Benefits for Surgeons

Symbios is actively involved with continuing professional development and medical education of our surgeon partners including hip plan software. By joining us you will have the benefit of accessing specific information and downloads including:

  • HipPlan software downloads
  • KneePlan software downloads
  • CT Examination protocol for the attention of your SI Radiographer
  • Operative technique guides
  • Published clinical studies
  • Continuing professional education (including details of our annual HipPlan user group meeting provisional programme)

HipPlan® – 3D Planning software supports the Symbios Implant Strategy

Our 3D planning software fully supports the company’s entire implant strategy for accurate pre- operative planning and reconstruction of the hip joint.

Developed over the past 9 years, involving our resident software engineers, the project has evolved from the vast experience Symbios has gained during the design, manufacture and implantation of over 29,000 custom hip prosthesis since 1989. Many of these cases being complex dysplasias, planned from CT scans. The reported results have been hugely encouraging, Wettstein et Al. reporting 100% survivorship at 94.9 months (CORR 2005), Argenson reporting 93% survivorship at 15 years in patients less than 50 years old (COOR 2009).

Validation of the pre- operative planning process during routine 3D templating pre- operatively (JBJS- Br Vol. 91- B, No 3, March 2009), published over 90% reproducibility, Implant pre- plan vs. Implant actual using post operative CT scans. The software is affordable, transportable across multiple clinical commitments and a real alternative to navigated hip surgery optimising component positioning.

The SPS prosthesis, with Interchangeable neck/ trunion Modularity and modular hard bearings is driving the pace of the software development programme. The SPS implant range offers the surgeon unprecedented choice to accurately and promptly reconstruct the hip joint, minimising joint replacement complications through impingement, dislocation, offset and leg length discrepancies. The SPS modular system captures much of what ‘bespoke’ implants can offer, but in an affordable and convenient ‘off the shelf’ offering.

KneePLAN® – Planning software optimising implant positioning in TKR

77,000 TKR’s were undertaken in NHS hospitals with a further 36,000 in the Independent sector in the UK in 2016. Through implant design and development, TKR now has reliable results for long term fixation with revision as the end point criteria, but patient disatisfaction and functional outcome following Total Knee Replacement is still at an alarming 20% despite significant growth in numbers of procedures undertaken.

The following captures much of the the phylosophy of Symbios and its approach to optimised component positioning and soft tissue balance, whilst addressing the necessary compromises in joint reconstruction during the pre- operative planning stage.

DICOM images obtained through a low dose CT scan are processed through our KneePLAN software, the reconstructive parameters of the knee are planned and approved by the operating surgeon prior to manufacture of ‘Patient Specific Instrumentation’, including cutting guides, all through ‘materials additive manufacturing’, a manufacturing process that has opened the door to customised knee prosthesis design and manufacture. Constitutional varus/ valgus deformity and joint line obliquity can therefor be successfully reconstructed by taking into consideration: 1. reconstitution of the mechanical axis; 2. the patient’s native anatomy; 3. kinematic requirements.