title: [High energy extracorporeal shockwave therapy (ESWT) in pseudarthrosis].
abstract: The gold standard for treatment of pseudarthrosis is operation with osteosynthesis and grafting. More than 10 years ago, extracorporeal shock wave therapy (ESWT) was additionally introduced as a noninvasive and low-risk treatment for pseudarthrosis. The aim of our prospective study was to analyze the treatment effect in a homogeneous group of patients and to develop prognostic factors. Forty-three consecutive patients were included in this study. All patients had been operated on for trauma or undergone selective osteotomy and had developed pseudarthrosis that persisted for 9 months. All patients received high-energy ESWT (0.6 mJ/mm2) with 3000 impulses (Siemens Osteostar) in one session under regional anesthesia. To differentiate active from inactive pseudarthrosis, a bone scintigraphy was compulsory. Clinical and radiological follow-ups were done at 4-week intervals starting 8 weeks after ESWT for 9 months. Cortical bridging was found in 31 of 43 (72.1%) pseudarthroses at 4.0 +/- 0.6 months after ESWT. Of 31 (80.6%) successfully treated patients, 25 had a positive scintigraphy compared to 4 of 12 (33.3%) treatment failures. Of 35 (82.9%) patients with a positive bone scintigraphy, 29 had bony healing compared to 2 of 8 (25%) patients with a negative bone scintigraphy. Six of these eight patients smoked more than 20 cigarettes a day. ESWT is still a clinically experimental treatment method. The absence of complications justifies its use for pseudarthrosis treatment. Further controlled studies are mandatory.
authors.affiliation: Orthopädische Universitäts- und Poliklinik, Johannes-Gutenberg-Universität, Langenbeckstrasse 1, 55101 Mainz. schoelln@mail.uni-mainz.de
authors.forename: C
authors.initials: C
authors.lastname: Schoellner
authors.forename: J D
authors.initials: JD
authors.lastname: Rompe
authors.forename: J
authors.initials: J
authors.lastname: Decking
authors.forename: J
authors.initials: J
authors.lastname: Heine
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016025:Bone Transplantation; D015331:Cohort Studies; D005260:Female; D005593:Fracture Fixation, Internal; D017102:Fracture Healing / Q000502:physiology; D006801:Humans; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D010027:Osteotomy; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000628:therapy*; D011446:Prospective Studies; D011542:Pseudarthrosis / Q000000981:diagnostic imaging / Q000628:therapy*; D011859:Radiography; D016896:Treatment Outcome