Journal of Musculoskeletal Trauma

Original Articles

Treatment of Nonunion in the Long Bone with Low Intensity Pulsed Ultrasound (LIPUS) and LASER: In Ho Jeon, Chang Wug Oh, Sung Jung Kim, Hee Soo Kyung, Il Hyung Park, Byung Chul Park, Joo Chul Ihn, Jun Young Yeo; J Korean Soc Fract 2003;16(2):177-185. Published online April 30, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.2.177

Abstract PDF: PURPOSE
Low-intensity, pulsed ultrasound (LIPUS) has demonstrated a stimulation and acceleration of the normal fracture-repair process in cellular bases as well in animal and human models. In this study, the adjunctive effect of LIPUS and LASER was investigated in established nonunion of the long bones.
MATERIALS AND METHODS
Study group consisted of eight patients to whom conventional bone graft and adjunctive LIPUS and LASER was applied. On the other hand, eight patients in the control group underwent bone graft only. Eleven men and five women were included in this study and the average age of the patients was 41.7 years (range, 19~62 years). Six of the tibias and ten of the femurs met the criteria for established nonunion. The average fracture age, the post-fracture period before the start of LIPUS/LASER treatment, was 502 days.
RESULTS
Seven of the ten nonunions who were treated by LIPUS and LASER healed completely in an average treatment time of 141 days (range, 101~202 days) and otherwise, in control group, five of the eight nonunions healed completely, in 240 days (range, 183~283 days).
CONCLUSION
This clinical study showed a positive effect of LIPUS and LASER on the rate of osseous repair, especially accelerated time to initial callus cortical bridging compared to that of conventional treatment.

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Effect of the Ultrasound and LASER in the fracture healing in rabbits: Jun Young Yang, Kwang Jin Rhee, June Kyu Lee, Deuk Soo Hwang, Hyun Dae Shin, Jun ho Lee; J Korean Soc Fract 2001;14(3):305-312. Published online July 31, 2001; DOI: https://doi.org/10.12671/jksf.2001.14.3.305

Abstract PDF: PURPOSE
To study the effectiveness of the ultrasound and LASER on the fracturehealing in rabbits.
MATERIALS AND METHODS
This study was performed on rabbits using the Hi-Tech 2000 (Ultrasound+LASER) which was made in our institute. After anesthesia of the rabbit, the shaft of tibia was fractured with Gigli saw under aseptic condition, and then intramedullary nailing using K-wire was performed. We evaluated left tibia as control and right tibia as experimental. we applicated ultrasound and LASER from 7 days after operation and sacrificed at 3 weeks and 5 weeks after operation. Gross findings, simple radiologic findings, and histologic findings were evaluated by modified Zorlu scoring system. With use of T-test of SAS system ( level of significance, P < 0.05 ), difference between left and right tibia were evaluated to be determined the effect of ultrasound and LASER on the fracture-healing.
RESULTS
At postoperative 3 weeks, differences were noted in 4 cases but we could detect no significant difference between left and right side. At postoperative 5 weeks, differences were noted 6 cases and significant difference was noted.
CONCLUSIONS
Seeing this results, ultrasound and LASER treatment was effective in fracture healing. However we think that additional studies for accurate quantitative and qualitative analysis, biomechanical test in callus, microangiographic study and clinical research to determine the effectiveness of ultrasound and LASER in clinical field are needed.

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