A comparison of bioabsorbable and metallic suture anchors in a dynamically loaded, intra-articular caprine model.
Little is known about the in vivo behavior of bioabsorbable suture anchors. A goat model was used to biomechanically and histologically test bioabsorbable and metallic suture anchors in an intra-articular environment at 0, 6, and 12 weeks. Significantly greater force was required to break the bioabsorbable construct than the metallic construct at 0 and 6 weeks. Failure of the metallic anchor constructs occurred at the eyelet. Histological analysis of both bone-anchor interfaces demonstrated equally good osteointegration without evidence of osteolysis. The bioabsorbable suture anchor tested is safe for use in clinical practice without concerns for the strength of the construct or bony reaction to the material.
Bottoni
Craig R
CR
Aspetar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar.
Brooks
Daniel E
DE
DeBerardino
Thomas M
TM
Owens
Brett D
BD
Judson
Kurt L
KL
Eggers
Jeffrey S
JS
Mays
Mary Z
MZ
D020341:Absorbable Implants; D000818:Animals; D004195:Disease Models, Animal; D019544:Equipment Failure Analysis; D006041:Goats; D006614:Hindlimb / Q000601:surgery; D008670:Metals; D016348:Osseointegration; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013264:Stifle / Q000601:surgery*; D053441:Suture Anchors / Q000009:adverse effects*; D053656:Tenodesis / Q000295:instrumentation* / Q000379:methods
D008670:Metals