What is the cause of genu recurvatum?
Causes of genu recurvatum included physeal arrest; soft tissue laxity; and complications related to fractures, such as prolonged immobilization and malalignment.
Which joint is involved in genu recurvatum?
Genu recurvatum is a deformity in the knee joint, so that the knee bends backwards. In this deformity, excessive extension occurs in the tibiofemoral joint. Genu recurvatum is also called knee hyperextension and back knee….
| Genu recurvatum | |
|---|---|
| Specialty | Medical genetics, rheumatology |
What muscles are affected by knee hyperextension?
Causes of Knee Hyperextension Most of the damage happens in the ACL and the PCL, which are the two ligaments in the middle of the knee. These ligaments connect the shinbone to the thighbone and help control the movement of your shinbone.
What is the genu recurvatum?
Genu recurvatum is operationally defined as knee extension greater than 5′. Individuals who exhibit genu recurvatum may experience knee pain, display an extension gait pattern, and have poor proprioceptive control of terminal knee extension.
What muscles are tight in genu recurvatum?
Genu recurvatum is a term that is used when one hyperextends their knee. Knee hyperextension can be caused by several causes. These include muscle weakness, especially of the muscles in the top of the thigh (quadriceps), it can be due to injury, or it can occur due to the shape of one’s bones at their knee.
What causes genu valgum?
Mistreated (or untreated) traumatic injuries cause physeal damage or overgrowth (for example), resulting in progressive and disabling clinical deformity. Likewise, untreated congenital anomalies, skeletal dysplasias, genetic disorders, metabolic conditions, and rheumatologic diseases may cause genu valgum.
What muscles keep knee from hyperextending?
Prevention of knee hyperextension involves maintaining adequate strength in the muscles surrounding the knee, particularly the quadriceps as well as including a proper warm up and cool down before and after every workout or athletic event.
Which ligament prevents hyperextension of the knee?
It is the posterior cruciate ligament (PCL) that prevents the femur from sliding forward along the tibia. The ACL is the most important ligament to prevent hyperextension of the knee. So if the ACL is lax, hyperextension is more likely.
What causes a hyperextended knee?
A hyperextended knee often occurs after high-impact events, such as landing hard after a jump or stopping short when running. Due to the nature of this injury, athletes are most at risk, particularly those involved in contact or extreme sports.
What muscles are weak in genu varum?
More specifically, the genu varum group had a weak vastus lateralis, whereas the genu valgum group had a weak vastus medialis. Also, the vastus medialis in the genu valgum group showed higher activity at 60° of knee flexion.
How does genu varum affect the Q angle?
Genu valgum also increases the Q angle in this group. The Q angle is the angle between the quadriceps muscle line and the patellar tendon line, i.e. reported to be 10-14 degrees in men and 14-18 in women. This difference is due to the shape of the females’ pelvic [4].
What ligament prevents hyperextension of the knee?
Conclusion: The oblique popliteal ligament was found to be the primary ligamentous restraint to knee hyperextension.
What is genu recurvatum and how to treat it?
Genu recurvatum is also referred to as back knee or knee hyperextension. It is a type of distortion that affects the knee joint causing the knee to bend backward when the person is on a standing position.
What are the complications of genu recurvatum?
In genu recurvatum, normal extension is increased. The development of genu recurvatum may lead to knee pain and knee osteoarthritis . The following factors may be involved in causing this deformity: Connective tissue disorders.
What is the difference between genu recurvatum and quadriceps contracture?
But in genu recurvatum, the tibia travels too far forward on your femur, the knee goes in a hyperextended position, so there is an increased risk of getting an ACL tear. Quadriceps contracture is of two types congenital and post-injection contracture in infants.
What causes genu recurvatum in the knee?
The injuries that resulted in genu recurvatum are usually caused by an unexpected impact to the extended knee following an injury to some structures of the knee or just the posterior aspect of the knee structures. Other causes involve: Genu recurvatum can vary from mild, moderate, to severe and is divided into three types. These are: