Kinematic versus mechanical alignment for primary total knee arthroplasty with minimum 2 years follow-up: a systematic review

Special Issue: "HIP and KNEE Replacement" Guest Editors: C Batailler, S Lustig, J Caton

Open Access

Review

Table 1

Characteristic of the studies.

Studies	Location	Study design	Minimum follow-up (m)	Sample size		Mean age		Female		BMI (mean)		Prosthesis design	Operative method	Clinic al measurements	Radiological measurements	Other measurements
				KA	MA	KA	MA	KA	MA	KA	MA
Dossett et al. [18]	United States	PRCT	24	44	44	66	66	41	38	29	32	KA: Vanguard, CR, FB, SR, cemented, all PR	KA: PSI	OKS, WOMAC, KSS, ROM	HKA, AKA, JLOA, FMA, TMA	Complications
												MA: Vanguard, CR, FB, SR, cemented, all PR	MA: Conventional instruments	OKS, WOMAC, KSS, ROM	HKA, AKA, JLOA, FMA, TMA	Complications
Yeo et al. [39]	South Korea	PRCT	96	30	30	72	74	27	25	27	26	KA: NexGen, CR, FB, MR, cemented, partial PR	KA: ROBDOC system, robotic aassisted	HSS, WOMAC, KSS, ROM	HKA, FMA, TMA, TS	Gait analysis
												MA: NexGen, CR, FB, MR, cemented, partial PR	MA: Robotic aassisted	HSS, WOMAC, KSS, ROM	HKA, FMA, TMA, TS	Gait analysis
Laende et al. [40]	Canada	PRCT	24	24	23	64	63	16	17	36	34	KA: Triathlon, CR, FB, SR, cemented, all PR	KA: PSI	OKS, satisfaction, UCLA	HKA, MPTA	Tibial migration
												MA: Triathlon, CR, FB, SR, cemented, all PR	MA: Computer navigation	OKS, satisfaction, UCLA	HKA, MPTA	Tibial migration
McEwen et al. [41]	Australia	PRCT	24	41	41		65	NA			31	KA: Triathlon, CR, FB, SR, cementless femur, cemented tibia, partial PR	KA: computer navigation	OKS, FJS, KOOS, JR, ROM	HKA, FMA, TMA, TS, JLOA, JLCA, PTA	Intraoperative gap laxity, soft tissue release, 4 specific clinical questions, complications
												MA: Triathlon, CR, FB, SR, cementless femur, cemented tibia, partial PR	MA: computer navigation	OKS, FJS, KOOS, JR, ROM	HKA, FMA, TMA, TS, JLOA, JLCA, PTA
Young et al. [38]	New Zealand	PRCT	60	47	48	72	70	25	26	30	31.5	KA: Triathlon, CR, FB, SR, cemented, partial PR	KA: PSI	OKS, WOMAC, FJS, KSS, VAS	HKA, FMA, TMA, TS	Intraoperative gap laxity, soft tissue release, complications
												MA: Triathlon, CR, FB, SR, cemented, partial PR	MA: Computer navigation	OKS, WOMAC, FJS, KSS, VAS	HKA, FMA, TMA, TS

NA: Not Applicable, PRCT: Prospective Randomized Controlled Trial, KA: Kinematic Alignment, MA: Mechanical Alignment, CR: Cruciate-Retaining, FB: Fixed-Bearing, SR: Single Radius, MR: Multi-Radius, PR: Patella Resurfacing, PSI: Patient-Specific Instrument, OKS: Oxford Knee Score, WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index, KSS: Knee Society Score, ROM: Range of Motion, FJS: Forgotten Joint Score, VAS: Visual Analogue Scale, HSS: Hospital for Special Surgery knee score, UCLA: University of California at Los Angeles Loneliness score, KOOS JR: Knee Injury and Osteoarthritis Outcome Score Junior, HKA: Hip-Knee-Ankle angle, AKA: Anatomic Knee Angle, JLOA: Joint Line Orientation Angle, FMA: Femoral component relative to Mechanical Axis, TMA: Tibial component relative to Mechanical Axis, TS: Tibial Slope, MPTA: Medial Proximal Tibial Angle, JLCA: Joint Line Convergence Angle, PTA: Patellar Tilt Angle.

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