Anterior cruciate ligament (ACL) tear is one of the most common knee injuries affecting a-youngactive individuals. Apart from being the most preferable therapy for ACL tear, the reconstructive surgery sometimes brings a reluctance to the patients. There is prolotherapy, a non-surgical intra-articular injection therapy, which uses hypertonic dextrose solution to promote the healing of ACL by mechanism of inflammation and proliferation. We bring up a case of 25- year-old male with partial tear of left ACL who had prior sports injury on the left knee. Anterior drawer and Lachman test showed a definite anterior tibial translation. He received 5 prolotherapy and structured quadriceps strengthening exercises. 15 weeks post therapy, full knee range of motions were achieved and the patient was able to climb and decent stairs without pain and instability. MRI post-treatment showed fibrous tissue around the ACL.

Keywords : ACL tear, dextrose prolotherapy