Faster improvement in outcome scores in posterior stabilised total knee arthroplasty compared to medial congruent system with posterior cruciate ligament retained

Most studies comparing medial pivot to the posterior stabilised (PS) systems sacrifice the PCL. It is unknown whether retaining the PCL in the Medial Congruent (MC) system may provide further benefit compared to the more commonly used PS system. A retrospective review of a single-surgeon’s registry...

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Bibliographic Details
Published in:Musculoskeletal surgery 2024-03, Vol.108 (1), p.87-92
Main Authors: Lee, W. C., Foong, C. M. B., Khoo, K. M. S., Kwan, Y. H., Kunnasegaran, R.
Format: Article
Language:English
Subjects:
Arthroplasty, Replacement, Knee
Humans
Knee Joint - surgery
Knee Prosthesis
Medicine
Medicine & Public Health
Original Article
Orthopedics
Osteoarthritis, Knee - surgery
Posterior Cruciate Ligament - surgery
Range of Motion, Articular
Surgical Orthopedics
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Summary:Most studies comparing medial pivot to the posterior stabilised (PS) systems sacrifice the PCL. It is unknown whether retaining the PCL in the Medial Congruent (MC) system may provide further benefit compared to the more commonly used PS system. A retrospective review of a single-surgeon’s registry data comparing 44 PS and 26 MC with PCL retained (MC-PCLR) TKAs was performed. Both groups had similar baseline demographics. The PS and MC-PCLR groups had similar pre-operative range of motion (ROM) (PS:104º ± 20º vs. MC-PCLR: 101º ± 19º, p  = 0.70), Oxford Knee Score (OKS) (PS: 27 ± 6 vs. MC-PCLR: 26 ± 7, p  = 0.62), and Knee Society Scoring System (KS) Function Score (KS–FS) (PS: 52 ± 24 vs. MC-PCLR: 56 ± 23, p  = 0.49). The pre-operative KS Knee Score (KS–KS) was significantly lower in the PS group (PS: 44 ± 14 vs. MC-PLR: 53 ± 18, p  
ISSN:2035-5106
2035-5114
DOI:10.1007/s12306-023-00797-8