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The fate of augments to treat type-2 bone defects in revision knee arthroplasty

2004; British Editorial Society of Bone & Joint Surgery; Volume: 86-B; Issue: 2 Linguagem: Inglês

10.1302/0301-620x.86b2.13564

2044-5377

Jay Patel, John L. Masonis, Jeff Guerin, Robert B. Bourne, C H Rorabeck,

Knee injuries and reconstruction techniques

We report the five- to-ten year results of Anderson Orthopaedic Research Institute type-2 bone defects treated with modular metal augments in revision knee surgery. A total of 102 revision knee arthroplasties in patients with type-2 defects treated with augments and stems were prospectively studied. Seven patients (seven knees) had incomplete follow-up and 15 patients (16 knees) died with the arthroplasty in situ. The mean follow-up of the 79 remaining knees was 7 ± 2 years (5 to 11). The presence of non-progressive radiolucent lines around the augment in 14% of knees was not associated with poorer knee scores, the range of movement, survival of the component or the type of insert which was used (p > 0.05). The survival of the components was 92 ± 0.03% at 11 years (95% CI, 10.3 to 11.2). We recommend the use of modular augmentation devices to treat type-2 defects in revision knee surgery.