Purpose

The aim of the present study was to evaluate the effect of patellofemoral joint morphology and patellar alignment (lateral patellar tilt and sagittal patellar tilt) on the presence and stage of CP, and identify the differences between sexes.

Methods

MRI of 243 patients [146 men (60.1%)] were evaluated retrospectively. Patients were grouped as normal group without chondromalacia, group with mild chondromalacia (grades 1–2) and group with severe chondromalacia (grades 3–4). Sagittal patellofemoral alignment was assessed by the angle between the patella and patellar tendon (P-PTA), and the angle between the quadriceps tendon and patella (Q-PA). Patellar tilt was assessed by lateral patellar tilt angle (LPTA). In addition, patellofemoral joint morphology was evaluated by measuring trochlear depth (TD), trochlear sulcus angle (TSA) and patella angle (PA).

Results

P-PTA, Q-PA, LPTA and TD values were significantly lower in patients with severe chondromalacia than in patients with both normal and mild chondromalacia (P < 0.001). TSA values were significantly higher in patients with severe chondromalacia than those with both normal and mild chondromalacia (P < 0.001). TSA was higher and TD was lower in women compared to men (P < 0.001). LPTA and P-PTA were lower in women compared to men, and the difference was significant. There was no difference in PA between the two sexes.

Conclusions

Patellar cartilage degeneration increases with trochlear dysplasia. There is a strong correlation between patellar malalignment (lateral patellar tilt and sagittal patellar tilt) and chondromalacia patella. Women are more prone to developing CP than men.

中文翻译：

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ella骨-pat腱角度和lateral骨外侧倾斜角度可减少软骨软化骨的患者。

目的

本研究的目的是评估CP股关节形态和pa骨排列（外侧tilt骨倾斜和矢状pa骨倾斜）对CP的存在和阶段的影响，并确定性别之间的差异。

方法

回顾性分析了243例患者的MRI（146例男性（60.1％））。将患者分为无软骨软化症的正常组，轻度软骨软化症的组（1-2级）和重度软骨软化症的组（3-4级）。通过by骨与pa腱之间的角度（P-PTA）和股四头肌与and骨之间的角度（Q-PA）评估矢状pa股对齐。lateral骨倾斜度通过lateral骨外侧倾斜角（LPTA）进行评估。此外，通过测量滑车深度（TD），滑车槽角（TSA）和骨角（PA）来评估of股关节的形态。

结果

重度软骨软化症患者的P-PTA，Q-PA，LPTA和TD值均显着低于正常和轻度软骨软化症患者（P  <0.001）。重度软骨软化症患者的TSA值显着高于正常和轻度软骨软化症患者（P  <0.001）。与男性相比，女性的TSA更高而TD更低（P  <0.001）。女性的LPTA和P-PTA低于男性，差异显着。男女之间的PA没有差异。

结论

骨软骨发育不良会增加increases骨软骨变性。pa骨畸形（外侧pa骨倾斜和矢状pa骨倾斜）与软骨软化cia骨之间存在很强的相关性。女人比男人更容易患CP。