Computer-assisted arthroplasty using bioengineered autografts

Sidler, Rudolf; Gonzalez Ballester, Miguel Á.; Bonél, Harald Marcel; Styner, Martin; Bardyn, Thibaut; Nolte, Lutz-Peter; Südkamp, Norbert Paul; Köstler, Wolfgang (2006). Computer-assisted arthroplasty using bioengineered autografts. IEEE engineering in medicine and biology magazine, 25(4), pp. 63-69. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/MEMB.2006.1657789

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Recent advances in tissue-engineered cartilage open the door to new clinical treatments of joint lesions. Common to all therapies with in-vitro-engineered autografts is the need for optimal fit of the construct to allow screwless implantation and optimal integration into the live joint. Computer-assisted surgery (CAS) techniques are prime candidates to ensure the required accuracy, while at the same time simplifying the procedure. A pilot study has been conducted aiming at assembling a new set of methods to support ankle joint arthroplasty using bioengineered autografts. Computer assistance allows planning of the implant shape on a computed tomography (CT) image, manufacturing the construct according to the plan, and interoperatively navigating the surgical tools for implantation. A rotational symmetric model of the joint surface was used to avoid segmentation of the CT image; new software was developed to determine the joint axis and make the implant shape parameterizable. A complete cycle of treatment from planning to operation was conducted on a human cadaveric foot, thus proving the feasibility of computer-assisted arthroplasty using bioengineered autografts

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Journal Article (Original Article)


04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued]
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology

UniBE Contributor:

Sidler, Rudolf, Gonzalez Ballester, Miguel Angel, Bonel, Harald Marcel, Bardyn, Thibaut, Nolte, Lutz-Peter






Institute of Electrical and Electronics Engineers IEEE




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Date Deposited:

04 Oct 2013 14:49

Last Modified:

05 Dec 2022 14:15

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URI: (FactScience: 3952)

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