Extracorporeal shock-wave therapy compared with surgery for hypertrophic long-bone nonunions

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Extracorporeal shock-wave therapy compared with surgery for hypertrophic long-bone nonunions

J Bone Joint Surg Am. 2009 Nov;91(11):2589-97. doi: 10.2106/JBJS.H.00841.

Extracorporeal shock-wave therapy compared with surgery for hypertrophic long-bone nonunions.

Cacchio A, Giordano L, Colafarina O, Rompe JD, Tavernese E, Ioppolo F, Flamini S, Spacca G, Santilli V.

Source

Department of Physical Medicine and Rehabilitation, San Salvatore Hospital of L’Aquila, via L. Natali 1, 67100 L’Aquila, Italy. angelo.cacchio@tin.it

Erratum in

  • J Bone Joint Surg Am. 2010 May;92(5):1241.

Abstract

BACKGROUND:

The authors of several studies have recommended extracorporeal shock-wave therapy as an alternative to surgical treatment for long-bone nonunions. This study was performed to compare the results of extracorporeal shock-wave therapy produced by two different devices with those of surgical treatment in the management of long-bone nonunions.

METHODS:

One hundred and twenty-six patients with a long-bone nonunion were randomly assigned to receive either extracorporeal shock-wave therapy (Groups 1 and 2) or surgical treatment (Group 3). The patients in the shock-wave groups received four treatments with 4000 impulses of shock waves with an energy flux density of 0.40 mJ/mm(2) (Group 1) or 0.70 mJ/mm(2) (Group 2). The patients in the three groups had similar demographic characteristics, durations of nonunion, and durations of follow-up. Radiographic results (the primary outcome) and clinical results (the secondary outcomes) were determined before and three, six, twelve, and twenty-four months after treatment.

RESULTS:

The radiographic findings did not differ among the three groups of patients. At six months, 70% of the nonunions in Group 1, 71% of the nonunions in Group 2, and 73% of the nonunions in Group 3 had healed. Three and six months after treatment, the clinical outcomes in the two shock-wave groups were significantly better than those in the surgical group (p < 0.001). However, at both twelve and twenty-four months after treatment, there were no differences among the three groups, with the exception of the DASH score, which differed significantly between Groups 1 and 3 (p = 0.038) and between Groups 2 and 3 (p = 0.021) at twelve months.

CONCLUSIONS:

Extracorporeal shock-wave therapy is as effective as surgery in stimulating union of long-bone hypertrophic nonunions and yields better short-term clinical outcomes.

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