What is Hill-Sachs deformity?
A Hill-Sachs lesion is a fracture in the long bone in the upper arm (humerus) that connects to the body at the shoulder. You doctor might have discovered this condition if you’ve experienced a dislocated shoulder. In this case, the arm bone slips out of the socket and is compressed against the socket’s rim.
How do you treat Hill-Sachs deformity?
Conservative treatment is only recommended in cases of small bony defects (<20% Hill-Sachs lesion), in other cases (larger and more significant lesions), surgical treatment is needed. The conservative treatment should be based on strengthening the deltoid, the rotator cuff muscles and scapular stabilizers.
What is a shallow Hill-Sachs lesion?
The Hill-Sachs lesion is an important bony sign of previous anterior shoulder dislocation and instability. Using orthographic projection, we evaluated the Hill-Sachs lesion in 30 shoulders in 27 patients with recurrent anterior shoulder instability.
What is the surgery for Hill-Sachs lesion?
Large or engaging Hill-Sachs lesions are addressed by either reconstructing (rebuilding) any lost bone on the glenoid side or performing a “Remplissage” procedure which repairs the posterior capsule and rotator cuff tendon to the Hill-Sachs bone defect.
How is Hill-Sachs deformity measured?
The maximal humeral head height (A) was determined by drawing a line in the centre of the head parallel to the orientation of the Hill–Sachs lesion, followed by a line perpendicular to the humeral head height to determine the residual humeral head width (B).
What is the difference between Hill-Sachs and Bankart lesion?
Anterior dislocation causes a typical impression fracture on the posterior humeral head, known as a Hill–Sachs lesion. The labrum or the glenoid itself may also be damaged; these injuries are known as Bankart lesions.
What causes a Hill-Sachs deformity?
A Hill-Sachs deformity is a compression injury to the posterolateral aspect of the humeral head created by the glenoid rim during dislocation. When driven from the glenohumeral cavity during dislocation, the relatively soft head of the humerus hits against the anterior edge of the glenoid.
What causes Hill-Sachs defect?
The Hill-Sachs defect occurs when there is an injury to the bone and cartilage of the humeral head. The shoulder joint is made up of the humeral head and the glenoid bone (the socket). Ligaments, cartilage, and tendons help hold these bones in place.
Why is it called a Bankart lesion?
The Bankart lesion is named after English orthopedic surgeon Arthur Sydney Blundell Bankart (1879–1951). A bony Bankart is a Bankart lesion that includes a fracture of the anterior-inferior glenoid cavity of the scapula bone.
How is glenoid bone loss measured in CT?
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 [17].
What is a small hill-Sachs fracture?
A Hill-Sachs lesion, or Hill-Sachs impaction fracture, is an injury to the back portion of the rounded top of your upper arm bone (humerus). This injury occurs when you dislocate your shoulder. It’s named for the two American radiologists who first described the injury in 1940: Harold Hill and Maurice Sachs.
Is Hill-Sachs or Bankart more common?
Bankart lesions are up to 11x more common in patients with a Hill-Sachs lesion, with increasing incidence with increasing size 8.
Does a Hill-Sachs lesion heal on its own?
Foreman: The Hill-Sachs lesion is a “divot” made in the bone and cartilage on the back of the ball (humerus) caused when it bangs against the edge of the socket (glenoid) when the shoulder dislocates. It will not heal, but usually doesn’t cause a problem unless it is very large.
What causes Hill-Sachs deformity?
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.