Patient specific instrumentation for corrective osteotomy in case of posttraumatic cubitus varus in children.

Malunion in cubitus varus most often results from inadequate supracondylar fracture reduction or from secondary displacement. Treatment of cubitus varus needs an accurate preoperative planning to obtain a good functional and esthetical outcome. Planning based on conventional radiology is source of inaccuracy and clinical results are variable.

Surgical navigation in paediatric orthopaedics.

Computer-assisted orthopaedic surgery was born in the 1990s. Nowadays, computer-assisted orthopaedic surgery is used for transpedicular screw fixation and for total knee arthroplasty.Patient-specific instrumentation is one type of computer-assisted surgery based on volumetric images, such as computed tomography or magnetic resonance imaging.

Surgical anatomy of the aortic root: implication for valve-sparing reimplantation and aortic valve annuloplasty.

Background: To enhance the reproducibility of aortic valve-sparing reimplantation and annuloplasty, we analyzed the topographic relationship between the ventriculoaortic junction (VAJ), basal ring (BR), and sinotubular junction (STJ). The root base thickness is also quantified.

Method: Fifty-eight fresh human aortic valves were analyzed.

3D-corrective osteotomy using surgical guides for posttraumatic distal humeral deformity.

An original technique was developed to correct distal humerus malunion using a three-dimensional computer-assisted planning and a custom-made surgical guide. The technique was used in three cases (two with cubitus varus and one with cubitus valgus).A CT-scan of the distal humerus was obtained.

Design and preliminary in vivo validation of a robotic laparoscope holder for minimally invasive surgery.

Background: Manual manipulation of the camera is a major source of difficulties encountered by surgeons while performing minimally invasive laparoscopic surgery.

Methods: A survey of laparoscopic procedures and a review of existing active and passive holders were conducted. Based on these analyses, essential requirements were highlighted for such devices.

Development and first in vivo trial of EvoLap, an active laparoscope positioner.

To determine essential specifications for an active endoscope holder, a survey of laparoscopic procedures was conducted. A review of the literature highlighted the advantages and limitations of existing scope-holding systems. From this analysis, basic requirements were listed for such devices.