Dislocation after total knee arthroplasty is a difficult problem and is even more challenging if it occurs following revision. We report the case of a 82 year old male presenting after a frank posterior dislocation (Cam Jump) in a posterior stabilized revision knee arthroplasty without trauma. Flexion space instability with extensor insufficiency was presumed to be the cause of the dislocation ...

The rotating hinge knee prosthesis is a popular intervention in patients lacking stability with highly constrained total knee arthroplasty. Despite improvements in design, nonmechanical and mechanical complications continue to be a problem. Dislocation of the hinge has been widely described, mainly due to the component fracture. Few reports describe isolated dislocation of the rotating stem. We...

Congenital dislocation of the knee was described by Chatelaine in 1822 (quoted by Shattock 1891) and then by Bord in 1834 (quoted by Forgon and Szentp#{233}tery 1961). It was at first thought to be more common in girls, but in a review of a larger series of cases the sex distribution was found to be equal (Provenzano 1947). Kopits (1925) reviewed 2,393 patients with congenital anomalies and fou...

An acute knee dislocation is an uncommon injury, with a high rate of associated vascular and neurologic injuries as well as potentially limb-threatening complications. High-energy trauma is the most common cause of an acute knee dislocation, although lower-energy injuries, such as those sustained during athletic competition, are increasing in incidence. Injuries to the popliteal artery and comm...

We report our experience with a unilateral congenital dislocation of the knee associated with a developmental dysplasia of the hip on the same side. Our case is a good example of congenital dislocation of the knee caused by abnormal intrauterine pressure leading to this type of congenital postural deformity. To our knowledge this is the first case of congenital dislocation of the knee reported ...

Dislocations of the knee are relatively uncommon injuries. However, the incidence of this injury appears to be increasing. Knee dislocations are most often high velocity blunt injuries, with motor vehicle accidents being a frequent etiology. Other causes include falls from height, athletic injuries, farming and industrial accidents, and even low velocity mechanisms such as a misstep into a hole...

An increasing number of patients with hip fracture have been seen with osteoporosis associated with osteoarthritis. Although knee dislocation is related to high-energy trauma, low-grade injuries can also lead to knee dislocation which is defined as "ultra-low velocity dislocation." The case reported here is of an 82-year-old patient who presented with a left intertrochanteric hip fracture. Part...

Knee dislocation is an uncommon, potentially limb-threatening, knee injury. Most often caused by high-velocity trauma, it can also result from low- or even ultra-low-velocity trauma. Rapid identification of the injury, reduction, and definitive management are necessary to minimize neurovascular damage. We present a case of rotatory anterolateral knee dislocation sustained during a twisting spor...

Knee dislocation after revision total knee arthroplasty (TKA) is a dangerous, albeit rare, injury that can lead to neurovascular compromise and permanent disability. A paucity of peer-reviewed literature exists regarding this complication after revision TKA. Tibiofemoral dislocation commonly occurs with minimal trauma, such as rising from a seated position, and is commonly associated with a fle...