Surgical technique with computer (Computer Assisted Othopaedic Surgery) is the use of  assistance of robot – computer in order to perform surgical procedures. It refers to an area where the surgeon’s capability collaborates with computer’s ability to complete the procedure otherwise it wouldn’t be possible. Computer assisted systems are divided into three categories: active robotic, semi-active robotic, and passive systems. The difference related with the level of involvement in the surgical procedure. Thus, active systems can perform autonomously part of the procedure, the semi-active perform under surgeons guidance and with passive systems the surgeon performs the operation under robot guidance.

                 Τotal hip replacement using Computer Navigation

Recent gains in knowledge reveal that the ideal implant position is in a narrow range and within a zone is called ΄΄safe zone΄΄. By using conventional techniques in 75% of cases implants are inserted out of this safe zone increasing the risk of early component loosening. This is an expected result since even the most experience surgeon cannot use his personal judgment to achieve the optimal result in 3 dimensional plane. For this reason techniques like Τotal hip replacement using Computer Navigation are essential.

How it works


The surgeon fixes sensors in the part of the patient being operated on and then moves the patient’s limb in specific natural movements so that the camera receives the data and uses it to form a 3D model on the screen. The data, the 3D morphology and the size of the bone, represented on the monitor, allow the surgeon to perform the surgery with greater accuracy, as the system will be able to judge in real time when the joint is properly aligned. In addition, contrarily to conventional technique, more bone stock is preserved and implants are applied in better position. This can reduce both the mechanical and the shear stress on the bearing surfaces leading to longer longevity of the materials and better clinical result.

With software’s continuous development surgery with computer navigation can be performed quickly, securely and in comparable time with conventional technique.

Stages of surgical procedures

  •  Registration of the hip joint
  • Representation of the joint on the computer as a 3D model
  • The computer provides information about the precise depth and angles of implant application
  • Minimum bone is removed
  • The new hip joint with the implants

“In our surgical procedures we use fast track protocols”



During the surgical procedure and condition treatment as well, technology is once again by our side providing many benefits against conventional surgical techique.

  • Personalized treatment according to patient’s anatomy. All patients are different so are their hips!
  • We use the most advantaged, reliable, most used and twice awarded system Οrthopaedic Navigation System (Orthopilot).
  • Accurate and safer in implant positioning with latest technology.
  • Objective and optimal hip alignment.
  • With navigation system there is no need of expensive (MRI) or radiation exposure exams (CT)
  • Proven reability and effectiveness from more than 300 publications.
  • Routine use in more than 350.000 cases worldwide.
  • Minimum bone removal with precision thus minimizing bleeding and complications
  • Improvement in clinical results, hip joint stability and ROM.
  • Early rehabilitation and shorter hospital stay.
  • Maximum possible longevity of the implant components.
  • Same cost as conventional procedure

For more information request an appointment.

We are always contactable to inform you about this technique and it’s benefits

Robotic Surgery


What this offers is another navigation system to plan the placement of the prostheses. The thing to keep in mind is that the robots involved in surgery are not completely autonomous but they’re controlled by the doctor.Thus, doctors can combine their knowledge and judgment with the precision and control of a robot.

By using CT scan information, the system can create 3-D images of the joint and enables the surgeon to plan and customize the surgical procedure with precision for your unique joint.

As the surgeon manipulates the robotic arm he is receiving a real time feedback or guidance to plan precisely the size, placement and alignment of your implants before surgery and thus to accurately position them.



Improvement in patient’s satisfaction

  • Jacofsky DJ, Allen M. Robotics in Arthroplasty: A Comprehensive Review. J Arthroplasty. 2016 Oct;31(10):2353-63.

Optimal hip anatomy restoration

  • Clavé A et al. Can computer-assisted surgery help restore leg length and offset during THA? A continuous series of 321 cases. Orthop Traumatol Surg Res. 2015 Nov;101(7):791-5.
  • Ellapparadja P et al. Reproduction of Hip Offset and Leg Length in Navigated Total Hip Arthroplasty: How Accurate Are We? J Arthroplasty. 2015 Jun;30(6):1002-7.

Optimal implant application comparing to conventional technique

  • Liu Z et al. Imageless navigation versus traditional method in total hip arthroplasty: A meta-analysis. Int J Surg. 2015 Sep;21:122-7
  • Snijders T. Precision and accuracy of imageless navigation versus freehand implantation of total hip arthroplasty: A systematic review and meta-analysis. Int J Med Robot. 2017 Dec;13(4)

The use of computer navigation in total hip arthroplasty reduces complication comparing to conventional technique

  • Gausden EB et al. Computerized navigation for total hip arthroplasty is associated with lower complications and ninety-day readmissions: a nationwide linked analysis. Int Orthop. 2020 Mar;44(3):471-476
  • Bohl DD et al. Computer-Assisted Navigation Is Associated with Reductions in the Rates of Dislocation and Acetabular Component Revision Following Primary Total Hip Arthroplasty. J Bone Joint Surg Am. 2019 Feb 6;101(3):250-256

Thromboembolic incidents reduction

  • Montgomery BK et al. Computer Navigation vs Conventional Total Hip Arthroplasty: A Medicare Database Analysis. J Arthroplasty. 2019 Sep;34(9):1994-1998