Effect of manipulation technique using ultrasound-guided cervical nerve root block on range of motion at the shoulder joint in frozen shoulder: a retrospective study.

Purpose: The aim of this study was to evaluate the range of motion (ROM) at the shoulder joint before and after silent manipulation.

Methods: This retrospective study included all patients who underwent silent manipulation at our institution between January 2013 and December 2017. In total, 1,665 shoulders in 1,610 patients (519 men, 1,146 women; mean age 55.