Bioabsorbable Unsintered Hydroxyapatite/Poly-l-Lactic Acid Pin Fixation of Osteochondritis Dissecans in Adolescents: Initial Experiences

Zeilinger MG, Autenrieth C, Remmel K, Schuh A, Hammon M, Schraml A, Uder M, Rompel O (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Zeitschrift für Orthopädie und Unfallchirurgie Thieme

DOI: 10.1055/a-1289-0733

Abstract

Background This study sought to retrospectively evaluate the clinical and magnetic resonance imaging (MRI) outcomes of u-HA/PLLA pin (u-HA/PLLA: hydroxyapatite/poly-L-lactic acid) pin fixation of unstable osteochondritis dissecans (OCD) lesions of the knee. Methods Seven adolescent patients (four females and three males) with arthroscopically unstable OCD lesions of the knee were included. The mean age at diagnosis was 13.1 years. Clinical results were evaluated preoperatively and during follow-up using the Ogilvie-Harris score (0-15 points). MRI scans were performed preoperatively and during follow-up, with results evaluated using the Dipaola classification (grades 1-4). Mean follow-up time was 29 months. Results The median Ogilvie-Harris score improved from 13 points (range: 10-14 points) to 15 points (range: 13-15 points). Separately, the median Dipaola score improved from 3 points (range: 2-4 points) to 1 point (range: 1-4 points). No complications such as infection, synovitis, or intra-articular adhesion were observed. Conclusions Initial experiences using bioabsorbable u-HA/PLLA pins for the refixation of unstable OCD lesions in adolescents in the knee are promising, and MRI provides excellent monitoring of healing.

Authors with CRIS profile

Matthias Hammon Institute of Radiology Michael Uder Lehrstuhl für Diagnostische Radiologie Oliver Rompel Medizinische Fakultät

Involved external institutions

Cnopf'sche Kinderklinik DE Germany (DE) Klinikum Bayreuth DE Germany (DE) Kliniken des Landkreises Neumarkt i.d.OPf. DE Germany (DE)

How to cite

APA:

Zeilinger, M.G., Autenrieth, C., Remmel, K., Schuh, A., Hammon, M., Schraml, A.,... Rompel, O. (2020). Bioabsorbable Unsintered Hydroxyapatite/Poly-l-Lactic Acid Pin Fixation of Osteochondritis Dissecans in Adolescents: Initial Experiences. Zeitschrift für Orthopädie und Unfallchirurgie. https://doi.org/10.1055/a-1289-0733

MLA:

Zeilinger, Martin Georg, et al. "Bioabsorbable Unsintered Hydroxyapatite/Poly-l-Lactic Acid Pin Fixation of Osteochondritis Dissecans in Adolescents: Initial Experiences." Zeitschrift für Orthopädie und Unfallchirurgie (2020).

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