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Autogenous iliac crest bone grafting for tibial nonunions revisited: does approach matter?

Abstract：

BACKGROUND:Tibial nonunion remains a considerable burden for patients and the surgeons who treat them. In recent years, alternatives to autogenous grafts for the treatment of tibial nonunions have been sought. The purpose of this study was to evaluate the efficacy of autogenous iliac crest bone graft (ICBG) in the treatment of tibial shaft nonunions. MATERIAL AND METHODS:Sixty-nine patients were identified who underwent ICBG for repair of atrophic or oligotrophic tibial nonunion and had complete data with at least one year of follow-up (mean 27.9 months). Surgical treatments consisted of revision/supplemental fixation ± ICBG. Surgical approaches for graft placement were either posterolateral (PL), anterolateral (AL), or direct medial (DM). Healing status, time to union, postoperative pain, and functional outcomes were assessed. RESULTS:Bony union was achieved by 97.1% (67/69) of patients at a mean time of 7.8 ± 3.2 months postoperatively. There was no significant difference in mean time to union between the three surgical approach groups: (PL (44.9%) = 7.3 months, AL (20.3%) = 9.2 months, DM (34.8%) = 7.6 months; p = 0.22). Intraoperative cultures obtained at the time of nonunion surgery were positive in 27.5% of patients (19/69). Positive cultures were associated with need for secondary surgery as 8/19 patients (42.1%) with positive cultures required re-operation. Two out of four patients that developed iliac donor site hematomas/infections requiring washout had positive intraoperative cultures as well. There was no difference in final SMFA among the three surgical approach groups. CONCLUSIONS:Autogenous ICBG remains the gold standard in the management of persistent tibial nonunions regardless of surgical approach. There is a small risk for complication at the iliac crest donor site. Given the high union rate, autogenous iliac crest bone grafting for tibial nonunion remains the gold standard for this difficult condition. LEVEL OF EVIDENCE:Level III.

journal_name

Arch Orthop Trauma Surg

journal_title

Archives of orthopaedic and trauma surgery

authors

Konda SR,Littlefield CP,Carlock KD,Ganta A,Leucht P,Egol KA

doi

10.1007/s00402-020-03735-6

subject

Has Abstract

pub_date

2021-01-08 00:00:00

eissn

0936-8051

issn

1434-3916

pii

10.1007/s00402-020-03735-6

pub_type

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Autogenous iliac crest bone grafting for tibial nonunions revisited: does approach matter?