Systematic Comparison of Polyethylene and Metallic Alloy Pairings in Knee Arthroplasty: A Biomechanical and Tribological Assessment
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Wiley
2026
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| _version_ | 1867006866725273600 |
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| author | Deepak Kumar Rina Maiti |
| author_facet | Deepak Kumar Rina Maiti Deepak Kumar Rina Maiti |
| collection | Wiley Open Access |
| contents | Systematic Comparison of Polyethylene and Metallic Alloy Pairings in Knee Arthroplasty: A Biomechanical and Tribological Assessment Deepak Kumar Rina Maiti Advanced Theory and Simulations ABSTRACT Long‐term TKA outcomes depend on the biomechanical compatibility and tribological behaviour of articulating materials. This study systematically compared femoral alloy‐polyethylene pairings to identify optimal combinations that balance wear resistance, mechanical integrity, and biocompatibility for durable implant performance. Nine femoral‐tibial couples were modelled by pairing UHMWPE, HXLPE, and VE‐HXLPE inserts with Co‐Cr‐Mo, Ti‐6Al‐4V, and Oxinium femoral components. Finite element analysis quantified contact mechanics, wear/oxidation propensity, elastic‐Poisson mismatch, surface hardness, and biocompatibility. Finite element predictions showed a strong polyethylene‐dependent response. VE‐HXLPE produced the lowest wear depths (0.0355–0.0357 mm/10 6 cycles) despite higher peak contact stresses (∼111 MPa), whereas UHMWPE exhibited markedly higher wear (∼0.152 mm/10 6 cycles). MPI ranked Ti‐6Al‐4V + VE‐HXLPE highest (152.24), followed by Oxinium + VE‐HXLPE (151.31) and Co‐Cr‐Mo + VE‐HXLPE (150.81); HXLPE was intermediate and UHMWPE consistently lowest. Deformation inversely followed stress (femoral component ∼0.026 mm; PE 2.52 × 10 − 3 –2.76 × 10 − 3 mm; tibial tray 4.1 × 10 − 4 –4.6 × 10 − 4 mm), with Oxinium reducing concentration. VE‐HXLPE paired with surface‐hardened femoral component materials improves tribological durability and structural stability, supporting longer implant life. Oxinium‐VE‐HXLPE may reduce wear‐driven osteolysis, while Co‐Cr‐Mo‐VE‐HXLPE remains a reliable benchmark. Findings guide material selection, optimisation, and preclinical design screening. 10.1002/adts.70421 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/adts.70421 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_adts_70421 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Systematic Comparison of Polyethylene and Metallic Alloy Pairings in Knee Arthroplasty: A Biomechanical and Tribological Assessment Deepak Kumar Rina Maiti Advanced Theory and Simulations Systematic Comparison of Polyethylene and Metallic Alloy Pairings in Knee Arthroplasty: A Biomechanical and Tribological Assessment Deepak Kumar Rina Maiti Advanced Theory and Simulations ABSTRACT Long‐term TKA outcomes depend on the biomechanical compatibility and tribological behaviour of articulating materials. This study systematically compared femoral alloy‐polyethylene pairings to identify optimal combinations that balance wear resistance, mechanical integrity, and biocompatibility for durable implant performance. Nine femoral‐tibial couples were modelled by pairing UHMWPE, HXLPE, and VE‐HXLPE inserts with Co‐Cr‐Mo, Ti‐6Al‐4V, and Oxinium femoral components. Finite element analysis quantified contact mechanics, wear/oxidation propensity, elastic‐Poisson mismatch, surface hardness, and biocompatibility. Finite element predictions showed a strong polyethylene‐dependent response. VE‐HXLPE produced the lowest wear depths (0.0355–0.0357 mm/10 6 cycles) despite higher peak contact stresses (∼111 MPa), whereas UHMWPE exhibited markedly higher wear (∼0.152 mm/10 6 cycles). MPI ranked Ti‐6Al‐4V + VE‐HXLPE highest (152.24), followed by Oxinium + VE‐HXLPE (151.31) and Co‐Cr‐Mo + VE‐HXLPE (150.81); HXLPE was intermediate and UHMWPE consistently lowest. Deformation inversely followed stress (femoral component ∼0.026 mm; PE 2.52 × 10 − 3 –2.76 × 10 − 3 mm; tibial tray 4.1 × 10 − 4 –4.6 × 10 − 4 mm), with Oxinium reducing concentration. VE‐HXLPE paired with surface‐hardened femoral component materials improves tribological durability and structural stability, supporting longer implant life. Oxinium‐VE‐HXLPE may reduce wear‐driven osteolysis, while Co‐Cr‐Mo‐VE‐HXLPE remains a reliable benchmark. Findings guide material selection, optimisation, and preclinical design screening. 10.1002/adts.70421 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Systematic Comparison of Polyethylene and Metallic Alloy Pairings in Knee Arthroplasty: A Biomechanical and Tribological Assessment |
| topic | Advanced Theory and Simulations |
| url | https://advanced.onlinelibrary.wiley.com/doi/10.1002/adts.70421 |