dc.contributor.author | Engseth, Lars | |
dc.contributor.author | Grønsund, Jørgen | |
dc.contributor.author | Aunan, Eirik | |
dc.contributor.author | Brattgjerd, Jan Egil | |
dc.contributor.author | Schulz, Anselm | |
dc.contributor.author | Moatshe, Gilbert | |
dc.contributor.author | Röhrl, Stephan Maximilian Herbert | |
dc.date.accessioned | 2023-12-11T08:02:57Z | |
dc.date.available | 2023-12-11T08:02:57Z | |
dc.date.created | 2023-10-06T11:13:37Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Journal of Experimental Orthopaedics. 2023, 10 (1), . | en_US |
dc.identifier.issn | 2197-1153 | |
dc.identifier.uri | https://hdl.handle.net/11250/3106773 | |
dc.description.abstract | Purpose: Ligament balancing is a prerequisite for good function and survival in total knee arthroplasty (TKA). Various balancing techniques exist, but none have shown superior results. The pie-crusting technique by Bellemans of the medial collateral ligament is commonly utilized; however, it can be difficult to achieve repeatable ligament lengthening with this technique. Therefore, we invented a novel instrument to standardize the pie-crusting technique of the superficial and deep medial collateral ligament (hereafter MCL). The purpose was to examine if pie-crusting with the instrument could produce repeatable ligament lengthening. Methods: The MCL was isolated in 16 human cadaveric knees, and subjected to axial tension. The instrument was composed of a specific grid of holes in rows, used to guide sequential pie-crusting puncturing of the MCL with a Ø1.6 mm end-cutting cannula. Ligament lengthening was measured after each row of punctures. Regression analysis was performed on the results. Results: Mean lengthening ± SD in human cadaveric MCL for puncturing of row 1 in the instrument was 0.06 ± 0.09 mm, 0.06 ± 0.04 mm for row 2, 0.09 ± 0.08 mm for row 3, 0.06 ± 0.05 mm for row 4 and 0.06 ± 0.04 mm for row 5, giving a mean total lengthening of 0.33 ± 0.20 mm. Linear regression revealed that MCLs were repeatably lengthened by 0.07 mm per row when punctured using the instrument. Conclusions: MCLs showed linear lengthening in human cadavers for subsequent use of the instrument. Our instrument shows promising results for repeatable ligament lengthening. | en_US |
dc.language.iso | eng | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | A novel instrument for ligament balancing: a biomechanical study in human cadaveric knees | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.doi | 10.1186/s40634-023-00643-7 | |
dc.identifier.cristin | 2182392 | |
dc.source.journal | Journal of Experimental Orthopaedics | en_US |
dc.source.volume | 10 | en_US |
dc.source.issue | 1 | en_US |
dc.source.pagenumber | 8 | en_US |