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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Application of the Chinese Aircraft-shaped Sleeve system in the treatment of tibial shaft fractures using a suprapatellar approach for tibial intramedullary nailing: a randomised controlled trial

Fig. 2

The following anatomical parameters of the patellofemoral joint (PFJ) anatomy were measured on magnetic resonance images: a Patella angle (PA): for the angle where the medial and lateral cartilage surfaces of the patella meet. b Sulcus angle (SA): the angle between the medial and lateral cartilage surfaces of the sulcus. c Sulcus width (SW): the length of the line connecting the most prominent points of the medial and lateral cartilages inside the trochlear groove. d Sulcus depth (SD): the length of the perpendicular line from the deepest point between the cartilage of the trochlear groove cartilage and the SW

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X