Open fracture-dislocation of the knee associated with nonunion of the medial femoral condyle and chronic tendon patellar rupture.

The incidence of coronal fractures of the femoral condyle, Hoffa fractures, ranges from 8.7% to 13% of all fractures of the distal femur and are often observed in polytraumas. Hoffa fractures may be misdiagnosed and consequently not properly treated.

Understanding the human knee and its relationship to total knee replacement.

The knee is the intermediate joint of the lower limb and it allows the movement between the femur, tibia and patella. Under normal conditions there is a normal distribution of the load forces on these three articular components in both the static load and during ambulation. The understanding of anatomy and knee biomechanics is important for the gait analysis, the diagnosis of joint diseases and the design and development of prosthetic implants.

Arthroscopic treatment for cuff tear: strength recovery at 12 months of follow-up.

The rotator cuff tear is one of the most frequent musculoskeletal disorders, but the real incidence is not clearly known because it's usually asymptomatic, even if it's more common in patients with shoulder pain (36%). The prevalence of the complete tear among general population is estimated approximately around 20.7% and it is more usual with the increasing of the age.