![]() ![]() The most common adverse event was swelling in the foot, reported by five subjects (15.6%). The success/fail criteria was evaluated again at the 6- and 12-month followup, showing treatment success rates of 89% (23/26) and 90% (18/20), respectively. The overall success rate at the 12-week visit was 71% with low complications, significant pain improvement as well as improvement on the SF-36. All subjects were followed for 1 year after treatment at intervals of 12 weeks, 6, 9, and 12 months. The mean ESWT application time for each of the treatments was 24.6 +/- 16.6 minutes, and anesthesia time averaged 27.1 +/- 10.4 minutes. ESWT application was conducted using a protocol totaling 2,000 shocks for a total energy application of approximately 0.22 to 0.51 mJ/mm2 per treatment. All fractures were at least 10 (range, 10 to 833) weeks after injury, with a median of 23 weeks. In a prospective single-arm, multi-center study, 34 fractures were treated in 32 patients (two subjects had two independent fractures) with ESWT. Nonunion or delayed union of fractures in the proximal aspect of metatarsals 1 to 4 and Zone 2 of the fifth metatarsal were treated by high energy extracorporeal shock wave treatment (ESWT) to study the safety and efficacy of this method of treatment in a FDA study of the Ossatron device. All rights reserved.Įxtracorporeal shock wave treatment of non- or delayed union of proximal metatarsal fractures.Īlvarez, Richard G Cincere, Brandon Channappa, Chandra Langerman, Richard Schulte, Robert Jaakkola, Juha Melancon, Keith Shereff, Michael Cross, G Lee The findings of this study also suggest the use of LIPUS to be a cost effective treatment modality compared to surgical management. ![]() There is a role for the use of LIPUS in delayed union of fifth metatarsal fractures and can serve as an adjunct prior to consideration of surgery. Assuming that there were 10 delayed unions a year and 6 went on to non-union as previously suggested by a systematic review, the cost savings of using LIPUS (90% success rate 10 LIPUS machine and surgery for 1 non-union) vs operative intervention (surgery for 6 non-union) equates to a cost saving of £7765 a year. Smoking (p=0.014) was predictive of non-union. Twenty-seven (90%) patients went on to progress to union clinically and radiologically following LIPUS treatment. Type 2 fractures made up 43% of our cohort. There were thirty patients (9 males, 21 females) in this cohort. A retrospective review of patients who were treated with LIPUS following a delayed union of fifth metatarsal fracture was conducted over a three-year period. The aim of this study is to investigate the use of LIPUS treatment for delayed union of fifth metatarsal fractures. There are no studies looking at the success rate of low-intensity pulsed ultrasound (LIPUS) in fifth metatarsal fracture delayed unions to our knowledge. Teoh, Kar Hao Whitham, Robert Wong, Jenny F Hariharan, Kartik The use of low-intensity pulsed ultrasound in treating delayed union of fifth metatarsal fractures. ![]()
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