The objective of this study was to evaluate the correlation between use rate of low intensity pulsed ultrasound (LIPUS) and time to bone healing for corrective osteotomy.Materials and Methods:
Nine patients treated with LIPUS after corrective osteotomy were evaluated. The diseases, osteotomy site, duration and use rate (= number of day used/number of day for rent, %) of LIPUS, and time to bone healing were investigated. The correlation between use rate and bone healing was analyzed. The use rates were compared with the patients who used LIPUS for the fracture treatments. For the hallux valgus and toe deformity cases, the term of bone healing was compared with the patients who were not treated with LIPUS.Results:
Six cases of hallux valgus, 2 cases of distal radius malunion, and one case of carpometacarpal arthropathy of thumb were treated with LIPUS after corrective osteotomy. The osteotomy sites were healed in all cases. The terms for the LIPUS usage were 65.6 ± 28.5 days. The use rate was 91.4 ± 7.1%. The use rate for the fracture treatments was 81.7 ± 18.8%. There was a significant difference (P < 0.02). The term for the bone healing was 89.0 ± 12.8 days. The correlation coefficient between use rate and bone healing was 0.24. The terms of bone healings in the hallux valgus and toe deformity cases were 92.8 ± 6.0 days and 101.6 ± 35.0 days for the patients with and without LIPUS, respectively.Discussion:
The use rate of LIPUS was higher in the patients who underwent osteotomy compared to the fracture patients. There was no significant correlation between the use rate and the term of bone healing.