Cementless versus cemented Oxford unicompartmental knee arthroplasty: early results of a non-designer user group

Purpose Although fewer tibial radiolucent lines are observed in cementless Oxford unicompartmental knee arthroplasty (UKA) compared with cemented Oxford UKA, an independent comparative study on this topic is lacking. Methods In this multicentre retrospective study, a cohort of 60 consecutive cases o...

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Published in:Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2017-03, Vol.25 (3), p.703-709
Main Authors: Kerens, B., Schotanus, M. G. M., Boonen, B., Boog, P., Emans, P. J., Lacroix, H., Kort, N. P.
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Arthritis
Arthroplasty, Replacement, Knee - methods
Bone Cements
Case-Control Studies
Designers
Female
Humans
Hydroxyapatite
Interfaces
Joint replacement surgery
Kaplan-Meier Estimate
Knee
Knee Prosthesis
Male
Medicine
Medicine & Public Health
Middle Aged
Orthopedics
Osteoarthritis, Knee - surgery
Patients
Polymethyl methacrylate
Postoperative Complications - diagnostic imaging
Prostheses
Prosthesis Design
Retrospective Studies
Tibia - diagnostic imaging
Treatment Outcome
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Summary:Purpose Although fewer tibial radiolucent lines are observed in cementless Oxford unicompartmental knee arthroplasty (UKA) compared with cemented Oxford UKA, an independent comparative study on this topic is lacking. Methods In this multicentre retrospective study, a cohort of 60 consecutive cases of cementless Oxford UKA is compared with a cohort of 60 consecutive cases of cemented Oxford UKA. Radiolucent lines, survival, perioperative data and clinical results were compared. Results No complete tibial radiolucent lines were observed in either group. Seventeen per cent of partial tibial radiolucent lines were observed in the cementless group versus 21 % in the cemented group (n.s.). The percentage of tibial radiolucent zones was 4 versus 9 %, respectively ( p  = 0.036). Survival rates were 90 % at 34 months for the cementless group and 84 % at 54 months for the cemented group (n.s.). Mean operation time was 10 min shorter in the cementless group ( p  
ISSN:0942-2056
1433-7347
DOI:10.1007/s00167-016-4149-3