Using heat in the form of laser or radiofrequency has gained in popularity over the last 10 years. Uses for laser therapy in the shoulder are still limited. Research only supports its use for shoulder instability.
When the fibrous tissue surrounding a joint (the capsule) is torn or stretched, it’s causes joint laxity. This is another way to say “loose joint.” Joint laxity causes a joint to be unstable. In the case of the shoulder, this can lead to dislocation.
Currently, thermal devices are used to treat shoulder instability caused by damage to the capsule. Arthritis is a condition that primarily affects the bone and joint surfaces. Laser hasn’t been approved for use with arthritis at this time. More studies using laser are being done and may include arthritis in the future.