The reference in 3D planning.


The reference in preoperative planning

With HIP-PLAN®, surgeons can plan hip replacement in three dimensions, giving them much more information than conventional X-rays and thus improving the quality of their preoperative planning. HIP-PLAN® is recognised as the reference in 3D hip preoperative planning(1) (2)(3).


  • More precise 3D planning of implant sizes(1)(2)(3);
  • More precise orientation of implants, particularly in the axial and sagittal planes(3)(4);
  • Control over cup overhang and cam effect risks;
  • Anticipation of stem stability in the femoral canal by evaluating the bone densities in contact with the implant;
  • Controlled reconstruction with implant simulation for visualising the end result.

Greater precision for better results

HIP-PLAN® planning is easily reproducible in the operating theatre, allowing surgeons to more accurately restore leg length, femoral offset and anteversion of the prosthetic components compared to 2D planning(1)(2)(3)(4). HIP-PLAN® thus accompanies surgeons on a daily basis to help them overcome the main hip replacement challenges:


  • Reduced risk of postoperative dislocation(1)(2)(3)(12);
  • Reduced risk of uneven leg lengths(1)(2)(3);
  • Improved abductor muscle efficiency and walking(5)(9)(10)(12);
  • Reduced risk of head-insert decoaptation (edge loading)(1)(2)(3), known to increase joint wear(11)(12) and the risk of noise (squeaking)(6);
  • Reduced risk of cam effect (impingement), known to increase the risk of postoperative dislocation(2)(4)(8).


Better preparation for greater surgical efficiency

Surgeons can anticipate their choice of implants and reconstruction objectives, meaning they are better prepared. This increases the chances of a well-controlled reconstruction, with no surprises, while optimising the materials required for the procedure.


  • Optimisation of materials required during surgery by anticipating the implant sizes and instruments;
  • Planning report to guide surgeons throughout the procedure;
  • Numerous simple checks for verifying neck resection accuracy and the position of the implants in relation to the planning;
  • More reliable and efficient surgery.

Resources to download

(1) Sariali E, Mouttet A, Pasquier G, Durante E, Catone Y. Accuracy of reconstruction of the hip using computerised three-dimensional pre-operative planning and a cementless modular neck stem. J Bone Joint Surg Br. 2009 Mar;91(3):333-40.

(2) Sariali E, Mauprivez R, Khiami F, Pascal-Mousselard H, Catonné Y. Accuracy of the preoperative planning for cementless total hip arthroplasty. A randomised comparison between three-dimensional computerised planning and conventional planning. Orthop Traumatol Surg Res. 2012 Apr;98(2):151-8.

(3) Hassani H, Cherix S, Ek ET, Rüdiger HA. Comparisons of preoperative three-dimensional planning and surgical reconstruction in primary cementless total hip arthroplasty. J Arthroplasty. 2014 Jun;29(6):1273-7.

(4) Sariali E, Boukhelifa N, Catonne Y, Pascal Mousselard H. Comparison of three-dimensional planning-assisted and conventional acetabular cup positioning in total hip arthroplasty: A randomized controlled trial. J Bone Joint Surg Am. 2016 Jan 20;98(2):108-16.

(5) Sariali E, Klouche S, Mouttet A, Pascal-Moussellard H. The effect of the femoral offset modification on gait after total hip arthroplasty. Acta Orthop. 2014 Apr;85(2):123-7.

(6) Sariali E, Klouche S, Mamoudy P. Ceramic-on-ceramic total hip arthroplasty: Is squeaking related to an inaccurate three-dimensional hip anatomy reconstruction? Orthop Traumatol Surg Res. 2014 Jun;100(4):437-40.

(7) Sariali E, Stewart T, Jin Z, Fischer J. In vitro investigation of friction under edge-loading conditions for ceramic-on-ceramic total hip prosthesis. J Orthop Res. 2010 Aug;28(8) :979-85.

(8) Patel A B, Wagle R R, Usrey M M, Thompson M T, Incarvo S J, Noble P C. Guidelines for implant placement to minimize impingement during activities of daily living after total hip arthroplasty. J Arthroplasty. 2010 Dec;25(8):1275-81.e1.

(9) Asayama I, Chamnongkich S, Simpson K J, Kinsey T L, Mahoney O M. Reconstructed hip joint position and abductor muscle strength after total hip arthroplasty. J Arthroplasty. 2005 Jun;20(4):414-20.

(10) McGrory B J, Morrey B F, Cahalan T D, An K N, Cabanela M E. Effect of femoral offset on range of motion and abductor muscle strength after total hip arthroplasty. J Bone Joint Surg Br. 1995 Nov;77(6):865-9.

(11) Sakalkale D P, Sharkey P F, Eng K, Hozack W J, Rothman R H. Effect of femoral component offset on polyethylene wear in total hip arthroplasty. Clin Orthop Relat Res. 2001 Jul;(388):125-34.

(12) Charles M N, Bourne R B, Davey J R, Greenwald A S, Morrey B F, Rorabeck C H. Soft-tissue balancing of the hip: the role of femoral offset restoration. J Bone Joint Surg Am. 2004;86:1078-1088.

(13) Flecher X, Ollivier M, Argenson JN. Lower limb length and offset in total hip arthroplasty. Orthop Traumatol Surg Res. 2016 Feb;102(1 Suppl):S9-20.

(14) Pasquier G, Ducharne G, Sari Ali E, Giraud F, Mouttet A, Durante E. Total hip arthroplasty offset measurement: is CT scan the most accurate option? Orthop Traumatol Surg Res. 2010 Jun;96(4):367-75.

(15) Huppertz A, Radmer S, Asbach P, Juran R, Schwenke C, Diederichs G, Hamm B, Sparmann M. Computed tomography for preoperative planning in minimal-invasive total hip arthroplasty: radiation exposure and cost analysis. Eur J Radiol. 2011 Jun;78(3):406-13.