Mako THA

Mako Total Hip enables surgeons to more accurately plan and place components, potentially reducing variability within the THA procedure and allowing for enhanced functional and clinical outcomes1-8

Features & Benefits

Features & Benefits

Patient Specific Pre-Operative Planning

  • A virtual 3-D model of the patient's joint is created from a pre-operative CT scan
  • The virtual model allows a surgeon to virtually plan and place the acetabular and femoral components in the transverse, coronal and sagittal planes of the patient, accounting for his or her specific pelvic tilt. 
  • The surgeon can plan the initial implant size, orientation and alignment to create a patient specific 3-D pre-operative surgical plan.

Functional Implant Positioning

  • Enhanced pre-operative planning allows a surgeon to assess and plan leg length and offset restoration using a CT based 3-D model of the operative and non-operative hip joints.
  • Functional positioning allows a surgeon to restore leg length and offset based on an intraoperative assessment of the joint. The Mako system offers the capability of capturing leg length and offset measurements prior to dislocating the hip and during trial reduction. This capability allows the surgeon to functionally position implants to restore leg length and offset, as well as compare the final reduction results to the pre-operative plan.

Robotic-Arm Assisted Execution

Guided Single Stage Reaming

  • Auditory and visual feedback, as well as tactile perception control are designed to aid surgeons in achieving accurate and reproducible surgical results1-8
  • Pre-operative 3-D planning aids in more accurate preparation of the acetabulum 1,8
  • Mako Total Hip has the potential for bone conservation and decreased blood loss 1,6,8
  • Guided single stage reaming allows for:
    • Controlled translation, orientation and depth

Guided Cup Placement

  • Auditory and visual feedback, as well as tactile perception control provide guidance to surgeons during cup placement 1-8
  • Mako Total Hip has been shown to enable surgeons to place the acetabular cup within +/- 5 degrees of inclination and version compared to the pre-operative plan.1,2,6,7
  • In cadaveric studies, Mako Total Hip acetabular cup placement has been shown to be four times more accurate and reproducible than manual THA.1

Facilitates surgical approach of choice:

  • Direct Anterior
  • Posterolateral
  • Anterolateral

Mako Total Hip Workflow Options

Mako Total Hip provides surgeons the choice between the Express and Enhanced Femoral workflows. Both workflows provide a surgeon with patient specific planning, functional positioning, guided single stage reaming and cup placement, as well as reduced leg length and offset values. The Enhanced workflow requires additional steps, but provides added features that are not available with the Express workflow. These features include:

  • Guided neck resection
  • Intra-operative broach/stem version and position tracking
  • Combined anterversion display and the capability to make intra-operative adjustments
Proven Stryker Implants

Proven Stryker Implants

Stryker offers a comprehensive femoral and acetabular portfolio, which offers surgeons the confidence in being able to meet the needs of each patient. With the Mako THA application surgeons have the ability to use the Accolade II and Exeter femoral implants and the Trident and Tritanium Acetabular shells. Stryker’s advanced bearing options such as MDM X3, X3 Polyethylene, and Trident Constrained Liners are available with the system.

Clinical Success

Clinical Success

Acetabular Placement

  • "Robotic-arm assisted THA improved both acetabular abduction and anteversion accuracy and achieved reduced early dislocation rates and improved rates of limb length discrepancy compared with manual THA" 6,9
  • Robotic-arm assisted THA demonstrated significantly higher modified Harris Hip Score and UCLA activity-level compared with manual THA at a minimum 1 year follow-up.6,9
  • 100% of robotic-arm assisted cups were placed within the Lewinnek "Safe Zone" for anteversion and inclination compared to 80% of manual cases.3
  • 92% of robotic-arm assisted cups were placed within the Callanan "Safe Zone" for anteversion and inclination compared to 62% of manual cases.3

Preservation of Acetabular Bone Stock

  • Indicated greater preservation of bone stock using RTHA compared to CTHA10
  • "RTHA allowed for the use of smaller acetabular cups in relation to the patient's femoral head size, compared to CTHA"10
Procedure Video

Procedure Video

Extra Resources

Extra Resources

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  1. Nawabi DH;Conditt MA; Ranawat AS; Dunbar NJ; Jones, J; Banks S, Padgett DE. Haptically guided robotic technology in total hip arthroscopy - A cadaveric investigation. Journal of Engineering in Medicine. December 2012. [Epub ahead of print]
  2. Dounchis J, Elson L, Bragdon C, Padgett DE, Marchand R, Illgen R, Malchau H. A Multicenter Evaluation of Acetabular Cup Positioning in Robotic-Assisted Total Hip Arthroscopy. 43rd Annual Course: Advances in Arthroscopy, October 22-25, 2013, Boston, MA
  3. Domb BG, EL Bitar YF, Sadik BS, Stake CE, Botser IB. Comparison of Robotic-assisted and Conventional Acetabular Cup Placement in THA: A Matched-Pair Controlled Study. Clin Orthop Relat Res. 2014 Jan;472(1):329-36
  4. Domb BG, et al,. Does Robotic-Assisted Computer-Navigation Affect Acetabular Cup Positioning in Total Hip Arthroplasty in the Obese Patient? A Comparison Study. 14th Annual CAOS Meeting, June 18-21, 2014, Milan, IT.
  5. Domb BG, et al,. The Learning Curve Associated with Robotic-Assisted Total Hip Arthroplasty 14th Annual CAOS Meeting, June 18-21, 2014, Milan, IT.
  6. Illgen R. Robotic Arm Assisted THA Improved Accuracy, Reproducibility and Outcomes Compared to Conventional Technique. 43rd Annual Course: Advances in Arthroplasty, October 22-25, 2013, Boston, MA
  7. Accuracy of Cup Positioning and Achieving Desired Hip Length and Offset Following Robotic THA. Jerabek SA; Carroll KM; Maratt JD; Mayman DJ; Padgett DE; 14th Annual CAOS Meeting, June 18-21, 2014, Milan, Italy.
  8. Efficient and Accurate Hip Length and Combined Offset with the MAKOplasty THA Femoral Express Workflow, Thompson, M., March 2014
  9. Bukowski, B.; Abiola, R; Illgen R. Outcomes after primary total hip arthroplasty: Manual compared with robotic assisted techniques. ; 44th Annual Advances in Arthroplasty; Cambridge, MA. October 7-10 2014.
  10. Suarez-Ahedo, C; Gui, C; Martin, T; Stake, C; Chandrasekaran, S; Christopher, J; Domb, B. Preservation of Acetabular Bone Stock in Total Hip Arthroplasty Using Conventional vs. Robotic Techniques: A Matched-Pair Controlled Study. CAOS International 15th Annual Conference; June 17-20, 2015, Vancouver, Canada. 

 

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