OBJECTIVE We aim to test the effectiveness, accuracy, and usefulness of an automated feedback system in facilitating skill acquisition in virtual reality surgery. STUDY DESIGN We evaluate the performance of the feedback system through a randomized controlled trial of 24 students allocated to feedback and nonfeedback groups. SETTING The feedback system was based on the Melbourne University t...

Surgical procedures are often complex and difficult to train for novice surgeons. Usually, the trainee’s progression is monitored by a senior surgeon who leads the procedure and progressively involves the trainee in the surgery. With such a method, the acquisition of surgery skills is long and depends on the cases the trainee is confronted to. VR multimodal platforms, if adequately designed, ca...

To enable accurate implant placement and precise drilling following preoperative simulation, we developed the BoneNavi system. To realize more precise drilling when the holes are upsized, two methods of surgical guiding were attempted in the present study. One involved using multiple surgical guides with titanium tubes of different diameters, and the other involved using a single surgical guide...

The 'Veria operation' is a new technique for cochlear implantation. It is a non-mastoidectomy technique and uses the endaural approach for the cochleostomy and a direct tunnel drilled through the supero-posterior bony canal wall for the electrode. Two special instruments have been developed for this technique: a special perforator for the drilling of the direct tunnel and a safety electrode for...

The main goal of this work is to use an impedance controller, implemented in a manipulator robot, with the aim of performing in orthopedic surgery. At first, some of the main progresses in robotic surgery are introduced as well as the possible application of this methodology in orthopedic surgery, namely in Hip Resurfacing. Then, the studied force controllers, namely the Impedance Control, some...

Calculation of the specific charge and specific drilling before a blasting operation plays a significant role in the design of a blasting pattern and the reduction of the final extraction cost of minerals. In this work, the information from the Sungun, Miduk and Chah-Firouzeh copper mines in Iran was assessed, and it was found that there was a significant relationship between the specific charg...

Background: Drilling is one of the most widely used process in orthopaedic surgical operation and the same drill bit is used a number of times in hospitals. Using the same drill bit a several times may be the cause of osteosynthesis and osteonecrosis. Methods: In the present work, the effect of repeated orthopaedic surgical twist drill bit on the tool wear, force, torque, temperature and chip m...

Subchondral drilling and microfracture are bone marrow stimulation techniques commonly used for the treatment of cartilage defects. Few studies to date have examined the technical variants which may influence the success of the cartilage repair procedures. This study compared the effect of hole depth (6 mm vs. 2 mm) and hole type (drill vs. microfracture) on chondral defect repair using a matur...

Having multiple external fixation pin designs and insertion techniques has led to debate as to which combination creates the stiffest construct. This study sought to biomechanically evaluate construct strength using self-drilling (SD) and self-tapping (ST) pins inserted with either bicortical or unicortical fixation. SD and ST 5.0 mm stainless steel pins were used in combination with bicortical...