Biomaterial Database

Functional Regions of the Medial Patellofemoral Ligament. 2019

Gang Ji, and Yifei Sun, and Jiangfeng Lu, and Yingzhen Niu, and Fei Wang

Department of Orthopedics, Third Hospital of Hebei Medical University, Shijiazhuang, China.

The purpose of this study was to explore the anatomy and discuss functional regions of the medial patellofemoral ligament (MPFL). Twelve fresh-frozen knees specimens were dissected. All medial surfaces of knees were intact and did not have indication of injury. General feature of the MPFL were observed. All anatomical landmarks were carefully identified and marked. The length of the two functional regions were conducted and recorded. All data were obtained, described, and analyzed in the form of mean ± standard deviation. The MPFL was found in all specimens we dissected. Closed to the patellar insertion, it adheres to the deep surface of the vastus medialis obliquus (VMO). Due to the VMO, the MPFL is divided into two functional regions: overlap region and nonoverlap region. Anatomically, the overlap region and nonoverlap region of 25.43 ± 2.0 and 44.85 ± 3.04 mm, the width of VMO insertion is 13.94 ± 2.03 mm, and the width of patellar insertion is 22.91 ± 3.46 mm. We divide the MPFL into two anatomical functional regions, demarcated by the meshing points of fibers between the MPFL and VMO: overlap region and nonoverlap region. This finding provides the theoretical foundation for the treatment of the MPFL injury and shed lights on the future researches.

UI	MeSH Term	Description	Entries
D007719	Knee Joint	A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.	Superior Tibiofibular Joint,Joint, Knee,Joint, Superior Tibiofibular,Knee Joints,Superior Tibiofibular Joints,Tibiofibular Joint, Superior
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D002102	Cadaver	A dead body, usually a human body.	Corpse,Cadavers,Corpses
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D059925	Anatomic Landmarks	Reference points located by visual inspection, palpation, or computer assistance, that are useful in localizing structures on or within the human body.	Anatomic Landmark,Landmark, Anatomic,Landmarks, Anatomic
D017847	Patellar Ligament	A band of fibrous tissue that attaches the apex of the PATELLA to the lower part of the tubercle of the TIBIA. The ligament is actually the caudal continuation of the common tendon of the QUADRICEPS FEMORIS. The patella is embedded in that tendon. As such, the patellar ligament can be thought of as connecting the quadriceps femoris tendon to the tibia, and therefore it is sometimes called the patellar tendon.	Ligamentum Patellae,Patellar Tendon,Patella Tendon,Ligament, Patellar,Ligaments, Patellar,Patella Tendons,Patellar Ligaments,Patellar Tendons,Tendon, Patella,Tendon, Patellar,Tendons, Patella,Tendons, Patellar
D018482	Muscle, Skeletal	A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.	Anterior Tibial Muscle,Gastrocnemius Muscle,Muscle, Voluntary,Plantaris Muscle,Skeletal Muscle,Soleus Muscle,Muscle, Anterior Tibial,Muscle, Gastrocnemius,Muscle, Plantaris,Muscle, Soleus,Muscles, Skeletal,Muscles, Voluntary,Skeletal Muscles,Tibial Muscle, Anterior,Voluntary Muscle,Voluntary Muscles