Comparing HILT, Steroid Injection, and Manual Therapy for Frozen Shoulder

Nd:YAG laser (1064 nm) applied to anterior, lateral, posterior glenohumeral joint aspects. Three-phase protocol per session: (1) 10 J/cm² @ 10 Hz; (2) 12 J/cm² @ 2000 Hz; (3) 10 J/cm² @ 15 Hz. Total energy \~1200 J/session. Frequency: 2 sessions/week for 6 weeks (12 sessions total). Delivered by trained PTs.

Single injection into the glenohumeral joint under ultrasound guidance. Consists of 40 mg methylprednisolone acetate combined with 4 ml of 1% lidocaine hydrochloride. Delivered at baseline by an experienced orthopedic physician.

Skilled hands-on techniques including glenohumeral joint mobilizations (Maitland grades III-IV), posterior capsule stretching, scapular mobilization, and soft tissue techniques targeting restricted tissues. Session duration: \~30 minutes. Frequency: 2 sessions/week for 6 weeks (12 sessions total). Delivered by PTs specialized in manual therapy.

Standardized program including pendulum exercises, active-assisted range of motion exercises (e.g., wand, wall climbs), stretching (e.g., cross-body, sleeper stretch), and progressive resistive exercises using resistance bands. Includes supervised instruction/progression and a daily home exercise program component. Supervised instruction frequency: 2 sessions/week for first 6 weeks, then 1 session/week for next 6 weeks (total 18 supervised sessions over 12 weeks). Delivered by trained PTs.