1.5-Stage Exchange Arthroplasty for Total Knee Arthroplasty Periprosthetic Joint Infections.
J Arthroplasty
; 36(3): 1114-1119, 2021 03.
Article
in En
| MEDLINE
| ID: mdl-33162276
ABSTRACT
BACKGROUND:
Periprosthetic joint infection (PJI) in total knee arthroplasty (TKA) is a challenging problem. The purpose of this study was to outline a novel technique to treat TKA PJI. We define 1.5-stage exchange arthroplasty as placing an articulating spacer with the intent to last for a prolonged time.METHODS:
A retrospective review was performed from 2007 to 2019 to evaluate patients treated with 1.5-stage exchange arthroplasty for TKA PJI. Inclusion criteria included articulating knee spacer(s) remaining in situ for 12 months and the patient deferring a second-stage reimplantation because the patient had acceptable function with the spacer (28 knees) or not being a surgical candidate (three knees). Thirty-one knees were included with a mean age of 63 years, mean BMI 34.4 kg/m2, 12 were female, with a mean clinical follow-up of 2.7 years. Cobalt-chrome femoral and polyethylene tibial components were used. We evaluated progression to second-stage reimplantation, reinfection, and radiographic outcomes.RESULTS:
At a mean follow-up of 2.7 years, 25 initial spacers were in situ (81%). Five knees retained their spacer(s) for some time (mean 1.5 years) and then underwent a second-stage reimplantation; one of the five had progressive radiolucent lines but no evidence of component migration. Three knees (10%) had PJI reoccurrence. Four had progressive radiolucent lines, but there was no evidence of component migration in any knees.CONCLUSIONS:
1.5-stage exchange arthroplasty may be a reasonable method to treat TKA PJI. At a mean follow-up of 2.7 years, there was an acceptable rate of infection recurrence and implant durability.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Prosthesis-Related Infections
/
Arthroplasty, Replacement, Knee
/
Knee Prosthesis
Type of study:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Arthroplasty
Journal subject:
ORTOPEDIA
Year:
2021
Document type:
Article
Affiliation country:
Morocco