Comparison of Different Sizes of Bioabsorbable Interference Screws for Anterior Cruciate Ligament Reconstruction Using Bioabsorbable Bead Augmentation in a Porcine Model

Shen, Pei; Lien, Shiu Bii; Shen, Horng-Der; Wang, Chih Chien; Huang, Guo Shu; Chao, Kuo; Lee, Chian Her; Lin, Li‐Chen

doi:10.1016/j.arthro.2009.05.011

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…The main limitation of this study is that porcine knees were used. However, due to anatomic similarity to the human knee, the porcine model has often been used in experimental studies [4, 6, 7, 20, 22, 25, 26, 28, 35, 38, 45]. Another limitation is that it is an in vitro study, which could not replicate functional loading and does not take into consideration in vivo variables, such as graft healing and graft relaxation.…”

Section: Discussionmentioning

confidence: 99%

Biomechanical comparison of three anatomic ACL reconstructions in a porcine model

Debandi

Maeyama

et al. 2010

Knee Surg Sports Traumatol Arthrosc

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The in situ force in the ACL is better restored with an anatomic three-tunnel DB reconstruction in response to the simulated pivot-shift test at low flexion angle when compared to an anatomic SB reconstruction. Both three-tunnel DB ACL reconstructions performed in an anatomic fashion had similar biomechanical behavior. As long as it is performed anatomically, DB ACL reconstruction could be better alternative than SB ACL reconstruction, no matter which three-tunnel procedure, 2F-1T or 1F-2T, is used.

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Section: Discussionmentioning

confidence: 99%

Biomechanical comparison of three anatomic ACL reconstructions in a porcine model

Debandi

Maeyama

et al. 2010

Knee Surg Sports Traumatol Arthrosc

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“…Several studies comparing metal screws and bioabsorbable interference screw have been performed. They support the conclusion that bioabsorbable screws are a reasonable alternative to metal interference screws [9, 16, 18, 19, 25, 31, 35, 38]. Bioabsorbable screws are also found to provide as good fixation as metal screws [18, 21].…”

Section: Introductionmentioning

confidence: 54%

A prospective randomized study of ACL-reconstructions using bone-patellar tendon-bone grafts fixed with bioabsorbable or metal interference screws

Drogset

Straume

Bjørkmo

et al. 2011

Knee Surg Sports Traumatol Arthrosc

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IntroductionBioabsorbable screws are, at the expense of metal screws, increasingly used as fixation device in ACL-reconstructions. The possible advantages with bioabsorbable screws are better postoperative MRI evaluations and easier revision surgery.PurposeThe aim of this study was to compare the clinical outcome after ACL-reconstructions with BPTB-grafts fixed with metal interference screws or bioabsorbable screws 7 years postoperatively. The resorption of the bioabsorbable screws was also analyzed.MethodsBetween 2000 and 2001, 41 patients with ACL deficient knees were randomized for the use of BPTB-graft fixed with either metal interference screws or bioabsorbable poly-l-lactic acid screws. This is a 7-year follow-up with clinical examinations of both groups and, MRI of the patients with bioabsorbable screws.ResultsThe clinical and functional results were satisfactory in both groups. There were no significant differences between the groups in any parameter measured, except for better Pivot shift results in the bioscrew group (P = 0.04). The MRI evaluation showed degradation of the bioscrews. A residual screw tract which appeared threaded was seen in the tibia in 11 of the 16 patients. There was no sign of bony ingrowth in the previous screw site in the tibia in any of the patients.ConclusionThe potential advantages of using PLLA-screws compared to metal screws are not sufficient to warrant the routine use of PLLA-screws in ACL-reconstructions.Level of evidenceI.

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“…Screw thread laceration of the bone plug, the tendon itself or the graft traction sutures are clinically important and may be reasons for failure [48,49]. Particularly, there are concerns about the soft tissue graft damage by the screw threads.…”

Section: Discussionmentioning

confidence: 99%

Torsional stability of interference screws derived from bovine bone - a biomechanical study

Bauer¹,

Efe²,

Herdrich

et al. 2010

BMC Musculoskelet Disord

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BackgroundIn the present biomechanical study, the torsional stability of different interference screws, made of bovine bone, was tested. Interference screws derived from bovine bone are a possible biological alternative to conventional metallic or bioabsorbable polymer interference screws.MethodsIn the first part of the study we compared the torsional stability of self-made 8 mm Interference screws (BC) and a commercial 8 mm interference screw (Tutofix®). Furthermore, we compared the torsional strength of BC screws with different diameters. For screwing in, a hexagon head and an octagon head were tested. Maximum breaking torques in polymethyl methacrylate resin were recorded by means of an electronic torque screw driver. In the second part of the study the tibial part of a bone-patellar tendon-bone graft was fixed in porcine test specimens using an 8 mm BC screw and the maximum insertion torques were recorded. Each interference screw type was tested 5 times.ResultsThere was no statistically significant difference between the different 8 mm interference screws (p = 0.121). Pairwise comparisons did not reveal statistically significant differences, either. It was demonstrated for the BC screws, that a larger screw diameter significantly leads to higher torsional stability (p = 9.779 × 10-5). Pairwise comparisons showed a significantly lower torsional stability for the 7 mm BC screw than for the 8 mm BC screw (p = 0.0079) and the 9 mm BC screw (p = 0.0079). Statistically significant differences between the 8 mm and the 9 mm BC screw could not be found (p = 0.15). During screwing into the tibial graft channel of the porcine specimens, insertion torques between 0.5 Nm and 3.2 Nm were recorded. In one case the hexagon head of a BC screw broke off during the last turn.ConclusionsThe BC screws show comparable torsional stability to Tutofix® interference screws. As expected the torsional strength of the screws increases significantly with the diameter. The safety and in vivo performance of products derived from xenogeneic bone should be the focus of further investigations.

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Comparison of Different Sizes of Bioabsorbable Interference Screws for Anterior Cruciate Ligament Reconstruction Using Bioabsorbable Bead Augmentation in a Porcine Model

Cited by 8 publications

References 16 publications

Biomechanical comparison of three anatomic ACL reconstructions in a porcine model

Biomechanical comparison of three anatomic ACL reconstructions in a porcine model

A prospective randomized study of ACL-reconstructions using bone-patellar tendon-bone grafts fixed with bioabsorbable or metal interference screws

Torsional stability of interference screws derived from bovine bone - a biomechanical study

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