Skip to main content
Top
Published in: Knee Surgery, Sports Traumatology, Arthroscopy 4/2020

01-04-2020 | KNEE

ACL reconstruction with adjustable-length loop cortical button fixation results in less tibial tunnel widening compared with interference screw fixation

Authors: Raul Mayr, Vinzenz Smekal, Christian Koidl, Christian Coppola, Martin Eichinger, Ansgar Rudisch, Christof Kranewitter, René Attal

Published in: Knee Surgery, Sports Traumatology, Arthroscopy | Issue 4/2020

Login to get access

Abstract

Purpose

To compare tunnel widening and clinical outcome after anterior cruciate ligament reconstruction (ACLR) with interference screw fixation and all-inside reconstruction using button fixation.

Methods

Tunnel widening was assessed using tunnel volume and diameter measurements on computed tomography (CT) scans after surgery and 6 months and 2 years later, and compared between the two groups. The clinical outcome was assessed after 2 years with instrumented tibial anteroposterior translation measurements, hop testing and International Knee Documentation Committee (IKDC), Lysholm and Tegner activity scores.

Results

The study population at the final follow-up was 14 patients with screw fixation and 16 patients with button fixation. Tibial tunnels with screw fixation showed significantly larger increase in tunnel volume over time (P = 0.021) and larger tunnel diameters after 2 years in comparison with button fixation (P < 0.001). There were no significant differences in femoral tunnel volume changes over time or in tunnel diameters after 2 years. No significant differences were found in the clinical outcome scores.

Conclusions

All-inside ACLR using button fixation was associated with less tibial tunnel widening and smaller tunnels after 2 years in comparison with ACLR using screw fixation. The need for staged revision ACLRs may be greater with interference screws in comparison with button fixation at the tibial tunnel. The clinical outcomes in the two groups were comparable.

Level of evidence

II.
RCT: Consort NCT01755819.
Appendix
Available only for authorised users
Literature
1.
go back to reference Amis AA, Jakob RP (1998) Anterior cruciate ligament graft positioning, tensioning and twisting. Knee Surg Sports Traumatol Arthrosc 6(Suppl 1):S2–12PubMed Amis AA, Jakob RP (1998) Anterior cruciate ligament graft positioning, tensioning and twisting. Knee Surg Sports Traumatol Arthrosc 6(Suppl 1):S2–12PubMed
2.
go back to reference Barrow AE, Pilia M, Guda T, Kadrmas WR, Burns TC (2014) Femoral suspension devices for anterior cruciate ligament reconstruction: do adjustable loops lengthen? Am J Sports Med 42:343–349PubMed Barrow AE, Pilia M, Guda T, Kadrmas WR, Burns TC (2014) Femoral suspension devices for anterior cruciate ligament reconstruction: do adjustable loops lengthen? Am J Sports Med 42:343–349PubMed
3.
go back to reference Benea H, d'Astorg H, Klouche S, Bauer T, Tomoaia G, Hardy P (2014) Pain evaluation after all-inside anterior cruciate ligament reconstruction and short term functional results of a prospective randomized study. Knee 21:102–106PubMed Benea H, d'Astorg H, Klouche S, Bauer T, Tomoaia G, Hardy P (2014) Pain evaluation after all-inside anterior cruciate ligament reconstruction and short term functional results of a prospective randomized study. Knee 21:102–106PubMed
4.
go back to reference Bernard M, Hertel P, Hornung H, Cierpinski T (1997) Femoral insertion of the ACL. Radiographic quadrant method. Am J Knee Surg 10:14–21 (discussion 21–12)PubMed Bernard M, Hertel P, Hornung H, Cierpinski T (1997) Femoral insertion of the ACL. Radiographic quadrant method. Am J Knee Surg 10:14–21 (discussion 21–12)PubMed
5.
go back to reference Beynnon BD, Johnson RJ, Fleming BC, Kannus P, Kaplan M, Samani J, et al. (2002) Anterior cruciate ligament replacement: comparison of bone-patellar tendon-bone grafts with two-strand hamstring grafts. A prospective, randomized study. J Bone Joint Surg Am 84-A:1503–1513 Beynnon BD, Johnson RJ, Fleming BC, Kannus P, Kaplan M, Samani J, et al. (2002) Anterior cruciate ligament replacement: comparison of bone-patellar tendon-bone grafts with two-strand hamstring grafts. A prospective, randomized study. J Bone Joint Surg Am 84-A:1503–1513
6.
go back to reference Boutsiadis A, Panisset JC, Devitt BM, Mauris F, Barthelemy R, Barth J (2018) Anterior laxity at 2 years after anterior cruciate ligament reconstruction is comparable when using adjustable-loop suspensory fixation and interference screw fixation. Am J Sports Med 46:2366–2375PubMed Boutsiadis A, Panisset JC, Devitt BM, Mauris F, Barthelemy R, Barth J (2018) Anterior laxity at 2 years after anterior cruciate ligament reconstruction is comparable when using adjustable-loop suspensory fixation and interference screw fixation. Am J Sports Med 46:2366–2375PubMed
7.
go back to reference Branch TP, Stinton SK, Hutton WC, Neyret P (2017) The combination of tibial anterior translation and axial rotation into a single biomechanical factor improves the prediction of patient satisfaction over each factor alone in patients with ACL reconstructed knees. Knee Surg Sports Traumatol Arthrosc 25:1038–1047PubMedPubMedCentral Branch TP, Stinton SK, Hutton WC, Neyret P (2017) The combination of tibial anterior translation and axial rotation into a single biomechanical factor improves the prediction of patient satisfaction over each factor alone in patients with ACL reconstructed knees. Knee Surg Sports Traumatol Arthrosc 25:1038–1047PubMedPubMedCentral
8.
go back to reference Bressy G, Brun V, Ferrier A, Dujardin D, Oubaya N, Morel N et al (2016) Lack of stability at more than 12 months of follow-up after anterior cruciate ligament reconstruction using all-inside quadruple-stranded semitendinosus graft with adjustable cortical button fixation in both femoral and tibial sides. Orthop Traumatol Surg Res 102:867–872PubMed Bressy G, Brun V, Ferrier A, Dujardin D, Oubaya N, Morel N et al (2016) Lack of stability at more than 12 months of follow-up after anterior cruciate ligament reconstruction using all-inside quadruple-stranded semitendinosus graft with adjustable cortical button fixation in both femoral and tibial sides. Orthop Traumatol Surg Res 102:867–872PubMed
9.
go back to reference Buelow JU, Siebold R, Ellermann A (2002) A prospective evaluation of tunnel enlargement in anterior cruciate ligament reconstruction with hamstrings: extracortical versus anatomical fixation. Knee Surg Sports Traumatol Arthrosc 10:80–85PubMed Buelow JU, Siebold R, Ellermann A (2002) A prospective evaluation of tunnel enlargement in anterior cruciate ligament reconstruction with hamstrings: extracortical versus anatomical fixation. Knee Surg Sports Traumatol Arthrosc 10:80–85PubMed
10.
go back to reference Connaughton AJ, Geeslin AG, Uggen CW (2017) All-inside ACL reconstruction: how does it compare to standard ACL reconstruction techniques? J Orthop 14:241–246PubMedPubMedCentral Connaughton AJ, Geeslin AG, Uggen CW (2017) All-inside ACL reconstruction: how does it compare to standard ACL reconstruction techniques? J Orthop 14:241–246PubMedPubMedCentral
11.
go back to reference Emond CE, Woelber EB, Kurd SK, Ciccotti MG, Cohen SB (2011) A comparison of the results of anterior cruciate ligament reconstruction using bioabsorbable versus metal interference screws: a meta-analysis. J Bone Joint Surg Am 93:572–580PubMed Emond CE, Woelber EB, Kurd SK, Ciccotti MG, Cohen SB (2011) A comparison of the results of anterior cruciate ligament reconstruction using bioabsorbable versus metal interference screws: a meta-analysis. J Bone Joint Surg Am 93:572–580PubMed
12.
go back to reference Fink C, Zapp M, Benedetto KP, Hackl W, Hoser C, Rieger M (2001) Tibial tunnel enlargement following anterior cruciate ligament reconstruction with patellar tendon autograft. Arthroscopy 17:138–143PubMed Fink C, Zapp M, Benedetto KP, Hackl W, Hoser C, Rieger M (2001) Tibial tunnel enlargement following anterior cruciate ligament reconstruction with patellar tendon autograft. Arthroscopy 17:138–143PubMed
14.
go back to reference Greenhouse SW, Geisser S (1959) On methods in the analysis of profile data. Psychometrika 24:95–112 Greenhouse SW, Geisser S (1959) On methods in the analysis of profile data. Psychometrika 24:95–112
15.
go back to reference Hoher J, Moller HD, Fu FH (1998) Bone tunnel enlargement after anterior cruciate ligament reconstruction: fact or fiction? Knee Surg Sports Traumatol Arthrosc 6:231–240PubMed Hoher J, Moller HD, Fu FH (1998) Bone tunnel enlargement after anterior cruciate ligament reconstruction: fact or fiction? Knee Surg Sports Traumatol Arthrosc 6:231–240PubMed
16.
go back to reference Inderhaug E, Strand T, Fischer-Bredenbeck C, Solheim E (2014) Effect of a too posterior placement of the tibial tunnel on the outcome 10–12 years after anterior cruciate ligament reconstruction using the 70-degree tibial guide. Knee Surg Sports Traumatol Arthrosc 22:1182–1189PubMed Inderhaug E, Strand T, Fischer-Bredenbeck C, Solheim E (2014) Effect of a too posterior placement of the tibial tunnel on the outcome 10–12 years after anterior cruciate ligament reconstruction using the 70-degree tibial guide. Knee Surg Sports Traumatol Arthrosc 22:1182–1189PubMed
17.
go back to reference Jackson DW, Windler GE, Simon TM (1990) Intraarticular reaction associated with the use of freeze-dried, ethylene oxide-sterilized bone-patella tendon-bone allografts in the reconstruction of the anterior cruciate ligament. Am J Sports Med 18:1–10 (discussion 10–11)PubMed Jackson DW, Windler GE, Simon TM (1990) Intraarticular reaction associated with the use of freeze-dried, ethylene oxide-sterilized bone-patella tendon-bone allografts in the reconstruction of the anterior cruciate ligament. Am J Sports Med 18:1–10 (discussion 10–11)PubMed
18.
go back to reference Kawaguchi Y, Kondo E, Kitamura N, Kai S, Inoue M, Yasuda K (2011) Comparisons of femoral tunnel enlargement in 169 patients between single-bundle and anatomic double-bundle anterior cruciate ligament reconstructions with hamstring tendon grafts. Knee Surg Sports Traumatol Arthrosc 19:1249–1257PubMed Kawaguchi Y, Kondo E, Kitamura N, Kai S, Inoue M, Yasuda K (2011) Comparisons of femoral tunnel enlargement in 169 patients between single-bundle and anatomic double-bundle anterior cruciate ligament reconstructions with hamstring tendon grafts. Knee Surg Sports Traumatol Arthrosc 19:1249–1257PubMed
19.
go back to reference Kobayashi M, Nakagawa Y, Suzuki T, Okudaira S, Nakamura T (2006) A retrospective review of bone tunnel enlargement after anterior cruciate ligament reconstruction with hamstring tendons fixed with a metal round cannulated interference screw in the femur. Arthroscopy 22:1093–1099PubMed Kobayashi M, Nakagawa Y, Suzuki T, Okudaira S, Nakamura T (2006) A retrospective review of bone tunnel enlargement after anterior cruciate ligament reconstruction with hamstring tendons fixed with a metal round cannulated interference screw in the femur. Arthroscopy 22:1093–1099PubMed
20.
go back to reference Kocher MS, Steadman JR, Briggs KK, Sterett WI, Hawkins RJ (2004) Relationships between objective assessment of ligament stability and subjective assessment of symptoms and function after anterior cruciate ligament reconstruction. Am J Sports Med 32:629–634PubMed Kocher MS, Steadman JR, Briggs KK, Sterett WI, Hawkins RJ (2004) Relationships between objective assessment of ligament stability and subjective assessment of symptoms and function after anterior cruciate ligament reconstruction. Am J Sports Med 32:629–634PubMed
21.
go back to reference Konan S, Haddad FS (2009) A clinical review of bioabsorbable interference screws and their adverse effects in anterior cruciate ligament reconstruction surgery. Knee 16:6–13PubMed Konan S, Haddad FS (2009) A clinical review of bioabsorbable interference screws and their adverse effects in anterior cruciate ligament reconstruction surgery. Knee 16:6–13PubMed
22.
go back to reference Lanzetti RM, Lupariello D, De Carli A, Monaco E, Guzzini M, Fabbri M et al (2017) Can the outside-in half-tunnel technique reduce femoral tunnel widening in anterior cruciate ligament reconstruction? a CT study. Eur J Orthop Surg Traumatol 27:659–664PubMed Lanzetti RM, Lupariello D, De Carli A, Monaco E, Guzzini M, Fabbri M et al (2017) Can the outside-in half-tunnel technique reduce femoral tunnel widening in anterior cruciate ligament reconstruction? a CT study. Eur J Orthop Surg Traumatol 27:659–664PubMed
23.
go back to reference Lubowitz JH (2012) All-inside anterior cruciate ligament graft link: graft preparation technique. Arthrosc Tech 1:e165–168PubMedPubMedCentral Lubowitz JH (2012) All-inside anterior cruciate ligament graft link: graft preparation technique. Arthrosc Tech 1:e165–168PubMedPubMedCentral
24.
go back to reference Lubowitz JH, Schwartzberg R, Smith P (2015) Cortical suspensory button versus aperture interference screw fixation for knee anterior cruciate ligament soft-tissue allograft: a prospective, randomized controlled trial. Arthroscopy 31:1733–1739PubMed Lubowitz JH, Schwartzberg R, Smith P (2015) Cortical suspensory button versus aperture interference screw fixation for knee anterior cruciate ligament soft-tissue allograft: a prospective, randomized controlled trial. Arthroscopy 31:1733–1739PubMed
25.
go back to reference Lubowitz JH, Schwartzberg R, Smith P (2013) Randomized controlled trial comparing all-inside anterior cruciate ligament reconstruction technique with anterior cruciate ligament reconstruction with a full tibial tunnel. Arthroscopy 29:1195–1200PubMed Lubowitz JH, Schwartzberg R, Smith P (2013) Randomized controlled trial comparing all-inside anterior cruciate ligament reconstruction technique with anterior cruciate ligament reconstruction with a full tibial tunnel. Arthroscopy 29:1195–1200PubMed
26.
go back to reference Marchant MH Jr, Willimon SC, Vinson E, Pietrobon R, Garrett WE, Higgins LD (2010) Comparison of plain radiography, computed tomography, and magnetic resonance imaging in the evaluation of bone tunnel widening after anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 18:1059–1064PubMed Marchant MH Jr, Willimon SC, Vinson E, Pietrobon R, Garrett WE, Higgins LD (2010) Comparison of plain radiography, computed tomography, and magnetic resonance imaging in the evaluation of bone tunnel widening after anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 18:1059–1064PubMed
27.
go back to reference Mayr R, Heinrichs CH, Eichinger M, Coppola C, Schmoelz W, Attal R (2015) Biomechanical comparison of 2 anterior cruciate ligament graft preparation techniques for tibial fixation: adjustable-length loop cortical button or interference screw. Am J Sports Med 43:1380–1385PubMed Mayr R, Heinrichs CH, Eichinger M, Coppola C, Schmoelz W, Attal R (2015) Biomechanical comparison of 2 anterior cruciate ligament graft preparation techniques for tibial fixation: adjustable-length loop cortical button or interference screw. Am J Sports Med 43:1380–1385PubMed
28.
go back to reference Mayr R, Heinrichs CH, Eichinger M, Smekal V, Schmoelz W, Attal R (2016) Preparation techniques for all-inside ACL cortical button grafts: a biomechanical study. Knee Surg Sports Traumatol Arthrosc 24:2983–2989PubMed Mayr R, Heinrichs CH, Eichinger M, Smekal V, Schmoelz W, Attal R (2016) Preparation techniques for all-inside ACL cortical button grafts: a biomechanical study. Knee Surg Sports Traumatol Arthrosc 24:2983–2989PubMed
29.
go back to reference Mayr R, Rosenberger R, Agraharam D, Smekal V, El Attal R (2012) Revision anterior cruciate ligament reconstruction: an update. Arch Orthop Trauma Surg 132:1299–1313PubMed Mayr R, Rosenberger R, Agraharam D, Smekal V, El Attal R (2012) Revision anterior cruciate ligament reconstruction: an update. Arch Orthop Trauma Surg 132:1299–1313PubMed
30.
go back to reference Mayr R, Smekal V, Koidl C, Coppola C, Fritz J, Rudisch A et al (2017) Tunnel widening after ACL reconstruction with aperture screw fixation or all-inside reconstruction with suspensory cortical button fixation: volumetric measurements on CT and MRI scans. Knee 24:1047–1054PubMed Mayr R, Smekal V, Koidl C, Coppola C, Fritz J, Rudisch A et al (2017) Tunnel widening after ACL reconstruction with aperture screw fixation or all-inside reconstruction with suspensory cortical button fixation: volumetric measurements on CT and MRI scans. Knee 24:1047–1054PubMed
31.
go back to reference Mochizuki Y, Kaneko T, Kawahara K, Toyoda S, Kono N, Hada M et al (2018) The quadrant method measuring four points is as a reliable and accurate as the quadrant method in the evaluation after anatomical double-bundle ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 26:2389–2394PubMed Mochizuki Y, Kaneko T, Kawahara K, Toyoda S, Kono N, Hada M et al (2018) The quadrant method measuring four points is as a reliable and accurate as the quadrant method in the evaluation after anatomical double-bundle ACL reconstruction. Knee Surg Sports Traumatol Arthrosc 26:2389–2394PubMed
32.
go back to reference Monaco E, Fabbri M, Redler A, Gaj E, De Carli A, Argento G, et al. (2018) Anterior cruciate ligament reconstruction is associated with greater tibial tunnel widening when using a bioabsorbable screw compared to an all-inside technique with suspensory fixation. Knee Surg Sports Traumatol Arthrosc. https://doi.org/10.1007/s00167-018-5275-x Monaco E, Fabbri M, Redler A, Gaj E, De Carli A, Argento G, et al. (2018) Anterior cruciate ligament reconstruction is associated with greater tibial tunnel widening when using a bioabsorbable screw compared to an all-inside technique with suspensory fixation. Knee Surg Sports Traumatol Arthrosc. https://​doi.​org/​10.​1007/​s00167-018-5275-x
33.
go back to reference Pereira H, Correlo VM, Silva-Correia J, Oliveira JM, Reis RL, Espregueira-Mendes J (2013) Migration of "bioabsorbable" screws in ACL repair. How much do we know? a systematic review. Knee Surg Sports Traumatol Arthrosc 21:986–994PubMed Pereira H, Correlo VM, Silva-Correia J, Oliveira JM, Reis RL, Espregueira-Mendes J (2013) Migration of "bioabsorbable" screws in ACL repair. How much do we know? a systematic review. Knee Surg Sports Traumatol Arthrosc 21:986–994PubMed
34.
go back to reference Roberts TS, Drez D Jr, McCarthy W, Paine R (1991) Anterior cruciate ligament reconstruction using freeze-dried, ethylene oxide-sterilized, bone-patellar tendon-bone allografts. Two year results in thirty-six patients. Am J Sports Med 19:35–41PubMed Roberts TS, Drez D Jr, McCarthy W, Paine R (1991) Anterior cruciate ligament reconstruction using freeze-dried, ethylene oxide-sterilized, bone-patellar tendon-bone allografts. Two year results in thirty-six patients. Am J Sports Med 19:35–41PubMed
35.
go back to reference Rodeo SA (2018) Editorial commentary: the quest to prevent knee anterior cruciate ligament bone tunnel widening continues. Arthroscopy 34:2228–2229PubMed Rodeo SA (2018) Editorial commentary: the quest to prevent knee anterior cruciate ligament bone tunnel widening continues. Arthroscopy 34:2228–2229PubMed
36.
go back to reference Rodeo SA, Kawamura S, Kim HJ, Dynybil C, Ying L (2006) Tendon healing in a bone tunnel differs at the tunnel entrance versus the tunnel exit: an effect of graft-tunnel motion? Am J Sports Med 34:1790–1800PubMed Rodeo SA, Kawamura S, Kim HJ, Dynybil C, Ying L (2006) Tendon healing in a bone tunnel differs at the tunnel entrance versus the tunnel exit: an effect of graft-tunnel motion? Am J Sports Med 34:1790–1800PubMed
37.
go back to reference Smith PA, Stannard JP, Pfeiffer FM, Kuroki K, Bozynski CC, Cook JL (2016) Suspensory versus interference screw fixation for arthroscopic anterior cruciate ligament reconstruction in a translational large-animal model. Arthroscopy 32:1086–1097PubMed Smith PA, Stannard JP, Pfeiffer FM, Kuroki K, Bozynski CC, Cook JL (2016) Suspensory versus interference screw fixation for arthroscopic anterior cruciate ligament reconstruction in a translational large-animal model. Arthroscopy 32:1086–1097PubMed
38.
go back to reference Tiefenboeck TM, Hirtler L, Winnisch M, Joestl J, Koch T, Komjati M et al (2018) A bigger suture diameter for anterior cruciate ligament all-inside graft link preparation leads to better graft stability: An anatomical specimen study. Knee 25:427–433PubMed Tiefenboeck TM, Hirtler L, Winnisch M, Joestl J, Koch T, Komjati M et al (2018) A bigger suture diameter for anterior cruciate ligament all-inside graft link preparation leads to better graft stability: An anatomical specimen study. Knee 25:427–433PubMed
39.
go back to reference Tsuda E, Fukuda Y, Loh JC, Debski RE, Fu FH, Woo SL (2002) The effect of soft-tissue graft fixation in anterior cruciate ligament reconstruction on graft-tunnel motion under anterior tibial loading. Arthroscopy 18:960–967PubMed Tsuda E, Fukuda Y, Loh JC, Debski RE, Fu FH, Woo SL (2002) The effect of soft-tissue graft fixation in anterior cruciate ligament reconstruction on graft-tunnel motion under anterior tibial loading. Arthroscopy 18:960–967PubMed
40.
go back to reference Webster KE, Feller JA, Hameister KA (2001) Bone tunnel enlargement following anterior cruciate ligament reconstruction: a randomised comparison of hamstring and patellar tendon grafts with 2-year follow-up. Knee Surg Sports Traumatol Arthrosc 9:86–91PubMed Webster KE, Feller JA, Hameister KA (2001) Bone tunnel enlargement following anterior cruciate ligament reconstruction: a randomised comparison of hamstring and patellar tendon grafts with 2-year follow-up. Knee Surg Sports Traumatol Arthrosc 9:86–91PubMed
41.
go back to reference Weiler A, Schmeling A, Stohr I, Kaab MJ, Wagner M (2007) Primary versus single-stage revision anterior cruciate ligament reconstruction using autologous hamstring tendon grafts: a prospective matched-group analysis. Am J Sports Med 35:1643–1652PubMed Weiler A, Schmeling A, Stohr I, Kaab MJ, Wagner M (2007) Primary versus single-stage revision anterior cruciate ligament reconstruction using autologous hamstring tendon grafts: a prospective matched-group analysis. Am J Sports Med 35:1643–1652PubMed
42.
go back to reference Wilson TC, Kantaras A, Atay A, Johnson DL (2004) Tunnel enlargement after anterior cruciate ligament surgery. Am J Sports Med 32:543–549PubMed Wilson TC, Kantaras A, Atay A, Johnson DL (2004) Tunnel enlargement after anterior cruciate ligament surgery. Am J Sports Med 32:543–549PubMed
43.
go back to reference Xu Y, Ao Y, Wang J, Yu J, Cui G (2011) Relation of tunnel enlargement and tunnel placement after single-bundle anterior cruciate ligament reconstruction. Arthroscopy 27:923–932PubMed Xu Y, Ao Y, Wang J, Yu J, Cui G (2011) Relation of tunnel enlargement and tunnel placement after single-bundle anterior cruciate ligament reconstruction. Arthroscopy 27:923–932PubMed
44.
go back to reference Zantop T, Weimann A, Schmidtko R, Herbort M, Raschke MJ, Petersen W (2006) Graft laceration and pullout strength of soft-tissue anterior cruciate ligament reconstruction: in vitro study comparing titanium, poly-d, l-lactide, and poly-d, l-lactide-tricalcium phosphate screws. Arthroscopy 22:1204–1210PubMed Zantop T, Weimann A, Schmidtko R, Herbort M, Raschke MJ, Petersen W (2006) Graft laceration and pullout strength of soft-tissue anterior cruciate ligament reconstruction: in vitro study comparing titanium, poly-d, l-lactide, and poly-d, l-lactide-tricalcium phosphate screws. Arthroscopy 22:1204–1210PubMed
Metadata
Title
ACL reconstruction with adjustable-length loop cortical button fixation results in less tibial tunnel widening compared with interference screw fixation
Authors
Raul Mayr
Vinzenz Smekal
Christian Koidl
Christian Coppola
Martin Eichinger
Ansgar Rudisch
Christof Kranewitter
René Attal
Publication date
01-04-2020
Publisher
Springer Berlin Heidelberg
Published in
Knee Surgery, Sports Traumatology, Arthroscopy / Issue 4/2020
Print ISSN: 0942-2056
Electronic ISSN: 1433-7347
DOI
https://doi.org/10.1007/s00167-019-05642-9

Other articles of this Issue 4/2020

Knee Surgery, Sports Traumatology, Arthroscopy 4/2020 Go to the issue