Dr. Kevin Yip

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

Featured on Channel NewsAsia

Vertebral Osteomyelitis

Basics

Description Infection of the vertebral bony elements, not including the disc space General Prevention Prevention of HIV and hepatitis Early treatment of hematogenous infection Postoperative wound care, including dressing changes and prophylactic postsurgical antibiotics Epidemiology Bimodal distribution: Small peak in youth (10-20 years old) Largest peak in adults >50 years old Increasing rates in […]

Tenosynovitis

Basics Description Tenosynovitis is the painful inflammation of a tendon and its surrounding synovial sheath. It affects long tendons, most commonly in the fingers, wrist, or ankle. The inflammation may be related to an acute injury, chronic overuse, a systemic inflammatory disease (rheumatoid arthritis) or infection, or it may be idiopathic in origin. The […]

Talus Fracture

Basics Description The talus, a small bone in the hindfoot: Articulates with the calcaneus and the remainder of the midfoot bones Supports the body’s weight and distributes the body’s forces to the foot Is critical to proper function of the foot Is covered (~60%) with articular cartilage Is vascularly supplied by vessels through a […]

A Patient’s Guide to Cervical Foraminotomy

Introduction

Foraminotomy is a surgical procedure for widening the area where the spinal nerve roots exit the spinal column. A foramen is the opening around the nerve root, and otomy refers to the medical procedure for enlarging the opening. In this procedure, surgeons widen the passageway to relieve pressure where the spinal nerve […]

Stress Fracture

Basics Description A stress (microscopic) fracture occurs when: Repetitive stresses are applied to a bone faster than it is able to remodel to withstand this challenge. As the stressing force continues, the bone gradually fatigues and eventually breaks. Remodeling occurs in response to the stress but does not happen quickly enough to prevent the […]

Spondylolisthesis

Basics Description Spondylolisthesis is an abnormal AP translation of 2 vertebral bodies relative to each other. This translation is secondary to a defect in the pars interarticularis (spondylolysis) or the posterior ligamentous-bony restraints. Spondylolisthesis is classified by type (Table 1) and by the severity of the slip (Table 2). General Prevention No preventive measures […]

Spine Fusion

Basics Description Spine fusion is a surgical procedure that causes 2 or more vertebral levels to be joined with solid bony healing in the spine. It is performed to correct spinal instability from traumatic, degenerative, or iatrogenic causes and to prevent spinal deformity progression. Epidemiology Incidence Over the last 2 decades, the incidence of […]

Spinal Stenosis

Basics Description Compression of neural elements secondary to osteoarthritic changes (bone spurs, hypertrophied ligamentum flavum, disc space narrowing) at intervertebral levels and facet joints Characterized by back and/or lower extremity pain, numbness, weakness, and possible bladder/bowel dysfunction. General Prevention No known preventive measures Epidemiology Symptoms develop during the 5th and 6th decades. No gender […]

Skeletal Scintigraphy

Basics Description Skeletal scintigraphy is a nuclear medicine imaging method for bone disease. Advantages: High sensitivity for early detection of disease Whole body survey Disadvantage: Limited specificity Diagnosis Signs and Symptoms Indications Whole body skeletal scintigraphy: Primary bone tumors Osteomyelitis Joint prosthesis pain Occult fractures Stress fractures and shin splints Spondylosis Reflex sympathetic dystrophy […]

Shoulder Instability

Basics Description Because of the shoulder’s extensive ROM, it is prone to instability. The term encompasses a spectrum of disorders of varying degree, direction, and cause. Instability should be distinguished from laxity. Laxity is the symmetric translation of the humeral head over the surface of the glenoid without symptoms. Instability occurs when the degree […]