Predicting the graft diameter of the peroneus longus tendon for anterior cruciate ligament reconstruction

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Abstract

The aim of this study was to evaluate the correlation between various anthropometric parameters and the graft diameter of the peroneus longus tendon (PLT).

We retrospectively analyzed the data of 156 patients who underwent anterior cruciate ligament reconstruction (ACLR) with the PLT graft at our institution. Anthropometric parameters, including height, weight, gender, age, duration of injury, and preinjury activity levels, were recorded. t tests, correlation coefficients (Pearson r), and a multiple linear regression analysis were used to evaluate the influence of these anthropometric variables on the diameter of the graft obtained.

The mean PLT graft diameter was 8.3 mm, and 21 patients (13.5%) had a diameter less than 8 mm; 85 patients (54.5%) had a diameter between 8 and 9 mm, and 50 patients (32.0%) had a diameter greater than or equal to 9 mm. The correlation analysis showed that height (P < .001), weight (P < .001), and duration of injury (P = .012) were significantly related to graft diameter. On the basis of these 3 predictors, the following regression equation was obtained: Diameter = 2.28 + 0.028*height (cm) + 0.013*weight (kg) + 0.289*duration of injury (0 or 1). Patients who were short and shin were more likely to own smaller graft diameters (<8 mm), especially the one ruptured his or her anterior cruciate ligament (ACL) over 3 months.

Height, weight, and duration of injury were associated with the diameter of PLT. They are important preoperative information for surgeon about the size of PLT and can be used for alternative graft source planning and patient counseling.

Level of evidence: IV

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