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Ari Petteri Ronkainen
Ph. D. Student, M.Sc.


Junior Researcher


Biomechanics and composition of cartilage

Personal information

  • Phone: +358 040 645076
  • Room: Me/331
  • Email: ari.p.ronkainen@uef.fi

  • Date of birth: 27 April 1990

  • Current research interests: Biomechanical cell responses and changes in cartilage composition due to diseases such as osteoarthritis.

  • Education:
    • Master of Science, Applied Physics, University of Eastern Finland June 2014
    • Bachelor of Science, Physics, University of Eastern Finland June 2013
    • Graduate of Finnish Upper Secondary School, Ilomantsin lukio, June 2009

  • Language proficiency:
    • Finnish, native language
    • English, fluent
    • Swedish, fair

  • Skills:
    • Biomechanical testing
    • Light microscopy, infrared spectroscopy (FTIR)
    • Matlab, basics of C++ and python

  • Awards:
    • Best Master's thesis award from the Finnish Society of Medical Physics & Engineering, February 2015.

  • Hobbies: Frequently Rock climbing (bouldering), other variety of sports every now and then.

Publications:

(full papers, conference proceedings)
  1. Oinas J, Ronkainen AP, Rieppo L, Finnila MAJ, ORCID: http://orcid.org/0000-0002-3348-5759, Iivarinen JT, van Weeren PR, Helminen HJ, Brama PAJ, Korhonen RK and Saarakkala S. Composition, structure and tensile biomechanical properties of equine articular cartilage during growth and maturation. Sci Rep. 2018 Jul 27;8(1):11357. doi: 10.1038/s41598-018-29655-5.

  2. Ojanen SP, ORCID: 0000-0003-4386-0716, Finnila MAJ, Reunamo AE, Ronkainen AP, Mikkonen S, Herzog W, Saarakkala S and Korhonen RK. Site-specific glycosaminoglycan content is better maintained in the pericellular matrix than the extracellular matrix in early post-traumatic osteoarthritis. PLoS One. 2018 Apr 25;13(4):e0196203. doi: 10.1371/journal.pone.0196203.

  3. Han SK, Ronkainen AP, Saarakkala S, Rieppo L, ORCID: http://orcid.org/0000-0001-5542-4060, Herzog W and Korhonen RK. Alterations in structural macromolecules and chondrocyte deformations in lapine retropatellar cartilage 9 weeks after anterior cruciate ligament transection. J Orthop Res. 2018 Jan;36(1):342-350. doi: 10.1002/jor.23650. Epub 2017 Jul 31.

  4. Fick JM, Ronkainen AP, Madden R, Sawatsky A, Tiitu V, Herzog W and Korhonen RK. Early in situ changes in chondrocyte biomechanical responses due to a partial meniscectomy in the lateral compartment of the mature rabbit knee joint. J Biomech. 2016 Dec 8;49(16):4057-4064. doi: 10.1016/j.jbiomech.2016.10.039. Epub

  5. Ronkainen AP, Fick JM, Herzog W and Korhonen RK. Site-specific cell-tissue interactions in rabbit knee joint articular cartilage. J Biomech. 2016 Sep 6;49(13):2882-2890. doi: 10.1016/j.jbiomech.2016.06.033. Epub

  6. Fick JM, Ronkainen AP, Herzog W and Korhonen RK. Site-dependent biomechanical responses of chondrocytes in the rabbit knee joint. J Biomech. 2015 Nov 26;48(15):4010-9. doi: 10.1016/j.jbiomech.2015.09.049. Epub

  1. Fick JM, Ronkainen AP, Herzog W, Korhonen RK. In Situ Site-specific Determination of Chondrocyte Responses to Deformation in a Mature Rabbit Knee Joint. Transactions of the Orthopaedic Research Society, New Orleans, LA, 39:191, 2014.

  2. Ronkainen AP, Fick JM, Herzog W, Korhonen RK. Site-specific changes in cell biomechanics and cartilage composition in mature rabbit knee joints 3 days after a partial meniscectomy. 21st Congress of the European Society of Biomechanics, Chech Republic, Prague, 2015. (Oral Presentation)

  3. Ronkainen AP, Fick JM, Herzog W, Korhonen RK. Collagen content in the Cartilage Matrix Controls Chondrocyte Deformation in Mechanically Loaded Healthy Tissue. Transactions of the Orthopaedic Research Society, Orlando, FL, 41:492, 2016.

  4. Ronkainen AP, Reunamo A, Fick JM, Herzog W, Korhonen RK, Changes in the Local Proteoglycan Content of the Pericellular Matrix are Highly Site-Specific and Related to Cell Deformation Behavior 3 Days after a Partial Meniscectomy in the Rabbit Knee Joint. Transactions of the Orthopaedic Research Society, Orlando, FL, 41:475, 2016.

Contact: +358 29 4451111 (Switch), email: bbc-l [at] lists.uef.fi