A passive range of motion device is disclosed. The passive range of motion device is configured to deliver passive rotational motion to a joint, such as a hip joint. Although the use of passive range of motion devices to deliver postoperative physical therapy to hip or shoulder joints is widespread, these devices deliver motion therapy in only one plane. The hip and shoulder joints, however, allowing motion of the leg or arm in multiple planes. A device for delivering passive range of motion therapy in multiple planes to a joint, such as a hip joint or a shoulder joint, is described. The device may have a processing unit for storing user information and device status information. The device may be controlled by a controller attached to the device, or remotely, such as by a remote desktop computer or a mobile computing device.