim Eid ◽  
Eugene T Ek ◽  
Georg Feigl
Keyword(s):  
Acromioclavicular Joint ◽  
Anatomical Study ◽  
Suprascapular Nerve ◽  
Joint Capsule ◽  
Sensory Nerves ◽  
Sensory Innervation ◽  
Anatomical Landmarks ◽  
The Mean

Background The suprascapular nerve is largely responsible for the majority of the sensory innervation of the acromioclavicular joint. In this anatomical study, we describe, in detail, the anatomy of the sensory innervation of the acromioclavicular joint by the branches of the suprascapular nerve. Methods Twenty-seven shoulders from 17 cadaveric specimens were carefully dissected to identify the course of the suprascapular nerve, with the main focus being on the sensory innervation of the acromioclavicular joint. Nine specific measurements of the acromioclavicular joint sensory nerves were made of each shoulder in relation to distinct anatomical landmarks to determine the mean location and course of these nerves. Results In all 27 shoulders (100%), a sensory branch to the acromioclavicular joint with a proximal origin from the suprascapular nerve could be depicted (“first sensory branch”). The mean length of this branch was 4.3 cm (range: 3.3–5.3 cm). In 14 shoulders (52%), a further sensory branch of the suprascapular nerve innervating the posterior acromioclavicular joint capsule could be identified (“second sensory branch”). Discussion A detailed anatomical description of the sensory innervation of the acromioclavicular joint from suprascapular nerve branches was performed, which can potentially aid in the development of more focused anesthetic blockades and acromioclavicular joint denervation procedures.

scholarly journals Anatomical Characteristics and Biomechanical Properties of the Oblique Popliteal Ligament

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Xiang-Dong Wu ◽  
Jin-Hui Yu ◽  
Tao Zou ◽  
Wei Wang ◽  
Robert F. LaPrade ◽  
...  
Keyword(s):  
External Rotation ◽  
Morphological Characteristics ◽  
Anatomical Study ◽  
Biomechanical Properties ◽  
Joint Capsule ◽  
Semimembranosus Tendon ◽  
Before And After ◽  
Length Width ◽  
The Mean ◽  
Lateral Head

Abstract This anatomical study sought to investigate the morphological characteristics and biomechanical properties of the oblique popliteal ligament (OPL). Embalmed cadaveric knees were used for the study. The OPL and its surrounding structures were dissected; its morphology was carefully observed, analyzed and measured; its biomechanical properties were investigated. The origins and insertions of the OPL were relatively similar, but its overall shape was variable. The OPL had two origins: one originated from the posterior surface of the posteromedial tibia condyle, merged with fibers from the semimembranosus tendon, the other originated from the posteromedial part of the capsule. The two origins converged and coursed superolaterally, then attached to the fabella or to the tendon of the lateral head of the gastrocnemius and blended with the posterolateral joint capsule. The OPL was classified into Band-shaped, Y-shaped, Z-shaped, Trident-shaped, and Complex-shaped configurations. The mean length, width, and thickness of the OPL were 39.54, 22.59, and 1.44 mm, respectively. When an external rotation torque (18 N·m) was applied both before and after the OPL was sectioned, external rotation increased by 8.4° (P = 0.0043) on average. The OPL was found to have a significant role in preventing excessive external rotation and hyperextension of the knee.

Anatomical Study of the Innervation of Anterior Knee Joint Capsule

2018 ◽  
Vol 43 (4) ◽  
pp. 407-414 ◽  
Author(s):  
John Tran ◽  
Philip W.H. Peng ◽  
Karen Lam ◽  
Ehtesham Baig ◽  
Anne M.R. Agur ◽  
...  
Keyword(s):  
Knee Joint ◽  
Anatomical Study ◽  
Joint Capsule ◽  
Anterior Knee

Ultrastructural Cytopiasmic Changes of Adrenal Cortex During Pregnancy

1969 ◽  
Vol 27 ◽  
pp. 298-299
Author(s):  
T. M. Murad ◽  
Karen Israel ◽  
Jack C. Geer
Keyword(s):  
Adrenal Gland ◽  
Steroid Hormones ◽  
Adrenal Cortex ◽  
Lipid Droplets ◽  
Plasma Cholesterol ◽  
Adrenal Steroids ◽  
Dynamic Changes ◽  
Cortical Cells ◽  
Acetyl Coenzyme A ◽  
Adrenal Cortical Cells

Adrenal steroids are normally synthesized from acetyl coenzyme A via cholesterol. Cholesterol is also shown to enter the adrenal gland and to be localized in the lipid droplets of the adrenal cortical cells. Both pregnenolone and progesterone act as intermediates in the conversion of cholesterol into steroid hormones. During pregnancy an increased level of plasma cholesterol is known to be associated with an increase of the adrenal corticoid and progesterone. The present study is designed to demonstrate whether the adrenal cortical cells show any dynamic changes during pregnancy.

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