An accelerometer-based portable navigation system improved prosthetic alignment after total knee arthroplasty in 3D measurements

Ueyama, Hideki; Minoda, Yukihide; Sugama, Ryo; Ohta, Yoshiji; Yamamura, Kazumasa; Nakamura, Suguru; Takemura, Susumu; Nakamura, Hiroaki

doi:10.1007/s00167-018-5082-4

Cited by 27 publications

(21 citation statements)

References 29 publications

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“…Ikawa et al [10] conducted a prospective RCT study and reported that 121 unilateral ABN assisted TKA had 287 ml less average blood loss than 120 unilateral conventional TKA (p < 0.05). However, comparable blood loss was proposed by other investigations [23,24]. A recent systematic review and meta-analysis [8] also revealed an insignificant difference in postoperative blood lossrelated indicators between TKA using the ABN and the conventional system.…”

Section: Discussionmentioning

confidence: 60%

Usefulness of an accelerometer-based navigation system in bilateral one-stage total knee arthroplasty

Laoruengthana

Rattanaprichavej

Tantimethanon

et al. 2021

BMC Musculoskelet Disord

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Background Bilateral one-stage total knee arthroplasty (BTKA) have increased because it provides a number of advantages. Recently, Accelerometer-based navigation (ABN) system which guide the cutting plane without intramedullary disturbance might result in less endothelial and microvascular damage. Therefore, we hypothesized that the ABN may reduce blood loss, reduce postoperative pain, and better restore BTKA alignment compared to conventional instruments. Methods We retrospectively compared 44 consecutive patients receiving ABN assisted BTKA (iBTKA) to 57 patients with conventional instruments (cBTKA). Identical pre- and post-operative care was utilized to all patients. The outcome measures assessed were hemoglobin (Hb), calculated blood loss (CBL), blood transfusion, VAS score for pain, morphine consumption, knee flexion angle, and length of stay (LOS). Radiographic assessment included mechanical axis (MA) and component positioning at 3–6 months of follow up. Results Both iBTKA and cTKA groups had equivalent demographic data. Postoperative Hb of the cBTKA group was significantly lower than those in the iBTKA group at 24 h (p = 0.02), but there was no significant difference in drain volume, CBL, and blood transfusion rate. For radiographic measures, the iBTKA group had more accurate MA and component orientation, and had a lower number of outliers than those in the cBTKA group (p ≤ 0.01), except for the sagittal femoral component angle. Conclusion The ABN assisted BTKA could not reduce blood loss or postoperative pain more than cBTKA, nor improve functional recovery. However, the ABN significantly improved the accuracy of MA and prostheses positioning. Trial registration The protocol of this study was registered in the Thai Clinical Trials Registry database No. TCTR20180731001# on 25 July 2018.

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Section: Discussionmentioning

confidence: 60%

Usefulness of an accelerometer-based navigation system in bilateral one-stage total knee arthroplasty

Laoruengthana

Rattanaprichavej

Tantimethanon

et al. 2021

BMC Musculoskelet Disord

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“…Recently, some studies in literature reported a reduction of outliers in component position in coronal and sagittal plane using portable accelerometer-based surgical navigation system compared with standard technique for TKA [25e27,29]. In a recent study of 159 patients by Ueyama et al [28], they concluded that using an accelerometer-based portable navigation system (KneeAlign2, OrthAlign Inc, Aliso Viejo, CA) lead to a decrease in the number of outliers of prosthetic alignment in coronal and sagittal planes without any increased complications or operation time. Goh et al compared the alignment accuracy between accelerometerbased navigation and CAS, and they found no differences in lower limb alignment and in position of the femoral component in coronal and sagittal plane between the two groups [35].The purpose of the present study was to investigate whether this system based on accelerometer navigation can be a valuable option to restore neutral alignment with optimal implant position in post-traumatic knee osteoarthritis with femoral or tibial EAD.…”

Section: Discussionmentioning

confidence: 99%

Total Knee Arthroplasty in Patients With Extra-Articular Deformity: Restoration of Mechanical Alignment Using Accelerometer-Based Navigation System

Matassi

Lepri

Innocenti

et al. 2019

The Journal of Arthroplasty

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“…Of the six studies investigating whether portable navigation achieved neutral alignment more reliably than conventional methods, two provided Level 1 evidence, one provided Level II evidence and three provided Level III evidence [10,27,28,30,33,35]. Finally, of the six studies investigating whether portable navigation translates to improved clinical results, one provided Level 1 evidence, one provided Level II evidence and three provided Level III evidence [10,28,30,33,35]. Studies reviewed differed with respect to their level of evidence ranging from Level I studies to Level III.…”

Section: Search Strategy and Criteriamentioning

confidence: 99%

Systematic Review of Accelerometer Based Navigation in Total Knee Arthroplasty: Improved Alignment, Clinical Results, and Patient Reported Outcomes Compared to Conventional Guides?

Duncan¹,

Jacobs²,

Warth³

et al. 2020

JSR

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Background: There have been significant advancements to restore knee alignment postoperatively in the TKA population. This includes the use of accelerometer-based portable navigation (ABN). ABN can lead to a more precise restoration of the neutral mechanical axis, improve efficiency and potentially decrease early- and long-term complications. The degree with which ABN can achieve this remains unclear. We performed a systematic review to answer this question. Methods: We performed a systematic review in accordance with Cochrane guidelines of controlled studies (prospective and retrospective) in MEDLINE with an emphasis on studies comparing postoperative outcomes such as mechanical axis alignment, operative time, blood loss, complications and clinical outcome scores in total knee arthroplasty patients using ABN versus conventional intramedullary guides. Results: ABN was associated with significantly fewer outliers in hip-knee-ankle alignment (p = 0.0006), femoral component alignment (p < 0.0001). ABN was associated with significantly less estimated blood loss (p = 0.05) and no difference in operative times (p = 0.21). Finally, there was no difference regarding functional outcomes or DVT. Conclusion: ABN more accurately achieves neutral mechanical alignment with a smaller incidence of outliers. There was not an increase in operative time with using ABN and there were reductions in blood loss as well. We conclude that ABN offers the benefit of improved mechanical alignment.

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An accelerometer-based portable navigation system improved prosthetic alignment after total knee arthroplasty in 3D measurements

Abstract: III.

Cited by 27 publications

References 29 publications

Usefulness of an accelerometer-based navigation system in bilateral one-stage total knee arthroplasty

Usefulness of an accelerometer-based navigation system in bilateral one-stage total knee arthroplasty

Total Knee Arthroplasty in Patients With Extra-Articular Deformity: Restoration of Mechanical Alignment Using Accelerometer-Based Navigation System

Systematic Review of Accelerometer Based Navigation in Total Knee Arthroplasty: Improved Alignment, Clinical Results, and Patient Reported Outcomes Compared to Conventional Guides?

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