HC Chang Orthopaedic Surgery Pte Ltd
  • Dr Chang Haw Chong

    Dr Chang is a Sports Orthopaedic Surgeon. He manages all types of sports-related Orthopaedic injuries.
    Email: hcchang@ortho.com.sg
    Tel: 683 666 36

Regaining Ability to Walk after a Periprosthetic Fracture of the Knee

An elderly lady presented with severe pain, deformity and swelling of her right knee after a fall when she slipped on a wet floor. She was not able to stand or walk. She has a history of right knee osteoarthritis with a total knee replacement done more than 20 years ago. She was able to … Continue reading

Avascular Necrosis of the Knee Joint | Role of a Partial Knee Replacement

What is Avascular Necrosis of the Knee? Avascular necrosis is a disease resulting from the temporary or permanent loss of blood supply to the bones. Without blood, the bone tissue dies, and ultimately the bone may collapse. If the process involves the bones near a joint, it often leads to collapse of the joint surface. … Continue reading

Ingrown Toe Nail

Ingrown Toenails Onychocryptosis, also known as unguis incarnates, or ingrown toenail is a common form of nail disease. An ingrown toenail is a common condition in which the corner or side of one of your toenails grows into the soft flesh of the toe. Normal toenail growth should be vertical or outward toward the tip of … Continue reading

Hip Arthroscopy for Septic Hip | Bacterial Infection of the Hip Joint in Children

Septic Hip refers to a bacterial infection within the hip joint. It can occur in newborn infants to older children. It can sometimes be due to fungal infection. How Did the Hip Get Infected? The joint can become infected with germs that travel through the bloodstream from another part of the body e.g. a skin … Continue reading

Cut Extensor Tendon to the Big Toe – Surgical Repair

Extensor Hallucis Longus Tendon – This is the tendon to the big toe that allows the big toe to extend. There are often patients who sustain minor lacerations to the top of the foot due to falling broken glass, knifes, or other sharp objects. The laceration may look innocuous but it may have cut through … Continue reading

Enhancing Cartilage Repair in the Knee Joint | Enhanced Microfracture

Cartilage Repair using Microfracture The articular cartilage of the knee joint covers the underlying bone of the knee and cushions it from shock during walking and running activities. Damage to the articular cartilage can lead to pain, swelling and eventually arthritis. Microfracture surgery is an articular cartilage repair surgical technique that works by creating tiny … Continue reading

Avascular Necrosis of the Hip Joint | Treatment with Total Hip Replacement

What is Avascular Necrosis (AVN) of the Hip? Bones are living tissue, and like all living tissue they rely on blood vessels to bring blood to keep them alive. When disease or injury prevents the blood supply from flowing freely to a bone, cells in the bone begin to die. As the bone withers, the surrounding … Continue reading

An Enlarging Lump in the Finger | Tumour of the Finger | Giant Cell Tumour of The Phalanx

Tumour of the Finger  A taxi driver presented with an enlarging lump over his right ring finger. He tells me that this lump has been present for many years but recently has become bigger and occasionally painful. X-rays showed an expansile bony tumour of the proximal phalanx of the right ring finger. Possible Cause of … Continue reading

Nightly Pain in the Thigh – Think of Osteoid Osteoma

Nightly Thigh Pain A 5 year old girl presented to me with nightly pain in her left thigh for the last 3 months. Her mother gave the story that her daughter would wake up at about 3am each night with severe pain in her left thigh. She would cry and would not be able to … Continue reading

Repair of Torn Discoid Lateral Meniscus

Discoid Lateral Meniscus – How to Repair It A lateral meniscus is an important shock absorber for the lateral compartment of the knee joint. Whilst the medial compartment of the knee joint is largely convex (femur end) and concave (tibia end) and hence conforming even in the absence of the medial meniscus, the lateral compartment … Continue reading

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