The Lark Loop Used for Proximal Biceps Tenodesis: An All-Arthroscopic Technique

Zhou, Min; Zhou, Chuanhai; Zhang, Jinming; Long, Yi; Guo, Jiang; Hou, Jingyi; Yang, Ruiguo

doi:10.1016/j.eats.2022.02.031

Cited by 1 publication

(3 citation statements)

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“…Eleven tendons in the Lark‐Loop group were sutured with No. 2 FiberWire according to the protocol of Zhou et al 16 . First, the No.…”

Section: Methodsmentioning

confidence: 99%

“…Eleven tendons in the Lark-Loop group were sutured with No. 2 FiberWire according to the protocol of Zhou et al 16 First, the No. 2 FiberWire suture was folded in half to encircle the tendon, with the two suture strands threaded into the loop to construct a Lark's Head Knot 1 cm from the distal end of the tendon.…”

Section: Surgical Techniquesmentioning

confidence: 99%

“…15 Therefore, secure tendon grasping ability of the suture techniques is critical for successful arthroscopic tenodesis in order to obtain a lower incidence of Popeye deformity of the upper arm with endoscopic fixation. The Lark-Loop stitch, newly presented in 2022 by Zhou et al 16 constructs a Lark's head knot, holding tendon tissue with the two suture ends piercing through the middle portion of the tendon. When tension is applied to the ends of the two suture, the Lark's head knot self-tightening provides good tendon grip.…”

Section: Introductionmentioning

confidence: 99%

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Biomechanical Analysis of Lark‐Loop, Lasso‐Loop and Krackow Suture Technique in Tenodesis

Zhou

Cui

et al. 2023

Orthopaedic Surgery

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Objective Strong tendon grasping is vital to the success of a tenodesis operation. The purpose of this study was to evaluate the initial tendon‐fixation strength of the Lark‐Loop technique in arthroscopic suprapectoral biceps tenodesis and compare it with others commonly used techniques. Methods Thirty‐three porcine superficial flexor digitorum tendons were harvested from a local slaughterhouse and randomly divided into three groups to perform three tendon fixation techniques (Lasso‐Loop stich group, Lark‐Loop stich group or Krackow stich group; 11 tendons each group) with a No. 2 suture, respectively. Each tendon was pre‐tensioned in 5°N for 2 min and then cyclically loaded 5 to 30°N for 500 cycles to assess displacement. After cyclic loading, the tendon was loaded to ultimate tendon‐suture configuration failure at the rate of 1 mm/s. Finally, the mode of failure and the construct stiffness of the tendon were recorded and calculated. Results After cyclical loading, the displacement of the Lark‐Loop group was equivalent to the Krakow group (P > 0.9999) but significantly smaller than the Lasso‐Loop group (P = 0.0009). The ultimate load to failure for the Lark‐Loop was equivalent to the Krakow technique group (P = 0.1463) but significantly greater than the Lasso‐Loop group (P < 0.0001). The stiffness for the Lark‐Loop was equivalent to the Krakow group (P = 0.4718) but significantly greater than the Lasso‐Loop technique group (P < 0.0001). In the Lark‐Loop and Krackow group, all the tendons failed by suture breakage, while all the tendons failed by suture cutting through the tendon in the Lasso‐Loop technique group. Conclusion Lark‐Loop suture technique has biomechanical properties comparable to Krackow and superior to the Lasso‐Loop in terms of suture displacement, ultimate load to failure, and stiffness. Therefore, the Lark‐Loop suture fixation technique may be beneficial for arthroscopic biceps tenodesis.

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“…Eleven tendons in the Lark‐Loop group were sutured with No. 2 FiberWire according to the protocol of Zhou et al 16 . First, the No.…”

Section: Methodsmentioning

confidence: 99%

Section: Surgical Techniquesmentioning

confidence: 99%