Biceps tenodesis versus allograft reconstruction for varus instability.

MedStar author(s):
Citation: J Knee Surg. 27(2):133-7, 2014 Apr.The Journal of Knee Surgery. 27(2):133-7, 2014 Apr.PMID: 24122435Institution: Curtis National Hand Center | MedStar Union Memorial HospitalDepartment: OrthopaedicsForm of publication: Journal ArticleMedline article type(s): Comparative Study | Journal ArticleSubject headings: *Collateral Ligaments/in [Injuries] | *Joint Instability/su [Surgery] | *Knee Injuries/su [Surgery] | *Tendons/tr [Transplantation] | *Tenodesis | Aged | Aged, 80 and over | Arthroplasty | Female | Humans | Knee Joint/ph [Physiology] | Knee Joint/su [Surgery] | Male | Random Allocation | Transplantation, HomologousYear: 2014ISSN:
  • 1538-8506
Name of journal: The journal of knee surgeryAbstract: Although effective to restore stability in varus laxity, a fibula-based procedure such as figure-of-8 reconstruction can be technically demanding and requires use of allograft or autograft. Biceps rerouting offers an alternative without the potential complications of allograft or autograft procedures. It is not known whether biceps tenodesis is effective in addressing isolated varus laxity with lateral collateral ligament (LCL) rupture. We compared biceps tenodesis and figure-of-8 allograft reconstruction for restoration of varus stability. Nine knees were loaded at 10 N-m at 0- and 30-degree knee flexion in intact, LCL sectioned, and reconstructed state. Both biceps tenodesis and figure-of-8 reconstruction restored varus stability to at least baseline stability. Normalized displacement with biceps tenodesis measured at time zero was significantly lower than with allograft reconstruction at 0 degrees (0.75+/-0.26 vs. 1.09+/-0.31 degrees; p = 0.04) and 30 degrees (0.66+/-0.14 vs. 0.91+/-0.27 degrees; p = 0.04). Biceps tenodesis was effective at restoring baseline varus stability in isolated varus laxity.Copyright Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.All authors: Beiro C, Hinton RY, Parks BG, Tsai MFiscal year: FY2014Digital Object Identifier: Date added to catalog: 2016-07-15
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Journal Article MedStar Authors Catalog Article 24122435 Available 24122435

Although effective to restore stability in varus laxity, a fibula-based procedure such as figure-of-8 reconstruction can be technically demanding and requires use of allograft or autograft. Biceps rerouting offers an alternative without the potential complications of allograft or autograft procedures. It is not known whether biceps tenodesis is effective in addressing isolated varus laxity with lateral collateral ligament (LCL) rupture. We compared biceps tenodesis and figure-of-8 allograft reconstruction for restoration of varus stability. Nine knees were loaded at 10 N-m at 0- and 30-degree knee flexion in intact, LCL sectioned, and reconstructed state. Both biceps tenodesis and figure-of-8 reconstruction restored varus stability to at least baseline stability. Normalized displacement with biceps tenodesis measured at time zero was significantly lower than with allograft reconstruction at 0 degrees (0.75+/-0.26 vs. 1.09+/-0.31 degrees; p = 0.04) and 30 degrees (0.66+/-0.14 vs. 0.91+/-0.27 degrees; p = 0.04). Biceps tenodesis was effective at restoring baseline varus stability in isolated varus laxity.Copyright Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

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