Publication

Rimplasty: An Arthroscopic Technique for Patients With Isolated Patellar Chondromalacia Based on Autologous Matrix‐induced Chondrogenesis+ and Limited Trochleoplasty

2026

Abstract

Anterior knee pain is a common problem that can be difficult to treat. One potential cause of these symptoms is supratrochlear rim, which has been linked to isolated patellar chondromalacia in patients with patella alta and without any history of patellar dislocation or subluxation. In cases where the rim does not exceed 3 mm, the rim resection technique was previously described. This technical note outlines rimplasty, an arthroscopic technique addressing the biomechanical etiology of patellar chondromalacia by modifying patellofemoral joint kinematics and reconstructing patellar cartilage. The described technique specifically targets cases in which the supratrochlear rim exceeds 3 mm in height on imaging.

Official source

https://infoscience.epfl.ch/entities/publication/5966e111-7c7b-48f3-8b15-2c91ca175e6b

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2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5966e111-7c7b-48f3-8b15-2c91ca175e6b

About this result

Related concepts (15)

Knee

In humans and other primates, the knee joins the thigh with the leg and consists of two joints: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint). It is the largest joint in the human body. The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee is vulnerable to injury and to the development of osteoarthritis. It is often termed a compound joint having tibiofemoral and patellofemoral components.

Chondromalacia patellae

Chondromalacia patellae (also known as CMP) is an inflammation of the underside of the patella and softening of the cartilage. The cartilage under the kneecap is a natural shock absorber, and overuse, injury, and many other factors can cause increased deterioration and breakdown of the cartilage. The cartilage is no longer smooth and therefore movement and use is very painful. While it often affects young individuals engaged in active sports, it also afflicts older adults who overwork their knees.

Knee pain

Knee pain is pain in or around the knee. The knee joint consists of an articulation between four bones: the femur, tibia, fibula and patella. There are four compartments to the knee. These are the medial and lateral tibiofemoral compartments, the patellofemoral compartment and the superior tibiofibular joint. The components of each of these compartments can experience repetitive strain, injury or disease. Running long distance can cause pain to the knee joint, as it is a high-impact exercise.

Related publications (1)

Rimplasty: An Arthroscopic Technique for Patients With Isolated Patellar Chondromalacia Based on Autologous Matrix‐induced Chondrogenesis+ and Limited Trochleoplasty

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Development of a musculoskeletal model of the knee joint to predict articular contact patterns during a loaded squat movement