Accuracy of cervical pedicle screw placement with a robotic guidance system via the open midline approach.

Objective: An increasing number of studies have shown that a robotic guidance system (RGS) can provide accurate cervical pedicle screw (CPS) placement. The accuracy of CPS placement with an RGS has mostly been evaluated according to the magnitude of pedicular cortical violation. However, an RGS assists in pedicle screw (PS) placement by directly indicating the preplanned trajectory in the operative field.

Relationship Between the Relative Length of the Second Metatarsal and Occurrence of Metatarsalgia in Patients With Hallux Valgus.

Background: Patients with hallux valgus (HV) may develop metatarsalgia, which is partly attributed to second metatarsal relative length (RL2M). However, no study has analyzed RL2Ms measured by various methods as predictors for metatarsalgia in HV patients. This study aimed to investigate the predictors for metatarsalgia in HV patients and calculate the cutoff values for metatarsalgia in preoperative planning for lesser metatarsal shortening osteotomy.

Predictors of abemaciclib discontinuation in patients with breast cancer: a multicenter retrospective cohort study.

Objective: This study explored the predictors of abemaciclib discontinuation, a cyclin-dependent kinase 4 and 6 inhibitor, in patients with breast cancer.

Material And Methods: Between November 2018 and March 2023, 147 patients with breast cancer treated with abemaciclib at Osaka Medical and Pharmaceutical University Hospital and Kindai University Nara Hospital were included. The exclusion criteria were as follows: lack of blood testing within 2 weeks prior to starting abemaciclib therapy, transfer to another facility after the commencement of abemaciclib therapy, and discontinuation of abemaciclib therapy due to the diagnosis of another cancer.

Impact of landmark crater creation on improving accuracy of pedicle screw insertion in robot-assisted scoliosis surgery.

Purpose: This study evaluated the impact of the Landmark Crater (LC) method on pedicle perforation rates in robot-guided surgery for pediatric scoliosis for each pedicle diameter.

Methods: Seventy-six scoliosis patients underwent robot-assisted posterior spinal fusion. The cohort consisted of 19 male and 57 female patients, with a mean ± standard deviation age of 17.