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The role of suture cutout in the failure of meniscal root repair during the early post-operative period: a biomechanical study.
Int Orthop. 2018 04; 42(4):811-818.IO

Abstract

PURPOSE

To assess the role of suture cutout in the mechanics of failure of the repaired posterior meniscal root during the early post-operative period when using sutures of different shape.

METHODS

Twenty medial porcine menisci were randomized in two groups depending on the suture shape used to repair the posterior root: thread or tape. The sutured menisci were subjected to cyclic loading (1000 cycles, (10, 30) N) followed by load-to-failure testing. Residual displacements, stiffness, and ultimate failure load were determined. During tests, the tissue-suture interface was recorded using a high-resolution camera.

RESULTS

In cyclic tests, cutout progression at the suture insertion points was not observed for any specimen of either group and no differences in residual displacements were found between use of thread or tape. In load-to-failure tests, suture cutout started in all menisci at a load close to the ultimate failure and all specimens failed by suture pullout. Suture tape had a greater ultimate load with no other differences.

CONCLUSIONS

In a porcine model of a repaired posterior meniscal root subjected to cyclic loads representative of current rehabilitation protocols in the early post-operative period under restricted loading conditions, suture cutout was not found as a main source of permanent root displacement when using suture thread or tape. Suture cutout progression started at high loading levels close to the ultimate load of the construct. Tape, with a meniscus-suture contact area larger than thread, produced higher ultimate load.

Authors+Show Affiliations

Andalucía Tech, Laboratorio de Biomecánica, Departamento de Ingeniería Mecánica, Universidad de Málaga, C/ Pedro Ortiz Ramos, s/n., Málaga, 29071, Spain. anaperez@uma.es.Andalucía Tech, Laboratorio de Biomecánica, Departamento de Ingeniería Mecánica, Universidad de Málaga, C/ Pedro Ortiz Ramos, s/n., Málaga, 29071, Spain.Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Virgen de la Victoria, Málaga, Spain.Hospital Vithas Parque San Antonio, Málaga, Spain.Andalucía Tech, Laboratorio de Biomecánica, Departamento de Ingeniería Mecánica, Universidad de Málaga, C/ Pedro Ortiz Ramos, s/n., Málaga, 29071, Spain.Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario Virgen de la Victoria, Málaga, Spain. Hospital Vithas Parque San Antonio, Málaga, Spain.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29396804

Citation

Perez-Blanca, Ana, et al. "The Role of Suture Cutout in the Failure of Meniscal Root Repair During the Early Post-operative Period: a Biomechanical Study." International Orthopaedics, vol. 42, no. 4, 2018, pp. 811-818.
Perez-Blanca A, Prado Nóvoa M, Lombardo Torre M, et al. The role of suture cutout in the failure of meniscal root repair during the early post-operative period: a biomechanical study. Int Orthop. 2018;42(4):811-818.
Perez-Blanca, A., Prado Nóvoa, M., Lombardo Torre, M., Espejo-Reina, A., Ezquerro Juanco, F., & Espejo-Baena, A. (2018). The role of suture cutout in the failure of meniscal root repair during the early post-operative period: a biomechanical study. International Orthopaedics, 42(4), 811-818. https://doi.org/10.1007/s00264-018-3799-9
Perez-Blanca A, et al. The Role of Suture Cutout in the Failure of Meniscal Root Repair During the Early Post-operative Period: a Biomechanical Study. Int Orthop. 2018;42(4):811-818. PubMed PMID: 29396804.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The role of suture cutout in the failure of meniscal root repair during the early post-operative period: a biomechanical study. AU - Perez-Blanca,Ana, AU - Prado Nóvoa,María, AU - Lombardo Torre,Maximiano, AU - Espejo-Reina,Alejandro, AU - Ezquerro Juanco,Francisco, AU - Espejo-Baena,Alejandro, Y1 - 2018/02/02/ PY - 2017/10/27/received PY - 2018/01/22/accepted PY - 2018/2/6/pubmed PY - 2019/2/2/medline PY - 2018/2/4/entrez KW - Meniscal root tear KW - Meniscus-suture interface KW - Permanent displacement KW - Suture cutout KW - Transtibial pullout repair SP - 811 EP - 818 JF - International orthopaedics JO - Int Orthop VL - 42 IS - 4 N2 - PURPOSE: To assess the role of suture cutout in the mechanics of failure of the repaired posterior meniscal root during the early post-operative period when using sutures of different shape. METHODS: Twenty medial porcine menisci were randomized in two groups depending on the suture shape used to repair the posterior root: thread or tape. The sutured menisci were subjected to cyclic loading (1000 cycles, (10, 30) N) followed by load-to-failure testing. Residual displacements, stiffness, and ultimate failure load were determined. During tests, the tissue-suture interface was recorded using a high-resolution camera. RESULTS: In cyclic tests, cutout progression at the suture insertion points was not observed for any specimen of either group and no differences in residual displacements were found between use of thread or tape. In load-to-failure tests, suture cutout started in all menisci at a load close to the ultimate failure and all specimens failed by suture pullout. Suture tape had a greater ultimate load with no other differences. CONCLUSIONS: In a porcine model of a repaired posterior meniscal root subjected to cyclic loads representative of current rehabilitation protocols in the early post-operative period under restricted loading conditions, suture cutout was not found as a main source of permanent root displacement when using suture thread or tape. Suture cutout progression started at high loading levels close to the ultimate load of the construct. Tape, with a meniscus-suture contact area larger than thread, produced higher ultimate load. SN - 1432-5195 UR - https://www.unboundmedicine.com/medline/citation/29396804/The_role_of_suture_cutout_in_the_failure_of_meniscal_root_repair_during_the_early_post_operative_period:_a_biomechanical_study_ L2 - https://dx.doi.org/10.1007/s00264-018-3799-9 DB - PRIME DP - Unbound Medicine ER -