{Reference Type}: Case Reports {Title}: Application of tenotomy on Korean native cattle (Hanwoo) with spastic paresis symptoms in the field. {Author}: Ro Y;Choi W;Hong L;Min K;Ryu I;Kim D; {Journal}: J Vet Sci {Volume}: 24 {Issue}: 3 {Year}: 2023 May {Factor}: 1.603 {DOI}: 10.4142/jvs.23018 {Abstract}: Bovine spastic paresis (BSP) is a neuromuscular disorder characterized by hypertension and stiffness of hindlimb. Two Korean native cattle (Hanwoo) calves developed BSP or BSP-like symptoms, and a tenotomy of superficial tendon of medial head and deep tendon of lateral head of gastrocnemius muscle was performed for treatment. A cast was applied postoperatively to prevent muscle rupture and was removed three weeks later. The prognosis was evaluated at 3 weeks, 6 and 18 months postoperatively. Neither calf showed any other postoperative sequelae. This is the first case study to report the diagnosis, treatment, and prognosis of BSP in Hanwoo.