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Aim The aim of the study was to investigate if the mode of anesthesia is a relevant factor influencing the length of the semitendinosus tendon harvested for anterior cruciate ligament (ACL) replacement.  Methods Patients undergoing ACL replacement were given the choice between spinal and general anesthesia. If general anesthesia was chosen, a short relaxation period was applied while harvesting the Semitendinosus (ST) tendon. The data for tendon length, the folding factor, and the diameter of the graft were collected. Except for redo procedures and ACL replacement with allograft all patients undergoing an ACL replacement were enrolled. Results Thirty-one patients with general anesthesia (GA) and 14 patients with spinal anesthesia (SA) were examined. The ST tendon length was 29.03 cm ± 2.6 cm in the GA group and 25.4 cm ± 2.70 in the SA group (t value 4.245, p=0.0001). The ST tendon could be quadrupled in 23 patients in the GA and 6 patients in the SA group (χ2=4.13, p=0.04). The graft diameter obtained was 8.53 mm ± 0.62 mm in the GA group and 7.71 mm ± 0.47 mm in the SA group (t value 4.885, p<0.0001). Conclusion General anesthesia with short-time relaxation while harvesting the ST tendon for ACL grafting allows to harvest longer ST tendons and consequently yields better results regarding the graft dimensions and should be offered to patients as a first-choice procedure. There is no other paper published yet, analyzing this relationship and if validated on a larger cohort, this might change clinical practice.

Original publication

DOI

10.7759/cureus.30791

Type

Journal article

Journal

Cureus

Publication Date

10/2022

Volume

14

Keywords

anterior cruciate ligament (acl) reconstruction, knee injuries, ortho surgery, surgical anaesthesia, tendon graft