Di Maria Fabrizio, D'Ambrosi Riccardo, Sconfienza Luca Maria, Fusco Stefano, Abermann Elisabeth, Fink Christian
Department of General Surgery and Medical Surgical Specialties, Section of Orthopaedics and Traumatology, University Hospital Policlinico "Rodolico-San Marco" University of Catania, Catania, Italy.
IRCCS Istituto Ortopedico Galeazzi - Sant'Ambrogio, Milan, Italy.
Radiol Med. 2025 Apr;130(4):534-542. doi: 10.1007/s11547-025-01951-x. Epub 2025 Jan 25.
This study aimed to assess the posterior cruciate ligament (PCL) angle in anterior cruciate ligament (ACL) deficient knees and correlate it with anatomical and demographic factors such as tibial slope, anterior tibial translation, age, gender, and time of injury.
Patients were eligible for inclusion if they were clinically diagnosed with an ACL tear confirmed by MRI. For each patient, the following parameters were evaluated: PCL angle (PCLA), medial tibial slope (MTS), lateral tibial slope (LTS), medial anterior tibial translation (MATT), and lateral anterior tibial translation (LATT).
A total of 193 patients were included in the study, comprising 91 (47.2%) females and 102 (52.8%) males, with a mean age of 30.27 ± 12.54 years. The mean time from injury to MRI was 14.18 ± 55.77 days. In the overall population, the mean PCL angle was 128.72 ± 10.33°, the mean medial tibial slope was 3.57 ± 2.33°, and the mean lateral tibial slope was 6.07 ± 3.52°. The mean medial and lateral anterior tibial translations were 4.76 ± 2.02 mm and 7.01 ± 2.48 mm, respectively. In 190 cases (98.4%), the PCL angle was ≥ 105°. The PCL angle negatively correlated with medial and lateral anterior tibial translation (p < 0.05). Females exhibited a higher PCL angle compared to males (p = 0.019).
In the context of ACL lesions, the PCL angle has a normal value in acute injuries (> 105°) and decreases over time. The PCL angle is negatively correlated with anterior tibial translation, and females have a higher PCL angle compared to males.
Retrospective Cohort.
本研究旨在评估前交叉韧带（ACL）损伤膝关节的后交叉韧带（PCL）角度，并将其与胫骨坡度、胫骨前移、年龄、性别和受伤时间等解剖学和人口统计学因素相关联。
临床诊断为ACL撕裂且经MRI证实的患者符合纳入标准。对每位患者评估以下参数：PCL角度（PCLA）、胫骨内侧坡度（MTS）、胫骨外侧坡度（LTS）、胫骨内侧前移（MATT）和胫骨外侧前移（LATT）。
本研究共纳入193例患者，其中女性91例（47.2%），男性102例（52.8%），平均年龄30.27±12.54岁。从受伤到进行MRI检查的平均时间为14.18±55.77天。在总体人群中，平均PCL角度为128.72±10.33°，平均胫骨内侧坡度为3.57±2.33°，平均胫骨外侧坡度为6.07±3.52°。胫骨内侧和外侧前移的平均值分别为4.76±2.02mm和7.01±2.48mm。在190例（98.4%）病例中，PCL角度≥105°。PCL角度与胫骨内侧和外侧前移呈负相关（p<0.05）。女性的PCL角度高于男性（p=0.019）。
在ACL损伤的情况下，PCL角度在急性损伤时具有正常值（>105°），并随时间降低。PCL角度与胫骨前移呈负相关，女性的PCL角度高于男性。
证据等级IV：回顾性队列研究。
