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Management of humeral nonunions following failed surgical fixation.

Abstract：

INTRODUCTION:Management of humerus nonunions with previously failed fixation presents a complex problem. There are multiple revision fixation strategies, of which compression plating is a mainstay. The aim of this study was to assess the results of open reduction and direct compression plating without the need for autograft or allograft in the setting of revision humerus open reduction internal fixation. METHODS:This study is a retrospective analysis of 19 patients treated between 2008 and 2017 for humerus nonunions following failed fixation who were treated by a single surgeon using direct compression plating with bone graft substitutes. Patients were treated with neurolysis of the radial nerve, hardware removal, debridement of the nonunion site with shortening osteotomies, compression plating, and augmentation with bone graft substitutes. All patients were followed until radiographic and clinical union. RESULTS:Nineteen patients were identified for the study and 17 had adequate follow-up for final analysis. Humeral union was achieved in 16/17 (94.1%) patients with a mean time to union of 23 weeks. Two patients required a repeat compression plating with bone graft substitute to achieve union. The one patient with a nonunion radiographically reported minimal clinical symptoms and opted for no revision surgery. An association with the index procedure was seen, as three out of four of the patients who experienced radial nerve palsies after their index procedure subsequently experienced a radial nerve palsy after the procedure to repair their nonunion. All patient's all experienced a return of function in their radial nerve either back to baseline or improved from before the revision nonunion surgery. CONCLUSION:The use of humeral shortening osteotomy and compression plating without autograft or allograft is a viable option for management of humeral nonunions which avoids the morbidity associated with autograft harvest. The patients with radial nerve palsy after the index procedure are likely to have a transient radial nerve palsy as well after the revision surgery necessitating proper informed consent prior to the operation.

journal_name

Arch Orthop Trauma Surg

journal_title

Archives of orthopaedic and trauma surgery

authors

Lee A,Wait T,Shah K,Osadebe U,Kergosien M,Dutta A

doi

10.1007/s00402-020-03577-2

subject

Has Abstract

pub_date

2020-10-29 00:00:00

eissn

0936-8051

issn

1434-3916

pii

10.1007/s00402-020-03577-2

pub_type

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Management of humeral nonunions following failed surgical fixation.