Abstract
Purpose
The purpose of this study was to describe the longitudinal outcomes of acute repair and augmentation for the reconstruction of dislocated knees, using LARS synthetic ligaments.
Methods
Patients with a knee dislocation surgically treated using LARS synthetic ligament augmentation, with a minimum follow-up of 24 months, were enrolled between 1996 and 2014. Range of motion, Lachman, pivot shift, posterior drawer, step off sign, valgus, varus, KT-1000 arthrometer, Telos technique, IKDC, Lysholm, Tegner, and Meyers scores were obtained every 2 years up to 10 years.
Results
Median age was 32.1 years (IQR 23.2–43.3) at time of surgery. Median time from trauma to surgery was 9 days and mean follow-up time was 6.6 years. Median questionnaire scores were: Lysholm 79.5 (IQR 65.0–89.0), Tegner 4.0 (IQR 3.7–6.0), Meyers 3.0 (IQR 3.0–4.0), and mean IKDC was 63.8 (SD 18.9). Median flexion and extension of the injured knee was 124° (IQR 115–129.5) and 0° (IQR − 5 to 0), respectively. Median KT-1000 differential was 0.7 mm (IQR 0.1–3.1) for ACL and 0.9 mm (IQR 0.2–1.4) for PCL. Mean differential for Telos was 2.5 mm (SD 5.8) for ACL, 4 mm (IQR 2–6.3) for PCL 30°, and 8.2 mm (SD 4.4) for PCL 90° (consistent with PCL laxity). More than 90% of patients had good anterior articular stability and > 60% of patients had good posterior articular stability.
Conclusions
Acute repair and augmentation of knee dislocations with LARS synthetic ligaments resulted in satisfactory outcomes for the ACL and collateral structures. Telos stress radiography showed PCL laxity in more than half of cases despite low laxity results with KT-1000. The perception of patients about knee function was sustained in time.
Level of evidence
IV.
Similar content being viewed by others
References
Angelini FJ, Helito CP, Bonadio MB, da Mota EARF, Pecora JR, Camanho GL (2015) Surgical management of knee dislocations with ligament reconstruction associated with a hinged external fixator. Orthop Traumatol Surg Res 101:77–81
Chahla J, Moatshe G, Cinque ME, Dornan GJ, Mitchell JJ, Ridley TJ, LaPrade RF (2017) Single-bundle and double-bundle posterior cruciate ligament reconstructions: a systematic review and meta-analysis of 441 patients at a minimum 2 years’ follow-up. Arthroscopy 33:2066–2080
Chen J, Gu A, Jiang H, Zhang W, Yu X (2015) A comparison of acute and chronic anterior cruciate ligament reconstruction using LARS artificial ligaments: a randomized prospective study with a 5-year follow-up. Arch Orthop Trauma Surg 135:95–102
Collins NJ, Misra D, Felson DT, Crossley KM, Roos EM (2011) Measures of knee function: International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, Knee Injury and Osteoarthritis Outcome Score (KOOS), Knee Injury and Osteoarthritis Outcome Score Physical Function Short Form (KOOS-PS), Knee Outcome Survey Activities of Daily Living Scale (KOS-ADL), Lysholm Knee Scoring Scale, Oxford Knee Score (OKS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Activity Rating Scale (ARS), and Tegner Activity Score (TAS). Arthritis Care Res (Hoboken) 63(Suppl 11):S208–28
Darabos N, Gusic N, Vlahovic T, Darabos A, Popovic I, Vlahovic I (2013) Staged management of knee dislocation in polytrauma injured patients. Injury 44(Suppl 3):S40-45
Edwards GA, Sarasin SM, Davies AP (2013) Dislocation of the knee: an epidemic in waiting? J Emerg Med 44:68–71
Engebretsen L, Risberg MA, Robertson B, Ludvigsen TC, Johansen S (2009) Outcome after knee dislocations: a 2–9 years follow-up of 85 consecutive patients. Knee Surg sports Traumatol Arthrosc Off J ESSKA 17:1013–1026
Fanelli GC (2011) Multiple ligament-injured (dislocated) knee. Sports Med Arthrosc Rev 19:81
Fanelli GC, Sousa PL, Edson CJ (2014) Long-term followup of surgically treated knee dislocations: stability restored, but arthritis is common. Clin Orthop Relat Res 472:2712–2717
Gao K, Chen S, Wang L, Zhang W, Kang Y, Dong Q, Zhou H, Li L (2010) Anterior cruciate ligament reconstruction with LARS artificial ligament: a multicenter study with 3- to 5-year follow-up. Arthrosc J Arthrosc Relat Surg Off Publ Arthrosc Assoc N Am Int Arthrosc Assoc 26:515–523
Gliatis J, Anagnostou K, Tsoumpos P, Billis E, Papandreou M, Plessas S (2018) Complex knee injuries treated in acute phase: long-term results using ligament augmentation and reconstruction system artificial ligament. World J Orthop 9:24–34
Hirschmann MT, Zimmermann N, Rychen T, Candrian C, Hudetz D, Lorez LG, Amsler F, Muller W, Friederich NF (2010) Clinical and radiological outcomes after management of traumatic knee dislocation by open single stage complete reconstruction/repair. BMC Musculoskelet Disord 11:102
Hongwu Z, Li J (2018) One-stage arthroscopic reduction combined with multiligament reconstruction or repair for irreducible posterolateral knee dislocation: a retrospective case series with minimum 2-year follow-up. J Knee Surg. https://doi.org/10.1055/s-0038-1632394
Howells NR, Brunton LR, Robinson J, Porteus AJ, Eldridge JD, Murray JR (2011) Acute knee dislocation: an evidence based approach to the management of the multiligament injured knee. Injury 42:1198–1204
Ibrahim SA, Ahmad FH, Salah M, Al Misfer AR, Ghaffer SA, Khirat S (2008) Surgical management of traumatic knee dislocation. Arthrosc J Arthrosc Relat Surg Off Publ Arthrosc Assoc N Am Int Arthrosc Assoc 24:178–187
Ibrahim SA, Ghafar S, Salah M, Abo Alnas M, Al Misfer A, Farouk H, Al Haran H, Khirait S (2013) Surgical management of traumatic knee dislocation with posterolateral corner injury. Arthroscopy 29:733–741
Jiang W, Yao J, He Y, Sun W, Huang Y, Kong D (2015) The timing of surgical treatment of knee dislocations: a systematic review. Knee Surg Sports Traumatol Arthrosc 23:3108–3113
Kellgren JH, Lawrence JS (1957) Radiological assessment of osteo-arthrosis. Ann Rheum Dis 16:494–502
Khakha RS, Day AC, Gibbs J, Allen S, Hill P, Hull J, Perry A, Chissell H (2016) Acute surgical management of traumatic knee dislocations—average follow-up of 10 years. Knee 23:267–275
Kohl S, Stock A, Ahmad SS, Zumstein M, Keel M, Exadaktylos A, Kohlhof H, Eggli S, Evangelopoulos DS (2015) Dynamic intraligamentary stabilization and primary repair: a new concept for the treatment of knee dislocation. Injury 46:724–728
Levy BA, Dajani KA, Morgan JA, Shah JP, Dahm DL, Stuart MJ (2010) Repair versus reconstruction of the fibular collateral ligament and posterolateral corner in the multiligament-injured knee. Am J Sports Med 38:804–809
Levy BA, Dajani KA, Whelan DB, Stannard JP, Fanelli GC, Stuart MJ, Boyd JL, MacDonald PA, Marx RG (2009) Decision making in the multiligament-injured knee: an evidence-based systematic review. Arthrosc J Arthrosc Relat Surg Off Publ Arthrosc Assoc N Am Int Arthrosc Assoc 25:430–438
Li B, Wen Y, Wu H, Qian Q, Wu Y, Lin X (2009) Arthroscopic single-bundle posterior cruciate ligament reconstruction: retrospective review of hamstring tendon graft versus LARS artificial ligament. Int Orthop 33:991–996
Liu ZT, Zhang XL, Jiang Y, Zeng BF (2010) Four-strand hamstring tendon autograft versus LARS artificial ligament for anterior cruciate ligament reconstruction. Int Orthop 34:45–49
Marcacci M, Zaffagnini S, Bonanzinga T, Pizzoli A, Manca M, Caiaffa E (2012) Surgical technique: articulated external fixator for treatment of complex knee dislocation. Clin Orthop Rel Res 470:869–876
Mascarenhas R, MacDonald PB (2008) Anterior cruciate ligament reconstruction: a look at prosthetics—past, present and possible future. McGill J Med MJM Int Forum Adv Med Sci Stud 11:29–37
McCarthy M, Camarda L, Wijdicks CA, Johansen S, Engebretsen L, Laprade RF (2010) Anatomic posterolateral knee reconstructions require a popliteofibular ligament reconstruction through a tibial tunnel. Am J Sports Med 38:1674–1681
McKee L, Ibrahim MS, Lawrence T, Pengas IP, Khan WS (2014) Current concepts in acute knee dislocation: the missed diagnosis? Open Orthop J 8:162–167
Meyers MH, Moore TM, Harvey JP Jr (1975) Traumatic dislocation of the knee joint. J Bone Jt Surg Am 57:430–433
Moatshe G, Dornan GJ, Ludvigsen T, Loken S, LaPrade RF, Engebretsen L (2017) High prevalence of knee osteoarthritis at a minimum 10-year follow-up after knee dislocation surgery. Knee Surg Sports Traumatol Arthrosc 25:3914–3922
Owens BD, Neault M, Benson E, Busconi BD (2007) Primary repair of knee dislocations: results in 25 patients (28 knees) at a mean follow-up of four years. J Orthop Trauma 21:92–96
Pugh L, Mascarenhas R, Arneja S, Chin PY, Leith JM (2009) Current concepts in instrumented knee-laxity testing. Am J Sports Med 37:199–210
Schenck RC Jr (1994) The dislocated knee. Instr Course Lect 43:127–136
Serra Cruz R, Mitchell JJ, Dean CS, Chahla J, Moatshe G, LaPrade RF (2016) Anatomic posterolateral corner reconstruction. Arthrosc Tech 5:e563-572
Smith C, Ajuied A, Wong F, Norris M, Back D, Davies A (2014) The use of the ligament augmentation and reconstruction system (LARS) for posterior cruciate reconstruction. Arthrosc J Arthrosc Relat Surg Off Publ Arthrosc Assoc N Am Int Arthrosc Assoc 30:111–120
Spiridonov SI, Slinkard NJ, LaPrade RF (2011) Isolated and combined grade-III posterior cruciate ligament tears treated with double-bundle reconstruction with use of endoscopically placed femoral tunnels and grafts: operative technique and clinical outcomes. J Bone Jt Surg Am 93:1773–1780
Stannard JP, Brown SL, Farris RC, McGwin G Jr, Volgas DA (2005) The posterolateral corner of the knee: repair versus reconstruction. Am J Sports Med 33:881–888
Subbiah M, Pandey V, Rao SK, Rao S (2011) Staged arthroscopic reconstructive surgery for multiple ligament injuries of the knee. J Orthop Surg (Hong Kong) 19:297–302
Tao J, Li X, Zhou Z, Zhu Z (2013) Acute single-stage reconstruction of multiligament knee injuries using the ligament advanced reinforcement system. Med Princ Pract 22:373–378
Woodmass JM, Johnson NR, Mohan R, Krych AJ, Levy BA, Stuart MJ (2017) Poly-traumatic multi-ligament knee injuries: is the knee the limiting factor? Knee Surg Sports Traumatol Arthrosc. https://doi.org/10.1007/s00167-017-4784-3
Acknowledgements
We would like to thank Dr. Fernando Rosa for his precious contribution to manuscript redaction, Mr. David Yin for his help with language form, and Dr. Alexandre Renaud for his help in the development of this project.
Funding
Dr. Pierre Ranger reports grants from Johnson & Johnson, support as a consultant from Smith & Nephew, Corin, Bioventus, Sanofi Canada, and support for development of educational presentations by Horizon Pharma outside of the conducted work. Josée Delisle also reports support for personal fees from Amgen Canada and Eli Lilly outside of the conducted work.
Author information
Authors and Affiliations
Contributions
PR is the principle investigator of this study, thus contributing to all aspects of it; conception and design, protocol redaction, ethics approval, patient recruitment, data acquisition, interpretation of data, and drafting and revision of manuscript. AS contributed substantially to literature review, data collection by recruiting patients, organising follow-up visits, data entry, performing data analysis, and manuscript redaction. GRG has been in charge of database development, organization of clinics and patients’ follow-up for 2 years, and has contributed to manuscript redaction and revision. ML has contributed to conception of the study in terms of functional assessments, and has proceeded to all functional evaluations of patients during clinics over the study period and to the revision of the manuscript. JD, as the study coordinator, has contributed substantially to conception, design, literature review, protocol redaction, ethics approval, research team schedule, study planning, and manuscript revision.
Corresponding author
Ethics declarations
Conflict of interest
All authors declare that they have no conflict of interest.
Ethical approval
This study was approved by the Hôpital du Sacré-Coeur de Montréal ethic research committee in Montréal, Québec, Canada (IRB #2008-03-116; 2010 − 285). All procedures performed in this study were in accordance with the ethical standards of the hospital’s ethic research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent
All subjects provided informed consent.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Ranger, P., Senay, A., Gratton, G.R. et al. LARS synthetic ligaments for the acute management of 111 acute knee dislocations: effective surgical treatment for most ligaments. Knee Surg Sports Traumatol Arthrosc 26, 3673–3681 (2018). https://doi.org/10.1007/s00167-018-4940-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00167-018-4940-4