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Aghyarian S, Bentley E, Hoang TN, Gindri IM, Kosmopoulos V, Kim HKW, C. Rodrigues D. In Vitro and In Vivo Characterization of Premixed PMMA-CaP Composite Bone Cements. ACS Biomater Sci Eng 2017; 3:2267-2277. [DOI: 10.1021/acsbiomaterials.7b00276] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shant Aghyarian
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Elizabeth Bentley
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Thao N. Hoang
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Izabelle M. Gindri
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Victor Kosmopoulos
- Department
of Orthopaedic Surgery, University of North Texas Health Science Center (UNTHSC), Fort Worth, Texas 76107, United States
- Department
of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Harry K. W. Kim
- Center
for Excellence in Hip Disorders, Texas Scottish Rite Hospital for Children, 2222 Welborn Street, Dallas, Texas 75219, United States
- Department
of Orthopaedic Surgery, UT Southwestern Medical Center, Dallas, Texas 75390, United States
| | - Danieli C. Rodrigues
- Biomaterials
for Osseointegration and Novel Engineering Laboratory (BONE Lab),
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas 75080, United States
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Fölsch C, Kellotat A, Rickert M, Ishaque B, Ahmed G, Pruss A, Jahnke A. Effect of thermodisinfection on mechanic parameters of cancellous bone. Cell Tissue Bank 2016; 17:427-37. [PMID: 27344440 DOI: 10.1007/s10561-016-9567-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 06/17/2016] [Indexed: 11/24/2022]
Abstract
Revision surgery of joint replacements is increasing and raises the demand for allograft bone since restoration of bone stock is crucial for longevity of implants. Proceedings of bone grafts influence the biological and mechanic properties differently. This study examines the effect of thermodisinfection on mechanic properties of cancellous bone. Bone cylinders from both femoral heads with length 45 mm were taken from twenty-three 6-8 months-old piglets, thermodisinfected at 82.5 °C according to bone bank guidelines and control remained native. The specimens were stored at -20 °C immediately and were put into 21 °C Ringer's solution for 3 h before testing. Shear and pressure modulus were tested since three point bending force was examined until destruction. Statistical analysis was done with non-parametric Wilcoxon, t test and SPSS since p < 0.05 was significant. Shear modulus was significantly reduced by thermodisinfection to 1.02 ± 0.31 GPa from 1.28 ± 0.68 GPa for unprocessed cancellous bone (p = 0.029) since thermodisinfection reduced pressure modulus not significantly from 6.30 ± 4.72 GPa for native specimens to 4.97 ± 2.23 GPa and maximum bending force was 270.03 ± 116.68 N for native and 228.80 ± 70.49 N for thermodisinfected cancellous bone. Shear and pressure modulus were reduced by thermodisinfection around 20 % and maximum bending force was impaired by about 15 % compared with native cancellous bone since only the reduction of shear modulus reached significance. The results suggest that thermodisinfection similarly affects different mechanic properties of cancellous bone and the reduction of mechanic properties should not relevantly impair clinical use of thermodisinfected cancellous bone.
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Affiliation(s)
- Christian Fölsch
- Department of Orthopaedic Surgery, Justus-Liebig-University Medical School, Justus-Liebig-University Giessen, Klinikstrasse 33, 35392, Giessen, Germany.
| | - Andreas Kellotat
- Laboratory of Biomechanics, Department of Orthopaedic Surgery, Justus-Liebig-University Medical School, Justus-Liebig-University Giessen, Paul-Meimberg-Strasse 3, 35392, Giessen, Germany
| | - Markus Rickert
- Department of Orthopaedic Surgery, Justus-Liebig-University Medical School, Justus-Liebig-University Giessen, Klinikstrasse 33, 35392, Giessen, Germany
| | - Bernd Ishaque
- Department of Orthopaedic Surgery, Justus-Liebig-University Medical School, Justus-Liebig-University Giessen, Klinikstrasse 33, 35392, Giessen, Germany
| | - Gafar Ahmed
- Department of Orthopaedic Surgery, Justus-Liebig-University Medical School, Justus-Liebig-University Giessen, Klinikstrasse 33, 35392, Giessen, Germany
| | - Axel Pruss
- University Tissue Bank, Institute of Transfusion Medicine, Charité University Medical School, Charitéplatz 1, 10117, Berlin, Germany
| | - Alexander Jahnke
- Laboratory of Biomechanics, Department of Orthopaedic Surgery, Justus-Liebig-University Medical School, Justus-Liebig-University Giessen, Paul-Meimberg-Strasse 3, 35392, Giessen, Germany
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