Patellar Dislocations – What, Why, Who and What to Do.
What is a dislocated patella? A dislocated kneecap (patella) occurs when the kneecap (patella) pops out from its normal position. This can occur as the result of trauma or it can be due to a developmental condition that leads to an improper alignment of the kneecap with the distal thighbone (femur). The kneecap usually pops … Read more
Treatment of Combined ACL and MCL Tears in a Knee Joint
Anterior cruciate ligament (ACL) tears are commonly associated with medial collateral ligament (MCL) injuries. This is due to the common mechanism of ACL injury involving the knee going into valgus with rotation. Most medial collateral ligament tears have the potential to heal over the initial 6 weeks after the injury. However in some type 2 … Read more
Meniscus Transplant
This patient tore his medial meniscus and had a subtotal medial meniscectomy (most of his medial meniscus shock absorber was removed surgically). A medial meniscus transplantation was performed. For information on meniscus transplantations, please contact Dr Chang at 683 666 36 or email hcchang@ortho.com.sg Do visit our website at www.ortho.com.sg
A Rare Form of Soccer Injury – Rectus Femoris Tendon Rupture
Rectus Femoris Tendon Rupture A rectus femoris rupture is the full or partial rupture of the upper part of the the thin muscle that goes from the front side of the hip to the knee. The main causes of rectus femoris ruptures are explosive kicking techniques. The rectus femoris muscle is composed of fibers appropriate … Read more
Hoffa’s Syndrome | Fat Pad Impingement Syndrome – A Cause of Anterior Knee Pain
What is Fat Pad Impingement? Sometimes after a forceful direct impact to the kneecap, the fat pad can become impinged (pinched) between the distal thigh bone ( femoral condyle) and the kneecap (patella). As the fat pad is one of the most sensitive structures in the knee, this condition is known to be extremely painful. … Read more
Knee Replacement for Painful Knee Arthritis – Which Implant To Use?
Knee arthritis can be very painful and debilitating. The typical complaints of the patient include: pain in the knee on walking or standing early morning stiffness or stiffness after a period of inactivity puffiness and deformity of the knee inability to squat unable to fully straighten or fully bend the knee coarse sounds coming from … Read more
ACL Reconstruction Rehabilitation
ACL Reconstruction Rehabilitation Protocol ACL reconstruction surgery takes between 1 hour to 1 1/2 hours to perform. The next 6 months is very important if the athlete wants to get back to high level sports. A proper rehabilitation protocol is needed to allow the graft to heal, mature and strengthen while the knee becomes stronger. … Read more
Repairing Meniscus Tears
One of the common causes of sudden knee pain is a meniscus tear. The meniscus is a crescent shaped piece of fibro-cartilage inside the knee joint. Each knee has 2 menisci – a medial meniscus and a lateral meniscus. The medial meniscus is C-shaped whereas the lateral meniscus is more semicircular shaped. Both are composed of fibrocartilage with bony … Read more
Allograft ACL Reconstructions
Allografts refers to human tissues from another person. For a sports surgeon like myself, the common allografts used are tendon allografts for knee ligament reconstructions. Tendon allografts are commonly used by me for ACL (anterior cruciate ligament) reconstructions. My first choice graft is still the patient’s own hamstring tendons. For various reasons, some patients may … Read more
Discoid Meniscus – What To Do If It Is Torn?
Discoid lateral meniscus is a variant of a normal meniscus. People may be born with this. A normal lateral meniscus is crescent moon-shaped while a discoid lateral meniscus looks like a disc ie round. It is commonly found in the lateral meniscus. Discoid medial meniscus can occur as well but is rare in my experience. … Read more
