Accelerometer-based navigation improves early patient-reported outcomes after gap-balanced total knee arthroplasty

Dorian S Wood; Tara M Eckel; Kurt J Kitziger; Paul C Peters Jr; Brian P Gladnick

doi:10.1016/j.jor.2020.12.011

Accelerometer-based navigation improves early patient-reported outcomes after gap-balanced total knee arthroplasty

J Orthop. 2020 Dec 24:23:37-40. doi: 10.1016/j.jor.2020.12.011. eCollection 2021 Jan-Feb.

Authors

Dorian S Wood¹, Tara M Eckel², Kurt J Kitziger^{2

3}, Paul C Peters Jr^{2

3}, Brian P Gladnick^{2

3}

Affiliations

¹ Baylor Univeristy Medical Center, Department of Orthopaedic Surgery, 3500 Gaston Ave, Dallas, TX, 75246, USA.
² W.B. Carrell Memorial Clinic, Adult Hip and Knee Reconstruction, 9301 N. Central Expressway, Suite 500, Dallas, TX, 75231, USA.
³ Texas Health Presbyterian Hospital Dallas, Department of Orthopaedic Surgery, 8200 Walnut Hill Lane, Dallas, TX, 75231, USA.

Abstract

Objective: To investigate the effect of accelerometry-based navigation (ABN) on early clinical outcomes after TKA.

Methods: 71 TKAs were performed via ABN and 37 TKAs via standard instrumentation (STD). Patients were assessed at the second post-operative visit to determine early KOOS, JR scores.

Results: At average 2.7 months, mean KOOS, JR in the ABN group was 68.5 (range 34.2-100) compared to 62.5 (range 20.9-84.6) in the STD group (p = 0.045). Tourniquet time averaged 65.2min (range 51-79min) in STD group, compared with 70.7min (range 53-108min) in ABN group (p = 0.029).

Conclusion: Early KOOS, JR scores are improved with ABN for TKA.

Keywords: Accelerometer-based navigation; Patient reported outcomes; Total knee arthroplasty; Tourniquet time.