A dislocated knee is when the three bones of your knee are out of place and aren’t aligned the way they should be. It can happen if the structures in your knee are abnormal. Some people are born with ...

The mechanical behaviour of nanocrystalline materials (that is, polycrystals with a grain size of less than 100 nm) remains controversial. Although it is commonly accepted that the intrinsic ...

Understanding how dislocations (line defects in the crystal structure) occur when 3D-printing metals has been unclear to materials scientists. Understanding when and how dislocations form in ...

A broken, fractured, or dislocated jaw can create problems with eating and breathing. Immediate medical attention is necessary to minimize complications and accelerate healing. Experiencing facial ...

Congenital hip dislocation (CHD) occurs when a child is born with an unstable hip. It’s caused by abnormal formation of the hip joint during their early stages of fetal development. Another name for ...

The kneecap or patella is a triangular piece of bone that protects the front of the knee joint. It may get dislocated when the leg suddenly changes direction and the foot is planted on the ground, ...

Although shoulder dislocation can occur at about the same rates in both younger and older patients, injuries in older patients are more likely to be overlooked or misdiagnosed, resulting in years of ...

Correspondence to Dr Timothy Lathlean, Adelaide Medical School, The University of Adelaide Faculty of Health and Medical Sciences, Adelaide, SA 5005, Australia; timothy.lathlean{at}adelaide.edu.au ...

Objective To review and compare treatments (1) after primary traumatic shoulder dislocation aimed at minimising the risk of chronic shoulder instability and (2) for chronic post-traumatic shoulder ...

The diagram shows the location of atoms close to an edge dislocation line that runs back into the screen. The green circle outlines a group of atoms close to the dislocation line that have larger ...

Kneecap dislocation occurs when the patella bone, which sits at the front of the knee, comes out of position. In the process, the connective tissues that hold the bone in place may stretch and tear. A ...