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Table 2 Summary of JLCA influence on osteotomy correction

From: Managing intra-articular deformity in high Tibial osteotomy: a narrative review

Author Year Soft tissue correction (Mean ± SD) What is error Correction? Identified risks factors for correction errors
Kubota et al. 2020 4.4 ± 2.9 Difference between the correction angle during surgery and the radiological correction angle - Pre MPTA,
- JLCA is not associated with ovecorrection
Kumagai et al. 2020 ΔJLCA > 2° - Post JLCA on the day of surgery
Goshima et al. 2019 Patients overcorrected group if MPTA > 95° - Larger pre JLCA
Tsuji et al. 2019 2.0 ± 1.5° Navigation correction loss > 1.5° - Higher standing JLCA
Lee et al. 2019 2.6 ± 2.2° ΔHKA angle in standing long-bone radiographs – ΔHKA angle in navigation - JLCA in varus stress
- Latent medial laxity
Takagawa et al. 2019 3.2° ΔHKA angle –
ΔMPTA defined as the soft tissue correction
- Pre JLCA
- JLCA in valgus stress
So et al. 2019 2.0 ± 2.4° the difference between the change in MA on standing whole-leg radiograph and the coronal correction by navigation > 3° - Larger ΔJLCA (supine – standing)
- Pre varus deformity
- Pre JLCA
- JLCA in varus stress
Park et al. 2019 5.8 ± 7.4% Overcorrection if
WBL ratio > 10% of the target WBL
- Pre JLCA
- Valgus stress angle
- ΔJLCA (pre – post)
Ogawa et al. 2016 3.4 ± 2.5° ΔHKA angle –
ΔMPTA defined as the soft tissue correction
- JLCA under varus stess
- ΔJLCA (pre – post)
Lee et al. 2015 WBL ratios < 57 and > 67% were classified as under- or over-corrections - Pre JLCA
- ΔJLCA (pre – post)
  1. Pre preoperative, Post postoperative, ΔJLCA JLCA changes between two conditions, ΔHKA angle Global correction or postoperative, HKA angle preoperative HKA angle, ΔMPTA Bony correction or preoperative, MPTA postoperative MPTA, WBL weight bearing lines