ArticleInternational orthopaedics2022
Can the need for soft tissue release in total knee replacement be predicted pre-operatively? A study based on surgical navigation.
Article in International orthopaedics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 6 citations in OpenAlex.
- Modified Macroscopic Soft Tissue Injury (Modified MASTI) Classification for Bone and Soft Tissue Integrity in Cruciate Retaining Total Knee Arthroplasty.Indian journal of orthopaedics · 2025Article
- Outcomes following functionally aligned total knee arthroplasty in severe varus deformity.Journal of clinical orthopaedics and trauma · 2025Article
- Predictive factors for deep medial collateral ligament release in adjusted mechanical alignment total knee arthroplasty.Journal of orthopaedic surgery and research · 2024Article
- Constitutional alignment predicts medial ligament balancing in mechanically aligned total knee arthroplasty for varus knees.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
introductionIn 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).
methodsProspective 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.
resultsEighty-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.
conclusionThis study shows that pre-operative factors favouring the need to perform STR in a TKR implant can be defined.
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