Specialists

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Medial Collateral Ligament (MCL)

SYMPTOMS

The symptoms are immediate haemarthrosis and pain in the medial part of the knee. If only the external portion is ruptured there will be superficial bruising rather than haemarthrosis. This is an injury common in contact sports such as football, rugby and other high-intensity sports. The MCL ruptures during an excessive valgus sprain and […]

Unicameral Bone Cyst

Basics

Description A benign membrane-lined, fluid-filled lesion of bone that develops in childhood and fills in by maturity Location: 80% occur in the proximal humerus and proximal femur. Other, less common, areas are the proximal tibia, distal tibia, distal femur, calcaneus, distal humerus, radius, fibula, ilium, ulna, and rib. Usually centrally located adjacent to the […]

Subtrochanteric Fracture

Basics Description By definition, subtrochanteric hip fractures (or, simply, subtrochanteric fractures) extend into the region between the lesser trochanter and a point 5 cm distally. Classification: Multiple systems exist, but prognostically the most critical factor is fracture stability, which is based on the degrees of comminution of the medial and posteromedial cortex. The Russell […]

Slipped Capital Femoral Epiphysis

Basics Description SCFE is a disorder of the hips of adolescents or preadolescents in which the femoral head is displaced relative to the rest of the femur. The femoral head remains in the acetabulum. Most notable features: The outward rotation of the lower femur and leg and a limp Classification: Stable versus unstable (1): […]

Osteosarcoma

Basics Description The most common primary malignant bone tumor in children and young adolescents May occur occasionally in older adults but is much less common than chondrosarcoma and MFH May occur within other lesions (secondary sarcoma) such as Paget disease, bone infarcts, and irradiated bone A highly malignant tumor with invasive local growth and […]

Hip Pain in the Child

Basics Description Hip pain is a term used to describe discomfort in the groin, which receives sensory innervation provided by the obturator and femoral nerves. This pain can be produced by a lesion anywhere in the region of the hip joint, such as: Capsule and synovial lining Bone of the pelvis or proximal femur […]

Hip Anatomy and Examination

Basics Description Bones: Pelvis and femur bone The acetabulum is the socket Muscles: Flexors: Iliopsoas, sartorius, rectus femoris Extensors: Gluteus maximus, hamstring muscles Abductors: Gluteus medius, gluteus minimus Adductors: Gracilis, pectineus, adductor longus, adductor brevis, adductor magnus Nerves: Femoral: Hip flexors Obturator: Adductors Superior gluteal: Abductors Ligaments: Sacroiliac: Sacrum to ilium Sacrotuberous: Sacrum to […]

Giant Cell Tumor

Basics Description A benign but often locally aggressive neoplasm, characterized by large numbers of uniformly distributed, osteoclastlike giant cells and a background population of plump, epithelioid-to-spindle mononuclear cells. The vast majority of these tumors are located near the articular end of a tubular bone; ~50% occur in the knee. Other frequently involved sites: Distal […]

Femoral Shaft Fracture in the Child

Basics Description Femoral shaft fractures are defined as those >5 cm below the lesser trochanter, but above the distal metaphyseal (wider) portion of the lower femur. The location usually is specified as: Proximal Midshaft Distal Although the femur usually requires a large amount of energy to fracture, fractures can occur with low amounts of […]

Developmental Dysplasia of the Hip

Basics Description DDH covers a spectrum of varying degrees of superolateral displacement of the femur and deformation of the acetabulum, developing mostly in utero or, rarely, in infancy. It usually is discovered on routine screening in early childhood. It occasionally is discovered in teens with a limp or pain, in which case it probably […]