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Quadriceps Tendon Rupture: A Biomechanical Comparison of Transosseous Equivalent Double-Row Suture Anchor Versus Transosseous Tunnel Repair.
MedLine Citation:
PMID:  23150161     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Quadriceps rupture off the patella is traditionally repaired by a transosseous tunnel technique, although a single-row suture anchor repair has recently been described. This study biomechanically tested a new transosseous equivalent (TE) double-row suture anchor technique compared with the transosseous repair for quadriceps repair. After simulated quadriceps-patella avulsion in 10 matched cadaveric knees, repairs were completed by either a three tunnel transosseous (TT = 5) or a TE suture anchor (TE = 5) technique. Double-row repairs were done using two 5.5 Bio-Corkscrew FT (fully threaded) (Arthrex, Inc., Naples, FL, USA) and two 3.5 Bio-PushLock anchors (Arthrex, Inc., Naples, FL, USA) with all 10 repairs done with #2 FiberWire suture (Arthrex, Inc., Naples, FL). Cyclic testing from 50 to 250 N for 250 cycles and pull to failure load (1 mm/s) were undertaken. Gap formation and ultimate tensile load (N) were recorded and stiffness data (N/mm) were calculated. Statistical analysis was performed using a Mann-Whitney U test and survival characteristics examined with Kaplan-Meier test. No significant difference was found between the TE and TT groups in stiffness (TE = 134 ± 15 N/mm, TT = 132 ± 26 N/mm, p = 0.28). The TE group had significantly less ultimate tensile load (N) compared with the TT group (TE = 447 ± 86 N, TT = 591 ± 8 4 N, p = 0.04), with all failures occurring at the suture eyelets. Although both quadriceps repairs were sufficiently strong, the transosseous repairs were stronger than the TE suture anchor repairs. The repair stiffness and gap formation were similar between the groups.
Authors:
Nathan D Hart; Matthew K Wallace; J Field Scovell; Ryan J Krupp; Chad Cook; Douglas J Wyland
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-3
Journal Detail:
Title:  The journal of knee surgery     Volume:  25     ISSN:  1538-8506     ISO Abbreviation:  J Knee Surg     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137599     Medline TA:  J Knee Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  335-340     Citation Subset:  -    
Copyright Information:
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.
Affiliation:
Department of Orthopedic Surgery, Santa Clara Valley Medical Center, San Jose, California.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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