Abstract:Purpose: To compare the clinical efficacy of tarsal sinus approach combined with counterhead screw and minimally invasive locking plate and lateral L-shaped approach combined with calcaneal anatomical locking plate in the treatment of Sanders Ⅱ and Ⅲ calcaneal fractures. Methods: A retrospective analysis was performed on 44 feet of 40 patients with Sanders type Ⅱ and Ⅲ calcaneal fractures admitted to our hospital from July 2018 to August 2021. According to different treatment methods, they were divided into group A (tarsal sinus approach combined with counterhead screw and minimally invasive locking plate) with 21 feet and group B (traditional lateral L-shaped approach combined with anatomical locking plate of calcaneal bone) with 23 feet. Results: The time of preoperative preparation in group A was shorter than that in group B, and the difference was statistically significant (P<0.05); The operative time of group A was shorter than that of group B, and the difference was statistically significant (P<0.05); The amount of intraoperative blood loss in group A was less than that in group B, and the difference was statistically significant (P<0.05); The incision length in group A was shorter than that in group B, and the difference was statistically significant (P<0.05); VAS score of group A on the first postoperative day was lower than that of group B, and the difference between groups was statistically significant (P<0.05); Skin edge necrosis occurred in two feet in group A and healed after dressing change, while incision infection occurred in one foot, skin edge necrosis occurred in three feet, flap necrosis occurred in three feet, and subtalar arthritis occurred in one foot in group B.Conclusions: The minimally invasive locking bone plate combined with countersunk screw through the tarsal sinus approach for the treatment of Sanders type Ⅱ and Ⅲ calcaneal fractures has the advantages of short preoperative preparation time, short operation time, less intraoperative blood loss, small incision and fewer complications, etc., also has good clinical efficacy and worthy of clinical promotion.