[Customized 3D cutting guides : what applications in orthopedic surgery ?].

3D printing is a technology that has been evolving rapidly over the past twenty years. It is an additive manufacturing process which allows the creation of objects without geometry restrictions. This process has applications in orthopaedic surgery through personalized cutting guides and implants which offer the possibility to treat complex pathologies such as tumoral surgery, architectural defects of the acetabulum and malunions.

[How and why to monitor apprehension after anterior cruciate ligament surgery].

Numerous studies highlight the psychological aspect being the most frequent factors limiting the resumption of sport, following an anterior cruciate ligament reconstruction surgery, even before strength, the capacity of performing high impact pivoting movements, endurance, or joint stability. Scores that quantify apprehension, have been developed as clinical tool to monitor psychological readiness and in some cases to delay the moment for return to sport. Unfortunately, there are no established cut-off values for these scores to predict when and if return to sport at the same level as pre-traumatically can be resumed.