Soft Tissue Management in Computer-Assisted Cruciate-Retaining Total Knee Replacement

2012 ◽  
pp. 73-82
Author(s):  
Petra J. C. Heesterbeek ◽  
Ate B. Wymenga
Keyword(s):  
Soft Tissue ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Computer Assisted ◽  
Soft Tissue Management ◽  
Cruciate Retaining ◽  
Total Knee

scholarly journals Gap Deviation after Cementation in Computer Assisted Navigation TKA

10.29007/t7tz ◽  
2019 ◽  
Author(s):  
Chumroonkiet Leelasestaporn ◽  
Tomorn Tarnpichprasert
Keyword(s):  
Soft Tissue ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Mechanical Axis ◽  
Mobile Bearing ◽  
Flexion Contracture ◽  
Implant Design ◽  
Computer Assisted ◽  
Assisted Navigation ◽  
Total Knee

INTRODUCTIONThe outcome of knee replacement depended on alignment, balancing of soft tissue, symmetrical andrectangular gaps adjustment, and accurate implant placement. Many techniques have been used toimprove these factors including navigator assisted knee replacement, which has precise bone cutand accurate soft tissue balancing. However, cementation may change gaps and alignment that canaffect outcome of knee replacement.OBJECTIVETo compare gaps and alignment after cementation in computer assisted total knee replacementMATERIAL AND METHODSProspective collecting data all cases performed computer assisted total knee replacement withcruciate retaining - mobile bearing implant design. Gaps and mechanical axis was collected andcompered between complete trial prosthesis and final cementation.RESULTLateral extension gap and flexion contracture significantly increase after cementation whencompared with trial implantation [0.6 mm (P = 0.021), 2.7o (P = 0.00)]. The mechanical axis was notdeviated after cementation (P = 1.00).CONCLUSIONCementation is able to influence gap and alignment. It may be useful to control and recheck gap andalignment with navigation system during cementation. Clinical correlation needs furtherinvestigation.

scholarly journals Can the need for soft tissue release in total knee replacement be predicted pre-operatively? A study based on surgical navigation

2021 ◽  
Author(s):  
Daniel Hernandez-Vaquero ◽  
Alfonso Noriega-Fernandez ◽  
Sergio Roncero-Gonzalez ◽  
Gorka Luis Ruete-Gil ◽  
Jose Manuel Fernandez-Carreira
Keyword(s):  
Soft Tissue ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Surgical Navigation ◽  
Lateral Release ◽  
Soft Tissue Release ◽  
Computer Assisted ◽  
Lateral Side ◽  
Valgus Stress ◽  
Total Knee

Abstract Introduction In complex and deformed knees, soft tissue release (STR) is required to obtain symmetry in the femorotibial gap. The objective of this study was to attempt to predict the need for soft tissue release using surgical navigation in total knee replacement (TKR). Methods Prospective and non-randomized study. One hundred thirty knees. At the start of navigation, an attempt was made to correct the femorotibial mechanical axis by applying force to the medial or lateral side of the knee (varus-valgus stress angle test). A gap balanced technique with computer-assisted surgery (CAS) was performed in all cases. The ligaments were tensioned, and using CAS visualization and control, progressive STR was performed in the medial or lateral side until a symmetry of the femorotibial gap was achieved. Results Eighty-two patients had a varus axis ≥ 3° and 38 had a valgus axis (P < 0.001). STR was performed under navigation control in 38.5% of cases, lateral release (LR) in 12 cases, and medial release (MR) in 38 cases. After performing the varus-valgus stress angle test (VVSAT), the axis of 0° could be restored at some point during the manoeuvre in 28 cases. STR was required in 44.6% of varus cases and 27% of valgus cases (P = 0.05). A significant relationship was found between the previous deformity and the need for MR (P < 0.001) or LR (P = 0.001). STR was more common in male patients (P = 0.002) and as obesity increased. Conclusion This study shows that pre-operative factors favouring the need to perform STR in a TKR implant can be defined.

Kinematic behaviour and soft tissue management in guided motion total knee replacement

2014 ◽  
Vol 22 (12) ◽  
pp. 3074-3082 ◽  
Author(s):  
Camilla Halewood ◽  
Michael Risebury ◽  
Neil P. Thomas ◽  
Andrew A. Amis
Keyword(s):  
Soft Tissue ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Soft Tissue Management ◽  
Kinematic Behaviour ◽  
Total Knee

scholarly journals Evaluation of Optimal Soft Tissue Tension in Total Knee Replacement.

1994 ◽  
Vol 43 (4) ◽  
pp. 1399-1402
Author(s):  
Takashi Furugen ◽  
Nozomi Hatano ◽  
Masaaki Nohara ◽  
Tugukazu Touma ◽  
Hidemaro Higa
Keyword(s):  
Soft Tissue ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Soft Tissue Tension ◽  
Total Knee ◽  
Tissue Tension

Mobility and Stability of the Intact and Replaced Knee

2015 ◽  
Author(s):  
John Goodfellow ◽  
John O'Connor ◽  
Hemant Pandit ◽  
Christopher Dodd ◽  
David Murray
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Final Section ◽  
Sagittal Plane ◽  
Polyethylene Wear ◽  
Mobile Bearing ◽  
Theoretical Background ◽  
Cruciate Retaining ◽  
Prosthetic Knee ◽  
Total Knee

Having demonstrated in Chapter 2 that a fully conforming mobile bearing can minimise polyethylene wear, in this chapter we show that a mobile bearing prosthesis, unconstrained in the sagittal plane, can restore natural mobility and stability. For surgeon readers who are less interested in the theoretical background, it might be advisable to go straight to Chapter 4, Indications, or to start by reading the final section of this chapter, The Loaded Prosthetic Knee. If that proves interesting, the surgeon might attempt The Unloaded Prosthetic Knee. For the more research minded surgeon or engineer, it seems more logical to start with the Unloaded Natural Knee (the longest section of the chapter) and to read from there. The chapter may also be of interest to those surgeons embarking on the use of a bi-cruciate retaining total knee replacement.

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