Meniscus is a crescent-shaped piece of fibrocartilage inside the knee joint. It sits between the femur (thigh bone) and tibia (shin bone). It helps the knee bear load and move smoothly during walking, running, and squatting. The term is most commonly used in orthopedics, sports medicine, and knee imaging reports.

The Medial retinaculum is a band-like set of connective tissues on the inner (medial) side of the front of the knee. It helps support and guide the kneecap (patella) as the knee bends and straightens. Clinicians commonly discuss it when evaluating patellar pain, patellar instability, or kneecap dislocation. It is also relevant in sports medicine, physical therapy, and some knee surgeries.

The Lateral retinaculum is a band-like layer of connective tissue on the outer (lateral) side of the front of the knee. It helps connect the thigh muscles and fascia to the kneecap (patella) and surrounding structures. Clinicians most often discuss it when evaluating patellar tracking, patellofemoral pain, or kneecap instability. It can also be involved in certain knee procedures when it is too tight, scarred, or injured.

MPFL stands for the medial patellofemoral ligament. It is a soft-tissue structure on the inner (medial) side of the knee that helps guide the kneecap (patella). It is most often discussed in the context of kneecap instability and patellar dislocation. Clinicians also use the term when describing MPFL injury, assessment, or MPFL reconstruction surgery.

The Medial patellofemoral ligament is a band of connective tissue on the inner (medial) side of the knee. It helps keep the kneecap (patella) aligned as the knee bends and straightens. It is most discussed in the context of kneecap instability and dislocation. It is also a key structure in certain knee stabilization surgeries.

PLC most commonly refers to the **posterolateral corner** of the knee. It is a group of ligaments and tendons on the **back-outside** of the knee that helps keep the joint stable. Clinicians discuss the PLC when evaluating **knee instability**, especially after sports injuries or trauma. The term also appears in imaging reports and surgical planning for complex ligament injuries.

Posterolateral corner is a region on the back-outside (posterior-lateral) part of the knee. It includes several ligaments, tendons, and capsule tissues that help the knee stay stable. Clinicians most often discuss Posterolateral corner in the context of knee instability and ligament injuries. It is also a key concept in sports medicine exams, imaging interpretation, and surgical planning.

PCL stands for the posterior cruciate ligament. It is a strong ligament inside the knee that helps control how the tibia moves under the femur. It is commonly discussed in sports medicine, orthopedics, and physical therapy when evaluating knee instability or injury. It is also relevant in arthritis care and knee surgery planning because it affects knee mechanics.

The Posterior cruciate ligament is a strong band of connective tissue inside the knee joint. It helps keep the shinbone (tibia) from sliding too far backward under the thighbone (femur). Clinicians commonly discuss it when evaluating knee instability, trauma, and sports injuries. It is also a key structure considered in imaging reports, rehabilitation plans, and surgical planning.

ACL stands for the anterior cruciate ligament. It is a strong band of connective tissue inside the knee joint. It helps control forward motion and rotation of the tibia (shinbone) under the femur (thighbone). The term ACL is commonly used in sports medicine, orthopedics, and physical therapy when discussing knee stability and knee injuries.