Population Based: Evaluation of Femoroacetabular Impingement

Öz

Objective: Femoroacetabular impingement is a dysfunction of the hip joint with the potential to cause early hip osteoarthritis. The aim of this study was to examine the Alpha Angle and Femoral Neck-Head Offset measurements of patients who underwent pelvic Computed Tomography examination for any indication with radiologists. Material and Method: The results of 1,782 right and left hip joints of 891 individuals aged 18-45 years who underwent pelvic computed tomography examination (with or without contrast) for various reasons were evaluated retrospectively. Alpha Angle and Femoral Neck-Head Offset measurements were performed on computed tomography sections. In this study, an Alpha Angle of 55° or more and a Femoral Neck-Head Offset distance of less than 8 mm were considered abnormal. Results: A total of 891 individuals, 758 (85.1%) males and 133 (14.9%) females, were included in this study. The mean age of the individuals was 24.65 ± 6.01 years. The mean right Alpha Angle was 45.42 ± 4.4 (min 38.00, max 62.00), the mean left Alpha Angle was 46.65 ± 5.1 (min 38.00, max 72.10), the mean right Femoral Neck-Head Offset was 10.21 ± 0.02 (min 6.2, max 11.4), and the mean left Femoral Neck-Head Offset was 10.57 ± 0.01 (min 5.6, max 12.0). The total number of individuals with Alpha Angle ≥ 55° in both hip joints was 37, 33 of whom were male and 4 were female. There were no individuals with Femoral Neck-Head Offset < 8 mm in both hip joints. Conclusion: Imaging features known to be associated with femoroacetabular impingement are seen in asymptomatic adult hip joints, particularly in males. If anthropometric measurements are outside normal limits in asymptomatic young male and female individuals, clinical correlation of the findings of these individuals should be recommended.

Anahtar Kelimeler

• Alpha angle
• femoroacetabular ımpingiment
• femoral neck-head offset
• hip joint
• population
• radiologic ımaging
• young adult

Proje Numarası

Yok

Popülasyon Temelli: Femoroasetabular Impingement Değerlendirilmesi

Öz

Amaç: Femoroasetabular sıkışma, erken kalça osteoartriti oluşturma potansiyeli bulunan kalça ekleminin disfonksiyonudur. Bu çalışma ile herhangi bir endikasyonla pelvik Bilgisayarlı Tomografi incelemesi yapılmış olan hastaların Alfa Açısı ve Femur Boyun-Baş Offset ölçümlerinin radyoloji uzmanları ile birlikte incelenmesi amaçlandı. Gereç ve Yöntem: 18-45 yaş arası çeşitli nedenlerle pelvik Bilgisayarlı Tomografi incelemesi (kontrastlı veya kontrastsız) yapılmış olan 891 bireyin sağ ve sol 1.782 kalça eklemine ait sonuçları retrospektif olarak değerlendirildi. Bilgisayarlı tomografi kesitlerinde Alfa Açısı ve Femur Boyun-Baş Offset ölçümleri yapıldı. Bu çalışmada, Alfa Açısının 55° ve üzerinde olması, Femur Boyun-Baş Offset mesafesinin 8 mm’den küçük olan ölçüm değerleri anormal olarak değerlendirildi. Bulgular: Bu çalışmada 758’i (%85,1) erkek ve 133’ü (%14,9) kadın olmak üzere toplam 891 birey dahil edildi. Bireylerin ortalama yaşı 24,65 ± 6,01 idi. Çalışmaya dahil edilen tüm bireylerin sağ Alfa Açısı ortalaması 45,42 ± 4,4 (min 38,00, maks 62,00), sol Alfa Açısı ortalaması 46,65 ± 5,1 (min 38,00, maks 72,10), sağ Femur Boyun-Baş Offset ortalaması 10,21±0,02 (min 6,2, maks 11,4), sol Femur Boyun-Baş Offset ortalaması 10,57 ± 0,01 (min 5,6, maks 12,0) idi. Her iki kalça ekleminde Alfa Açısı ≥ 55°bulunan birey sayısı toplam 37 olup bu bireylerin 33’ü erkek, 4’ü kadın idi. Her iki kalça ekleminde Femur Boyun-Baş Offset < 8 mm bulunan birey saptanmadı. Sonuç: Femoroasetabular sıkışma ile ilişkili olduğu bilinen görüntüleme özellikleri özellikle erkek bireyler olmak üzere asemptomatik yetişkin kalça eklemlerinde görülmektedir. Asemptomatik genç erkek ve kadın bireylerde antropometrik ölçümlerin normal sınırlar dışında olması halinde bu bireylerin bulgularına yönelik klinik korelasyonu önerilmelidir.

Anahtar Kelimeler

• Alfa açısı
• femoroasetabular sıkışma
• femur boyun-baş offset
• genç erişkin birey
• kalça eklemi
• popülasyon
• radyolojik görüntüleme

Destekleyen Kurum

Yok

Proje Numarası

Yok

Teşekkür

Yok

Kaynakça

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