Modified oblique incision is better Method in hamstring tend
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During anterior cruciate ligament (ACL) reconstruction, different methods of harvesting hamstring tendon may lead to different degrees of injury to the inferior patellar branch of the saphenous nerve (IPBSN). Researchers proposed a modified oblique incision (MOI) and compared it with the classic oblique incision (COI) in terms of the resulting levels of injury and sensory loss and the clinical outcome.

Patients with ACL injury were randomly selected and included in the study. 30 patients underwent the COI to harvest hamstring tendons, and the other 32 patients underwent the MOI. The pin prick test was performed to detect the sensation loss at 2 weeks, 6 months, and 1 year after the operation. Digital photos of the region of hypoesthesia area were taken, and then, a computer software was used to calculate the area of the hypoesthesia. The length of the incision and knee joint functional score were also recorded.

Results
--At the final follow-up, the incidence of IPBSN injury in COI and MOI were 33.3% and 9.4%, and the areas of paresthesia were 26.4±2.4 cm2 and 9.8±3.4 cm2 respectively.

--There was no significant difference in the incision length or knee functional score between the two groups.

The MOI will substantially lower the risk of IPBSN injury, reduce the region of hypoesthesia, and increase subjective satisfaction. As a result, the MOI is a better method of extracting hamstring tendons in ACL reconstruction than the COI.

Source: https://josr-online.biomedcentral.com/articles/10.1186/s13018-021-02341-5
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