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Explore the latest from Presurgeo — news, clinical publications and product documents.

News

Latest announcements

Clinical Publications

Research behind SkeletonPlanner

Peer-reviewed studies by our founders Dr. Ralph Sakkers and Dr. Harrie Weinans backing the development of AI-powered 3D bone analysis and osteotomy planning.

Progression of bone and joint space deformity in patients with mild knee osteoarthritis: Data from the IMI-APPROACH cohort.

Nguyen HC, Bax E, Custers RJH, van Egmond N, Kuiper RJA, Arbabi V, Rayegan H, Gielis WP, Sakkers RJB, Kloppenburg M, Blanco FJ, Haugen IK, Berenbaum F, Jansen MP, Mastbergen SC, Lindner C, Cootes TF, Weinans H.

Osteoarthr Cartil Open. 2026 Mar 4;8(2):100762

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Uncovering the Impact of Center of Rotation of Angulation Location on High Tibial Osteotomy in Knee Osteoarthritis: A Potential Pathway for Improved Outcomes.

Janssen Y, Nguyen HC, Custers RJH, van Egmond N, Kruyt MC, Sakkers RJB, Thooft J, Kloppenburg M, Blanco FJ, Haugen IK, Berenbaum F, Mastbergen SC, Weinans H, Bax EA.

Cartilage. 2026 Feb 18:19476035261420279

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Impact of bone and cartilage segmentation from CT and MRI on both bone forearm osteotomy planning.

Kuiper RJA, Colaris JW, Stockmans F, van Es EM, Viergever MA, Seevinck PR, Weinans H, Sakkers RJB.

Int J Comput Assist Radiol Surg. 2023 Dec;18(12):2307-2318

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Automatic Assessment of Lower-Limb Alignment from Computed Tomography.

Kuiper RJA, Seevinck PR, Viergever MA, Weinans H, Sakkers RJB.

J Bone Joint Surg Am. 2023 May 3;105(9):700-712

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Visual Inspection for Lower Limb Malalignment Diagnosis Is Unreliable.

Nguyen HC, van Egmond N, de Visser HM, Weinans H, Sakkers RJB, Custers RJH.

Cartilage. 2022 Dec;13(4):59-65

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Efficient cascaded V-net optimization for lower extremity CT segmentation validated using bone morphology assessment.

Kuiper RJA, Sakkers RJB, van Stralen M, Arbabi V, Viergever MA, Weinans H, Seevinck PR.

J Orthop Res. 2022 Dec;40(12):2894-2907

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3D-printed saw guides for lower arm osteotomy, a comparison between a synthetic CT and CT-based workflow.

Willemsen K, Ketel MHM, Zijlstra F, Florkow MC, Kuiper RJA, van der Wal BCH, Weinans H, Pouran B, Beekman FJ, Seevinck PR, Sakkers RJB.

3D Print Med. 2021 Apr 29;7(1):13

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The need for a standardized whole leg radiograph guideline: The effects of knee flexion, leg rotation, and X-ray beam height.

Huu C. Nguyen, Willem Paul Gielis, Nienke van Egmond, Harrie Weinans, Cornelis H. Slump, Ralph J.B. Sakkers, Roel J.H. Custers.

Journal of Cartilage & Joint Preservation. 2021;1-8

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Comparable Outcomes and Implant Survivorship of Total Knee Arthroplasty After High Tibial Osteotomy and Primary Arthroplasty: A Matched Cohort Study.

Bax EA, Ahmad RA, Clark SC, Custers RJH, Taunton MJ, Sierra RJ, Saris DBF, Hevesi M.

JB JS Open Access. 2026 May 6;11(2):e25.00303

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Hinge Position Dominance Over Osteotomy Inclination in Medial Open-Wedge High Tibial Osteotomy: A Key Factor in Posterior Tibial Slope Changes.

Bax EA, Nguyen HC, van Egmond N, Slump CH, Kruyt MC, Custers RJH, Hekman EEG.

Cartilage. 2025 Jan 21:19476035241311233

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Outcomes After Conversion of High Tibial Osteotomy to Total Knee Arthroplasty: Nearly 14-Year Follow-Up in a United States Population.

Bax EA, Ahmad RA, Kietselaer MA, Clark SC, Custers RJH, Taunton MJ, Sierra RJ, Hevesi M, Saris DBF.

J Arthroplasty. 2025 Dec 19:S0883-5403(25)01582-7

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A structured framework for standardized 3D leg alignment analysis: An international Delphi consensus study.

Veerman QWT, Tuijthof GJM, Verdonschot N, Brouwer RW, Verdonk P, van Haver A, van der Veen HC, Pijpker PAJ, Heuvel JO, Hoogeslag RAG; 3D Leg Alignment Consensus Expert Group.

Knee Surg Sports Traumatol Arthrosc. 2025 Jun;33(6):2276-2292

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Documents

Product & clinical documentation

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