Image Diagnosis: Knee Dislocation

Current Concepts in Acute Knee Dislocation: The Missed Diagnosis?

Traumatic knee dislocation is a serious and potentially limb threatening injury that can be easily missed if meticulous history and examination have not been employed. Neurovascular injuries are common in this condition, and due diligence should be given to their thorough evaluation at time of secondary survey so as to avoid complications such as ischaemia, compartment syndrome and eventual amp...

Vascular injuries associated with dislocation of the knee: Diagnosis protocol

Posterior Knee Dislocation

A 38-year-old male presented to the Emergency Department (ED) after a motorcycle crash. The patient was unable to walk because of isolated left knee pain. There were multiple abrasions over his left anterior tibia and a deformity of the left knee (Figure 1). The patient had very limited range of motion of his knee because of pain. His pedal pulses were normal bilaterally. The lateral view of th...

Chronic Knee Dislocation After Total Knee Arthroplasty.

Knee dislocation after total knee arthroplasty (TKA), although rare, is a dangerous injury that can lead to neurovascular compromise and permanent disability. Chronic dislocation after TKA is even less common and is defined as dislocation that is present for 4 weeks or more. There are few reports of its management. Chronic dislocation may be complicated further by concomitant extensor mechanism...

Dislocation after total knee arthroplasty.

Two cases of dislocation of total knee arthroplasty presented to us within the same week. The first patient is a 71-year-old woman who underwent bilateral primary total knee arthroplasty. The left knee dislocated three weeks after the surgery. Due to failure of conservative measures, she underwent revision total knee arthroplasty. The other patient is a 72-year-old woman presenting ten years af...