Glenoid fossa
(Redirected from Glenoid)
Glenoid fossa is a shallow depression located on the lateral aspect of the scapula, serving as the socket for the ball and socket joint of the shoulder. It articulates with the humerus to form the glenohumeral joint, which is responsible for the wide range of motion of the arm. The shape of the glenoid fossa is somewhat pear-shaped, being wider at the bottom than at the top, which aids in the stability and mobility of the shoulder joint.
Anatomy
The glenoid fossa is surrounded by a rim of fibrocartilage called the glenoid labrum, which deepens the cavity and provides additional stability to the joint. The surface of the fossa is covered with articular cartilage, which reduces friction and absorbs shock during movement. The scapula itself is a flat, triangular bone that sits on the posterior side of the ribcage, and the glenoid fossa is located on its lateral angle.
Ligaments, including the glenohumeral ligaments and the coracohumeral ligament, attach around the glenoid fossa and contribute to the joint's stability. The rotator cuff, a group of muscles and their tendons, also plays a crucial role in stabilizing the shoulder joint by holding the head of the humerus firmly within the glenoid fossa.
Function
The primary function of the glenoid fossa is to facilitate shoulder joint movements, including flexion, extension, abduction, adduction, and rotation. This wide range of motion makes the shoulder one of the most mobile joints in the body, allowing for a vast array of arm movements. However, this mobility also makes the shoulder more susceptible to dislocation and instability issues, particularly if the supporting structures around the glenoid fossa are damaged or weakened.
Clinical Significance
Conditions affecting the glenoid fossa can lead to pain, reduced mobility, and instability in the shoulder. Common issues include glenoid labrum tears, shoulder dislocations, and arthritis of the shoulder. Treatment for these conditions may involve physical therapy, medication, or surgery, depending on the severity and underlying cause.
Surgical Interventions
In cases where conservative treatments are ineffective, surgical interventions such as arthroscopy or shoulder replacement surgery may be necessary. During shoulder replacement, the damaged glenoid fossa can be resurfaced or replaced with a prosthetic component to restore joint function.
Transform your life with W8MD's budget GLP-1 injections from $125.
W8MD offers a medical weight loss program to lose weight in Philadelphia. Our physician-supervised medical weight loss provides:
- Most insurances accepted or discounted self-pay rates. We will obtain insurance prior authorizations if needed.
- Generic GLP1 weight loss injections from $125 for the starting dose.
- Also offer prescription weight loss medications including Phentermine, Qsymia, Diethylpropion, Contrave etc.
NYC weight loss doctor appointments
Start your NYC weight loss journey today at our NYC medical weight loss and Philadelphia medical weight loss clinics.
- Call 718-946-5500 to lose weight in NYC or for medical weight loss in Philadelphia 215-676-2334.
- Tags:NYC medical weight loss, Philadelphia lose weight Zepbound NYC, Budget GLP1 weight loss injections, Wegovy Philadelphia, Wegovy NYC, Philadelphia medical weight loss, Brookly weight loss and Wegovy NYC
WikiMD's Wellness Encyclopedia |
Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates, categories Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD