Specialists

Featured on Channel NewsAsia

Arthrosis

Glenohumeral arthrosis has been a well-described complication of various surgical procedures to correct shoulder instability. Over-tightening of the anterior structures, can result in stiffness, and drive the humeral head posteriorly, creating shear on the cartilage and early arthrosis.

Some patients paradoxically may have instability and stiffness. They feel unstable because of excessive laxity in […]

Open Surgery

Open surgery for instability remains an acceptable method of treatment when the surgeon lacks the equipment, experience, or technical expertise to perform an arthroscopic repair. Furthermore, open surgery is indicated in situations where current arthroscopic methods are likely to fail—namely, in the setting of large bone or soft tissue deficiencies or in the context of […]

Capsular Lesions

Traumatic intra-substance injury of the joint capsule is commonly associated with anterior dislocation. Depending on the magnitude of the anterior shear force, either plastic deformation or a complete tear of the joint capsule can occur.

The recognition of a concomitant posttraumatic capsular laxity or rupture and a Bankart lesion is essential in order to select […]

Anatomy

The glenohumeral joint is formed by a unique articulation between a larger and nearly spherical humeral head with a shallow and much smaller glenoid. Minimal bony constraints combined with a unique anatomical architecture and functional arrangements allow the shoulder joint to have the largest range of motion in the body.

Despite its minimally constrained […]

Strong varus movement at the ankle

Significance.

This movement tests the integrity of the strong distal tibiofibular ligaments.

Positioning.

The ankle is in neutral position and the knee extended. The examiner is distal to the foot. The ipSilateral hand fixes the leg at the inner side, just above the ankle. The contralateral hand grasps the foot at the heel.

Procedure.

[…]

Passive medial rotation in prone position

The subject lies in the prone position with both knees flexed to a right angle. The examiner encircles both heels and performs a bilateral medial rotation. The range of movement is assessed by the twisted position of the feet.This test compares the range of internal rotation.

Common pathological situations:

• Lateral pain usually indicates a […]

Passive lateral rotation in prone position

The subject lies in the prone position with both knees flexed to a right angle. The examiner encircles both heels and performs a bilateral external rotation. The range of movement is assessed by the twisted position of the feet. This test may be decisive in comparing the range of external rotation.

Common pathological situations:

• […]

Weakness in the Wrist

Women about 20 years old of slender build sometimes complain of pain in the wrist with exertion (often disappearing at rest) which radiates along the upper side of the forearm. On examination, a degree of hypermobility and laxity of the wrist may be noticed, but often no significant abnormality can be found. Sometimes a small […]

Shoulder Instability

It is important to make a distinction between laxity and instability. Shoulder laxity is a translation of the humeral head on the glenoid (socket) in the absence of clinical symptoms or pathologic changes. This means that normal shoulders may be lax without being unstable. When the laxity results in clinical symptoms and is associated with […]

Dislocation of the Shoulder Joint

Dislocation of the shoulder joint is a relatively common injury in sports such as ice hockey, team handball, American football, rugby, riding, alpine skiing, skating, and wrestling. Shoulder dislocations are 3 times more common in men 20–30 years old, than in persons aged over 30 years. The male to female ratio for primary dislocation is […]