Combined Intramedullary Nail Coated With Antibiotic-Containing Cement and Ring Fixation for Limb Salvage in the Severely Deformed, Infected, Neuroarthropathic Ankle

Author:

Tomczak Cassandra1,Beaman Douglas1,Perkins Serene2

Affiliation:

1. Summit Orthopaedics, Portland, OR, USA

2. Legacy Institute for Surgical Education & Innovation, Legacy Research Institute, Portland, OR, USA

Abstract

Background: The severely deformed, infected, and unstable neuroarthropathic ankle is challenging to treat. We evaluated our preliminary experience and results of combined internal and external ring fixation for a complex neuropathic population. Methods: We retrospectively reviewed medical records and radiographs for 8 patients with unilateral severely deformed ankle neuroarthropathy associated with infection and ulceration. Treatment included single-stage reconstruction arthrodesis with an interlocked intramedullary nail coated with antibiotic-containing cement combined with ring fixation. Taylor Spatial Frame™ technology was used when the deformity was not amenable to acute correction (5 patients). Protected postoperative weightbearing was permitted. Their mean age averaged 55.6 (range, 42-66) years with an average body mass index of 38.4 (range, 28.7-49.6) kg/m2. Results: Seven patients achieved limb preservation. Average time for fusion healing was 15.2 (range, 12.2-22.2) weeks, frame time was 17.7 (range, 12.2-23.0) weeks, and follow-up was 34.1 (range, 24.1-68.8) months. All presenting wounds and infection successfully resolved. Reinker and Carpenter scale was excellent for 2 patients, good for 2 patients, and fair for 3 patients. Foot and Ankle Ability Measure averaged 59.0% (range, 39.3%-87.5%). One patient developed a recalcitrant calcaneal ulcer with osteomyelitis that required a transtibial amputation 17 months after successful ankle arthrodesis. Conclusions: Combined use of interlocked intramedullary nail and ring external fixation for neuroarthropathic ankle arthrodesis achieved a functional and clinically stable salvaged lower limb for most patients. Level of Evidence: Level IV, retrospective case series.

Publisher

SAGE Publications

Subject

Orthopedics and Sports Medicine,Surgery

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