Clinical and ultrasound-monitored outcomes after MLS^® M-Hi laser therapy in tendinous and bursal disorders: an observational case series

L. Barni
Energy for Health [25], 2026

Background: Tendinous and bursal disorders are frequent sources of musculoskeletal pain and functional impairment. High-power laser therapy (HPLT) is used in rehabilitation settings for its analgesic, anti-inflammatory and biostimulatory effects, which may contribute to tissue repair.
Objective: To evaluate changes in pain, function and ultrasound-documented tissue morphology following laser therapy in patients with tendinous or bursal lesions.
Methods: Five outpatients with ultrasound-confirmed musculoskeletal soft-tissue pathology (mid-portion Achilles tendinopathy, supraspinatus tendinopathy with or without subacromial bursitis, lateral epicondylalgia with partial lesion of the common extensor tendon, and lateral collateral ligament sprain) underwent ten sessions of MLS^® M-Hi laser therapy. Pain intensity (VAS), condition-specific functional scores and ultrasound characteristics were assessed before and after treatment.
Results: Mean pain intensity decreased by 67% (VAS −4 points), and functional scores improved in all cases. Follow-up ultrasound showed reduced tendon or ligament thickness when previously increased, more regular fibrillar alignment, reduction or disappearance of hypoechoic areas, and reduction or resolution of bursal effusion and pathological vascularity. No adverse events were reported.
Conclusions: In this observational case series, MLS^® M-Hi laser therapy, used as part of a rehabilitation program, was followed by reductions in pain, improvements in patient-reported function and ultrasound changes compatible with tissue repair in tendinous and bursal lesions. Larger controlled studies are required to confirm these findings and to define optimal treatment parameters.