Mixed-type femoroacetabular impingement associated with subspine impingement: recognizing the trifocal femoropelvic impingement

Souza, Bruno Gonçalves Schröder e; Cardoso, Ranieri Monteiro; Loque, Rodrigo Silva; Monte, Luiz Fernando Ribeiro; Sabino, José Paulo; Oliveira, Valdeci Manoel de

doi:10.1016/j.rboe.2018.03.007

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…This study shows that arthroscopic surgery is a safe technique for the simultaneous treatment of FAI and SSI with good functional results and a low complication rate. These findings are similar to those of Souza et al, 17 who described 2 cases of young male patients with a diagnosis of SSI and mixed-type FAI, with good results and full relief of symptoms. Arthroscopic treatment of SSI with optimal functional results has been described by other authors.…”

Section: Discussionsupporting

confidence: 91%

Functional Results of Arthroscopic Treatment in Patients With Femoroacetabular and Subspine Impingement Diagnosed With a 3-Dimensional Dynamic Study

Aguilera-Bohórquez¹,

Ramirez

Cantor

2020

Arthroscopy, Sports Medicine, and Rehabilitation

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To describe the functional results of arthroscopic treatment in patients with femoroacetabular impingement (FAI) and subspine impingement (SSI) evaluated with a 3-dimensional (3D) dynamic study. Methods: This was a retrospective observational study of patients with a diagnosis of FAI and SSI, evaluated with a 3D dynamic computed tomography scan with Move Forward software, who underwent hip arthroscopy between February 2015 and December 2017. Measurements of the alpha angle, femoral anteversion, acetabular anteversion, lateral center-edge angle, and Tönnis angle were extracted from the 3D dynamic study. Functionality was evaluated using the Western Ontario McMaster Universities Osteoarthritis Index before and 12 months after surgery. Results: We analyzed 22 hips in 17 patients (9 female and 8 male patients) with an average age of 34.6 AE 14.3 years. Of the 22 hips, 15 had cam morphology, 6 had mixed morphology, and 1 had pincer morphology. Of the hips, 11 had a type I spine, 10 had type II, and 1 had type III. The average alpha angle, Tönnis angle, femoral anteversion, and acetabular anteversion were 61.9 AE 11.1 , 2.5 AE 6.4 , 8.8 AE 6.8 , and 15.1 AE 7.1 , respectively. The median lateral center-edge angle was 38.1 (interquartile range, 32.6-43.5). At 1-year follow-up, a decrease in the Western Ontario McMaster Universities Osteoarthritis Index score (P ¼ .001) and an increase in the flexion angle (P < .001) were observed. No cases needed posterior surgical revision because of persistent pain. Conclusions: Arthroscopic treatment provides symptom relief and good functional results in patients with FAI and SSI. Level of Evidence: Level IV, therapeutic case series.

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Section: Discussionsupporting

confidence: 91%

Functional Results of Arthroscopic Treatment in Patients With Femoroacetabular and Subspine Impingement Diagnosed With a 3-Dimensional Dynamic Study

Aguilera-Bohórquez¹,

Ramirez

Cantor

2020

Arthroscopy, Sports Medicine, and Rehabilitation

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“…Pincers occur more frequently in women who are in in their 30s and 40s and are athletically active [18,37]. Finally, Figure 1d shows the FAI mixed-type [38,39].…”

Section: Femoroacetabular Impingement In Human Hip Jointmentioning

confidence: 95%

Comparative Analysis of Healthy and Cam-Type Femoroacetabular Impingement (FAI) Human Hip Joints Using the Finite Element Method

et al. 2021

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In this study, a human hip joint with Cam-type Femoroacetabular Impingement (FAI) is studied by the Finite Element Method (FEM). This pathology consists of a malformation that causes a lack of sphericity of the head of the femur. In turn, this causes wear and tear of the cartilage, a cause of early osteoarthritis of the hip. The objective is to use the FEM to analyze and compare the increase in the von Mises stress and displacement of the cartilage in healthy and damaged (with Cam-type) human hip joints that this syndrome affects. The 3D models were reconstructed from two medical CT scans of a healthy and a damaged hip joint that were obtained, five years apart, for a male of 80 kg in weight. The 3D models were reconstructed using 3D Slicer software. The cortical and trabecular bone, as well as the cartilage, were segmented. The defects were corrected by MesMixer software that generated STL files. Both models were imported into the Marc Mentat® software for the Finite Element Analysis (FEA). It was noted that the thickness of the cartilage decreased enormously during the five years, which suggests imminent mechanical contact between the head of the femur and the acetabulum of the pelvis. The FEA results showed an excessive increase in the stress and displacement of the cartilage. This will certainly result in a condition of osteoarthritis for the patient in the future years.

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Mixed-type femoroacetabular impingement associated with subspine impingement: recognizing the trifocal femoropelvic impingement

Cited by 2 publications

References 9 publications

Functional Results of Arthroscopic Treatment in Patients With Femoroacetabular and Subspine Impingement Diagnosed With a 3-Dimensional Dynamic Study

Functional Results of Arthroscopic Treatment in Patients With Femoroacetabular and Subspine Impingement Diagnosed With a 3-Dimensional Dynamic Study

Comparative Analysis of Healthy and Cam-Type Femoroacetabular Impingement (FAI) Human Hip Joints Using the Finite Element Method

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