The distal femur morphometry during the fetal period

Abstract

Purpose: It was aimed to investigate the development and morphometric changes of the distal femur during the fetal period. Materials and method: 105 human fetuses (55 males and 50 females) aged between 9-40 weeks were used in this study. Fetuses were divided into four groups between gestational weeks; 1st trimester (9-12 weeks), 2nd trimester (13-25 weeks), 3rd trimester (26-37 weeks) and full term (38-40 weeks). Patella and patellar tendon were dissected in all fetal materials and the knee of each fetus was shown. The dimensions; length and width of intercondylar notch, length and width of medial and lateral condyles, total width of the distal femur and the angle of trochlear groove were measured by Verniers caliper and square. Finding: The length and width of intercondylar notch were found significantly different between trimesters and were rising with gestational age (p<0.05). The length and width of medial and lateral condyles were increased with gestational age. The length and width of lateral condyles were higher than the medial one. The angle of trochlear groove was not changing with gestational age and was found 129.90 . It was also found in our study that notch shape index (NSI) was 0,91 and notch width index (NWI) was 0.26 during the fetal period. Result: We consider that the data acquired in our study may contribute to the evaluation the development of distal femur in intrauterine cases. 

Keywords

• distal femur
• intecondylar notch
• human fetus
• morphometry

FETAL DÖNEMDE FEMUR DİSTALİNİN MORFOMETRİK GELİŞİMİ

Abstract

Amaç. Çalýþmamýzda fetal dönem boyunca femurun distalinde yer alan oluþumlarýn morfometrik deðiþimi ve geliþiminin araþtýrýlmasý amaçlandý. Gereç ve Yöntem: Yaþlarý 9-40 hafta arasýnda deðiþen eksternal anomalisi ve patolojisi olmayan 105 (55erkek, 50 kýz) adet insan fetusunda çalýþýldý. Fetuslar I.grup; 9-12 hafta, II. grup; 13-25 hafta, III. grup; 26-37 hafta ve IV. grup; miadýnda, 38-40 hafta olmak üzere 4 gruba ayrýldý. Bütün fetal materyallerde diz eklemi diseke edilerek patella ve patellar ligament yerinden kaldýrýldý ve femur distaline ait fossa intercondylaris yüksekliði, geniþliði, condylus medialis yüksekliði ve geniþliði, condylus lateralis yüksekliði ve geniþliði, femur distalinin geniþliði, trochlear oluk açýsý ölçümleri dijital kumpas ve gönye yardýmý ile alýndý. Bulgular: Fossa intercondylaris yüksekliði ve geniþliði gestasyonel yaþ boyunca artýyordu ve trimesterlar arasýnda anlamlý fark vardý (p<0.05). Femur distalindeki condylus medialis ve condylus lateralis yükseklik ve geniþliklerinin gestasyonel yaþ boyunca arttýðý görüldü (p<0.05). Condylus lateralis yüksekliðinin ve geniþliðinin, condylus medialis yükseklik ve geniþliðinden daha büyük olduðu tespit edildi (p<0.05). Trochlear oluk açýsý ise gestasyonel yaþ boyunca deðiþmiyordu ve ortalama 129. 9° idi. Ayrýca çalýþmamýzda fetal dönemde fossa intercondylaris þekil indeksi (notch shape index) (NSI) 0,91, fossa intecondylaris geniþlik indeksi (notch width index) (NWI) 0.26 olarak tespit edildi. Sonuç: Çalýþmamýzda elde edilen verilerin intrauterin olgularda femur geliþiminin deðerlendirilmesine katkýda bulunacaðýný düþünmekteyiz.

Keywords

• femur distali
• fossa intercondylaris
• fetus
• morfometri

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