Scholarlink

Background <p>Kaplan fibers (KFs) are critical stabilizers of the knee, yet their role in anterior tibial subluxation of the lateral compartment (ATSLC) in anterior cruciate ligament (ACL) injury remains unclear. This study is to determine whether KF injury is independently associated with increased ATSLC on magnetic resonance imaging (MRI) in patients with an injured ACL, and to identify risk factors for high-grade ATSLC (≥ 4.5&#xa0;mm).</p> Patients and methods <p>This retrospective study enrolled 132 patients with ACL injury who underwent MRI within 12&#xa0;weeks of trauma. MRI was used to evaluate the integrity of the ACL, KFs, anterolateral ligament (ALL), bony morphology, and ATSLC. Two trained observers independently assessed all images using standardized criteria. Agreement between observers was calculated using standard reliability metrics. Multivariable linear regression was performed to evaluate the independent association between KF injury and ATSLC. Logistic regression and receiver operating characteristic analysis were used to identify predictors of high-grade anterior tibial subluxation (≥ 4.5&#xa0;mm) in patients with combined ACL and anterolateral complex injuries.</p> Results <p>Of the 132 patients, 35.6% had KF injuries. These patients exhibited higher rates of ALL injury and distinct bony morphologic features. KF injury independently explained 15.1% of anterior tibial subluxation variability (<i>P</i> &lt; 0.001). In patients with combined anterolateral complex injuries, increased lateral femoral condyle width ratio was identified as an independent predictor of high-grade subluxation.</p> Data conclusion <p>KF injury is independently associated with greater anterior tibial subluxation, suggesting a key role in post-traumatic knee instability. Specific femoral anatomical feature may further predict high-risk cases.</p> Level of evidence <p>Level IV.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Association between Kaplan fiber injury and anterolateral tibial subluxation in patients with anterior cruciate ligament injury

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月7日

查看全文
  • Bailin Pan,
  • Shangmin Chen,
  • Yuanying Lin,
  • Du Lin,
  • Zhaohan Zhou,
  • Bendan Lin,
  • Laixi Zhou,
  • Jinjin Ma,
  • Xiaozhuan Wang,
  • Chuangxin Lin

摘要

Background

Kaplan fibers (KFs) are critical stabilizers of the knee, yet their role in anterior tibial subluxation of the lateral compartment (ATSLC) in anterior cruciate ligament (ACL) injury remains unclear. This study is to determine whether KF injury is independently associated with increased ATSLC on magnetic resonance imaging (MRI) in patients with an injured ACL, and to identify risk factors for high-grade ATSLC (≥ 4.5 mm).

Patients and methods

This retrospective study enrolled 132 patients with ACL injury who underwent MRI within 12 weeks of trauma. MRI was used to evaluate the integrity of the ACL, KFs, anterolateral ligament (ALL), bony morphology, and ATSLC. Two trained observers independently assessed all images using standardized criteria. Agreement between observers was calculated using standard reliability metrics. Multivariable linear regression was performed to evaluate the independent association between KF injury and ATSLC. Logistic regression and receiver operating characteristic analysis were used to identify predictors of high-grade anterior tibial subluxation (≥ 4.5 mm) in patients with combined ACL and anterolateral complex injuries.

Results

Of the 132 patients, 35.6% had KF injuries. These patients exhibited higher rates of ALL injury and distinct bony morphologic features. KF injury independently explained 15.1% of anterior tibial subluxation variability (P < 0.001). In patients with combined anterolateral complex injuries, increased lateral femoral condyle width ratio was identified as an independent predictor of high-grade subluxation.

Data conclusion

KF injury is independently associated with greater anterior tibial subluxation, suggesting a key role in post-traumatic knee instability. Specific femoral anatomical feature may further predict high-risk cases.

Level of evidence

Level IV.