Blood Flow Restriction Training for Meniscus Repair Surgery

Area of Science:

• Orthopedics
• Sports Medicine
• Rehabilitation Science

Background:

• Meniscal repair surgery often leads to lower extremity muscle atrophy due to weight-bearing and range-of-motion restrictions.
• Blood flow restriction (BFR) training, using occlusive devices during exercise, is a viable method to mitigate this postoperative muscle loss.
• BFR with low-load training may induce muscle hypertrophy comparable to high-load training.

Purpose of the Study:

• To investigate the use of BFR in the postoperative rehabilitation protocol for patients undergoing meniscal repair.
• To assess BFR's efficacy in limiting muscle atrophy and facilitating return to prior function and sports.

Main Methods:

• An automated BFR device was used to determine limb occlusion pressure (LOP) and apply 50-80% LOP for lower extremity exercises.
• Patients followed a 3-phase rehabilitation protocol, incorporating BFR exercises with progressive weight-bearing and range of motion.
• Exclusion criteria included severe cardiac or vascular disease, uncontrolled hypertension, bleeding disorders, and deep vein thrombosis history.

Main Results:

• Systematic review data indicate that low-load BFR training enhances muscle strength and hypertrophy compared to low-load training alone.
• No significant differences were observed in Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales between the BFR and control groups.

Conclusions:

• BFR training shows promise in mitigating muscular atrophy following meniscal repair surgery.
• Incorporating BFR into postoperative rehabilitation may aid in patient recovery and facilitate a return to sports activities.