Can a Two Simple Stitches Method Provide Secure Fixation Strength in Biceps Tenodesis?: Biomechanical Evaluation of Various Suture Techniques.
Clin Orthop Surg
; 14(3): 426-433, 2022 Sep.
Article
em En
| MEDLINE
| ID: mdl-36061853
ABSTRACT
Background:
The purpose of this study was to compare the initial fixation strength between four different suture methods for the long head of the biceps.Methods:
Forty-eight fresh frozen porcine flexor hallucis longus tendons (mean width at suture site, 8.5 ± 0.9 mm) and phalanx bones were randomly assigned to one of the four arthroscopic biceps tenodesis techniques simple stitch (SS), mattress suture (MS), lasso-loop (LL), and two simple stitches (2SS). A biceps tenodesis was performed according to the four techniques using all-suture type suture anchors (1.9-mm SUTUREFIX anchor with No. 1 ULTRABRAID sutures). Biomechanical evaluations were performed to test load to failure (N), stiffness (N/mm), stress (N/m2), and mode of failure.Results:
As for the SS, MS, LL, and 2SS, the mean load to failure was 50.9 ± 14.61 N, 82.3 ± 24.8 N, 116.2 ± 26.7 N, and 130.8 ± 22.5 N (p < 0.001), respectively; mean stiffness was 6.1 ± 1.3 N/mm, 6.7 ± 2.6 N/mm, 7.8 ± 1.4 N/mm, and 8.1 ± 4.2 N/mm, respectively (p = 0.258); and mean stress was 0.7 ± 0.3 N/m2, 1.4 ± 0.8 N/m2, 2.9 ± 0.7 N/m2, and 2.7 ± 0.8 N/m2, respectively (p < 0.001). All the failures happened by the suture cutting through the tendon along its longitudinal fibers.Conclusions:
Neither the SS nor the MS method was enough to securely fix the biceps tendon with a significantly lower mechanical strength; however, the 2SS method showed similar initial fixation strength as the LL technique.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tenodese
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Clin Orthop Surg
Ano de publicação:
2022
Tipo de documento:
Article