Adam Guilherme Pradi, Meyer Igor Varela, Silva Tainá de Arruda E, Wanderley Mark, de Mello Eduardo Bristot, Valentim Leonardo, Maia Israel Silva, Adames Mariela Goulart
Clínica Imagem, Florianópolis, SC, Brazil.
Instituto de Ensino e Pesquisa Hospital Baia Sul, Florianópolis, SC, Brazil.
Radiol Bras. 2023 Jul-Aug;56(4):202-206. doi: 10.1590/0100-3984.2023.0019.
To describe cases of parafoveal chondral lesion of the femoral head in patients with femoroacetabular impingement, correlating the clinical and imaging data.
This was a retrospective descriptive case series of parafoveal chondral lesion of the femoral head in 21 patients who underwent computed tomography and magnetic resonance arthrography scans of the hip, having then received an imaging-based diagnosis of femoroacetabular impingement.
Of the 21 patients evaluated, 15 (71%) had cam-type femoroacetabular impingement, whereas five (24%) had mixed-type impingement, and one (5%) had pincer-type impingement. Twelve patients (57%) had a low frequency of physical activity, which was significantly associated with the presence of cam-type impingement ( = 0.015). Although the extent of the lesion correlated significantly with the acetabular coverage angle ( = 0.04), it did not correlate significantly with the alpha angle or femoral head-neck offset value ( = 0.08 and = 0.06, respectively). We also found no correlation between the extent of the lesion and the other main parameters that define the femoroacetabular impingement types.
This was one of the largest case series of parafoveal chondral lesion of the femoral head in patients with imaging findings of femoroacetabular impingement. The extent of such lesions does not appear to correlate with the parameters of femoroacetabular impingement, with the exception of the acetabular coverage angle.
描述股骨髋臼撞击症患者股骨头小凹旁软骨损伤的病例，将临床和影像学数据相关联。
这是一项回顾性描述性病例系列研究，纳入了21例股骨头小凹旁软骨损伤患者，这些患者均接受了髋关节计算机断层扫描和磁共振关节造影扫描，随后基于影像学诊断为股骨髋臼撞击症。
在评估的21例患者中，15例（71%）为凸轮型股骨髋臼撞击症，5例（24%）为混合型撞击症，1例（5%）为钳夹型撞击症。12例患者（57%）体力活动频率较低，这与凸轮型撞击症的存在显著相关（P = 0.015）。尽管损伤范围与髋臼覆盖角显著相关（P = 0.04），但与α角或股骨头颈偏移值无显著相关性（分别为P = 0.08和P = 0.06）。我们还发现损伤范围与定义股骨髋臼撞击症类型的其他主要参数之间无相关性。
这是影像学表现为股骨髋臼撞击症的患者中最大的股骨头小凹旁软骨损伤病例系列之一。除髋臼覆盖角外，此类损伤的范围似乎与股骨髋臼撞击症的参数无关。
