What is the glenoid bone?
What is the glenoid bone?
The glenoid is part of the scapula, or shoulder blade. It is the cup of bone that is the “socket” portion of the shoulder ball-and-socket joint.
How serious is a glenoid fracture?
Glenoid rim fractures often lead to chronic shoulder instability. Unstable glenoid neck fractures need surgical treatment and stable fractures can be treated conservatively.
What causes glenoid bone loss?
Glenoid bone loss is suggested when a patient recalls a high-energy injury mechanism, especially if the arm was abducted (70° or more) at that time. Patients with osseous defects usually complain of instability within the midranges of motion (20° to 60° of abduction) or recall a progression of instability.
What is glenoid deficiency?
Shoulder instability secondary to bony glenoid deficiency is increasingly being recognized as a common cause for recurrence and poor outcomes. Glenoid bone deficiency may result from acute trauma to the anterior glenoid rim or from repeated contact with the humeral head during subsequent dislocation episodes.
How do you fix a broken glenoid?
Most patients experiencing a glenoid fossa fracture must undergo surgical intervention. With any type of glenoid fracture, the shoulder surgeon makes their priority restoring the normal contour of the socket and preventing further injury.
How do you heal a broken glenoid?
It is typical to repair the bone with small plates and/or screws to ensure that the bones heal in the proper position. New arthroscopic methods are available for glenoid fractures. These can be done with small poke holes and in most cases only suture anchors are required for healing.
Can a glenoid fracture heal without surgery?
A majority of glenoid fractures are minimally displaced or nondisplaced and thus amenable to conservative treatment. In general, any nondisplaced fracture involving the glenoid can be treated without surgical intervention. These patients do require a period of immobilization as well as close radiographic follow up.
How is glenoid defect measured?
The line between the anterior margin of the circle and the anterior margin of an injured glenoid represents the size of the osseous loss. The size of the bone defect divided by the glenoid width and multiplied by 100 represents the percentage of glenoid bone loss .
How do you measure a glenoid track?
(A) The glenoid track is calculated as 84% of the actual glenoid width measured on the sagittal oblique magnetic resonance (MR) image. A best-fit circle is placed on the glenoid to calculate the expected width prior to bone loss. Therefore, both percentage of bone loss and glenoid track can be determined.
What is glenoid erosion?
Background: Glenoid erosion is one of the main concerns in shoulder hemiarthroplasty. The goal of this study was to quantify glenoid erosion and to identify risk factors in patients with humeral hemiarthroplasty. Methods: There were 118 shoulders in 113 patients available for a standardized retrospective review.
Is a glenoid fracture painful?
The symptoms of a glenoid fracture may include shoulder pain, swelling, a deformity at the site of the fracture and inability to move the arm.
How do you fix a glenoid fracture?
What is glenoid track?
The glenoid track is the area of posterior humeral articular surface in contact with the glenoid when the arm moves along the posterior end-range of movement (Fig. 17). If the HSL stays within the glenoid track, no engagement/dislocation occurs.
What is the most common glenoid wear pattern in shoulder osteoarthritis?
Cofield and Matsen have described posterior glenoid wear with varying degrees of posterior subluxation of the humeral head as the most common pattern of glenoid wear for primary osteoarthritis [20, 21].
What is glenoid wear?
Introduction. Posterior glenoid wear is common in glenohumeral osteoarthritis. Tightening of the subscapularis causes posterior humeral head subluxation and a posterior load concentration on the glenoid. The reduced contact area causes glenoid wear and potentially posterior instability.
Why is there a dip in my shoulder?
Shoulder impingement occurs when the tendon rubs against the acromion. The causes of this impingement include: Your tendon is torn or swollen. This can be due to overuse from repetitive activity of the shoulder, injury or from age-related wear and tear.
Is it better to use heat or cold for arthritis?
For an acute injury, such as a pulled muscle or injured tendon, the usual recommendation is to start by applying ice to reduce inflammation and dull pain. Once inflammation has gone down, heat can be used to ease stiffness. For a chronic pain condition, such as osteoarthritis, heat seems to work best.