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Table 1 CAS TKA versus Conventional TKA PROMs

From: Computer and robotic – assisted total knee arthroplasty: a review of outcomes

 

Reported PROMs

Conventional TKA

CAS TKA

Author

Year

Navigation

Implants

Follow-up

Study size

 

Roberts [31]

2020

Stryker ASM/FNS

Triathalon

Mean 4.5 years

CAS = 90

OKS 41.59

OKS 41.74

 

CON = 78

Selvanayagam [32]

2019

Orthopilot

Columbus CR – Braun

Mean 4 years

CAS = 25

WOMAC 16 KSS 82

WOMAC 16.5 KSS 81.5

KSS 82

CON = 25

Hsu [26]

2019

Not reported

DePuy Press fit Sigma

Mean 8.1 years

CON = 56

WOMAC 93.9

 

HSS 91.7

WOMAC 93.5

 

HSS 89.2

CON ROM 126 CAS ROM 127

CAS = 56

D’Amato [33]

2018

Stryker Imageless

Scopio/Optetrack PS

10 years

CON = 45

KOOS 78.6

KSS-F 87.4

 

KOOS 82.3

KSS-F 85.0

  

CAS = 48

Petursson [34]

2018

Not reported

Not stated

2 years

CAS = 87

KOOS 88.2

KSS 69.7

EQ-5D 88

KOOS 85.6

KSS 69.2

EQ-5D 85.9

 

CON = 80

Kim [35]

2017

BrainLab

NextGen PS

15 years

CON = 141

WOMAC 14

KSS 92

 

WOMAC 15

KSS 93

 

CON ROM 128 CAS ROM 127

CAS = 141

Goh [36]

2017

BrainLab

Not stated

2 years

CON = 76

OKS 33.7

KSS 37.1

SF-36 physical 34.9

OKS 36.4

KSS 36.3

SF-36 physical 32.2

 

CAS = 38

Ollivier [37]

2017

Not reported

Zimmer Next Gen

Mean 11 years

CAS = 40

KOOS 86.75

KSS 82

SF-12 physical 73

KOOS 85.5

KSS 82.5

SF-12 physical 72

 

CON = 40

Todesca [38]

2016

Amplivision

Amplitude

Mean 6.4 years

CAS = 121

WOMAC 22

KSS 89

HSS 90

WOMAC 20

KSS 96

HSS 94

CON ROM 125

CON = 117

CAS ROM 128

Baumbach [18]

2016

Orthopilot

Aesculap Search prosthesis

Mean 10 years

CON = 46

HSS 82.1

KSS 135.6

SF-36 physical 48.3

HSS 82.6

KSS 141.3

SF-36 physical 43.3

 

CAS = 50

Song [39]

2016

Orthopilot

e.motion Braun

9 years

CAS = 37

WOMAC 9.9

KSS 82.2

HSS 88.2

WOMAC 11.2

KSS 83.8

HSS 91.9

 

CON = 38

Ouanezar [40]

2016

Amplivision

Cementless mobile-bearing SCORE – Amplitude

10 years

CAS = 81

 

KSS 163

  

KS 164

 

CON ROM 114 CAS ROM 114

CON = 57

Cip [41]

2014

BrainLab

Next Gen Mobile bearing and PS Flex

Mean 5.5 years

CAS = 74

WOMAC 25.9

KSS 93.4

HSS 90.6

WOMAC 18.1

KSS 96

HSS 93.3

CON ROM 120

CON = 79

CAS ROM 119

Lin [42]

2013

BrainLab

PS NextGen Zimmer

2 years

CAS = 30

 

KSS 29.6

  

KSS 29.4

 

CON ROM 128 CAS ROM 128

CON = 35

Thiengwittayaporn [43]

2013

Zimmer/Medtronic AxiEM electromagnetic navigation system

PS NextGen Zimmer

5 years

CAS = 58

 

KSS 84.5

  

KSS 85

 

CON ROM 121 CAS ROM 124

CON = 58

Lützner [44]

2013

 

Scorpio PCS

5 years

CAS = 34

 

KSS 150.2

Euroquol 61.7

 

KSS 149

Euroquol 66.8

 

CON = 33

Tolk [45]

2012

Brainlab

LCS mobile bearinf

5 years

CAS = 50

OKS 39.4

KSS 155.6

 

OKS 39.1

KSS 156.4

 

CON ROM 112.8 CAS ROM 111.8

CON = 50

Harvie [46]

2012

Stryker

Duracon

Mean 5 years

CON = 22

WOMAC 21.84

KSS 148.1

SF-36 physical 65

WOMAC 15.97

KSS 157

SF-36 physical 45

 

CAS =24

Hoppe [47]

2012

Orthosoft Navitrack

Innex UCOR TKA (Zimmer) with rotating platform

5 years

CAS = 28

 

KSS 94

  

KSS 94.6

 

CON ROM 117 CAS ROM 110

CON = 28

Seon [48]

2009

Orthopilot

e.motion

Not available

CAS = 43

WOMAC 70.9

 

HSS 67.2

WOMAC 70.9

 

HSS 67.2

CON ROM 120.2 CAS ROM 121.4

CON = 42

Kim [35]

2007

Brainlab

PFC -Sigma

Mean 2.3 years

CAS = 115

 

KSS 93

HSS 89

 

KSS 94

HSS 90

CON ROM 125 CAS ROM 127

CON = 115

  1. CAS Computer-assisted TKA, CON Conventional TKA, ROM Range of motion, KSS Knee Society Score, HSS Hospital for Special Services Score, SF-36 Short-form 36, OKS Oxford knee score, WOMAC Western Ontario and McMaster Universities osteoarthritis index