Dr. Kevin Yip

Dr Kevin Yip
Orthopaedic Surgeon
MBBS(UK), FRCS(EDIN), FAM(SING), FHKCOS(ORTHO)

Featured on Channel NewsAsia

The Proteoglycans

Proteoglycans consist of small amounts of protein bound to negatively charged polysaccharide chains referred to as GAGs. In articular cartilage, proteoglycans form a large portion of the macromolecular framework (commonly about 30% to 35% of the tissue dry weight), but in ligaments they form only a small portion of this framework, usually less than 1% […]

Articular cartilage injuries

Injuries to the articular cartilage (chondral) surfaces can affect the joint surfaces of the femur, the tibia, and the patella. Such injuries are often disregarded as they can be difficult to identify. They may result from direct impact against the knee joint, but can also occur in association with meniscal and ligament injuries. Indeed, any […]

Lateral Radial Ligament Injuries

The lateral radial ligament of the MCP joint of the thumb (the side ligament away from the palm) is less commonly injured. The mechanism of injury is usually a forceful rotation of a bent MCP joint. Injuries to this ligament are treated in a similar fashion to those of the ulnar ligament. The conservative regimen […]

Fractures and Dislocations

Dislocation

Dislocation of the elbow joint occurs mainly in athletes participating in contact sports, such as football, rugby, and ice hockey, but can also occur in riders, cyclists, wrestlers, skiers, and squash players. A common cause of this injury is falling on the hand with a bent elbow. A similar injury can occur if the […]

Etiology of Skiing Injuries

Skiing

Since the 1960s participation in downhill skiing has increased at least 40-fold in the USA. The number of skiers is estimated to be around 8 million on an annual basis. The number of ski injuries annually is probably more than 1 million per year worldwide.

Skier-related factors

Relative to the population at risk, men […]

Osteoarthritis

The term ‘osteoarthritis’ applies particularly to the degeneration and excessive wear of articular cartilage, although gradual changes in underlying bone tissue (subchondral bone) also occur. The condition is one which develops and progresses with increasing age. It may be ‘primary’ or ‘secondary’. – Primary osteoarthritis, the cause of which is unknown, occurs most frequently in […]

Ligament injuries

Ligament injuries in athletes are common, particularly around the knee and the ankle. They also occur in the shoulder, elbow, and thumb

Functional anatomy

Ligaments are attached to the two bones that compose the joint . Ligaments provide stability to the joint, while still allowing motion. They cannot actively resist motion, but provide a ‘check […]

Meniscus Tear

SYMPTOMS

Effusion and exercise-induced pain often combined with mechanical problems of locking, clicking, clunking or discomfort on impact (compression and rotation). This injury is common in sports such as football, rugby and other high-intensity contact sports but is also common, with no major trauma, as degenerative tears in older athletes or sedentary individuals.

AETIOLOGY

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Cartilage Injuries

SYMPTOMS

There is a gradual or acute on set of effusion and exercise-induced pain often combined with mechanical problems of locking, clicking, clunking or discomfort on impact (compression and rotation). This injury is common in sports such as football, rugby and other high-intensity contact sports but can also occur gradually in sports where hypermobility is […]

Multi-Ligament Ruptures of the Ankle

SYMPTOMS

Almost immediate effusion / haemarthrosis after severe inversion or eversion or hyper-extension/flexion sprain, sometimes complicated by direct impact from a block tackle, which is common in contact sports.

AEATIOLOGY

This injury may cause ruptures of anterior talo-fibular and fibulo-calcanear ligaments in combination with deltoid or syndesmosis ligament ruptures or posterior capsule injuries with […]