Of a joint, the position where maximum joint play occurs, where ligaments and capsule have the least amount of tension. Synonym: resting position.

What is the closed packed position of the wrist?

The close-packed position for the knee, wrist, and interphalangeal joints is at full extension, and for the ankle joint at full dorsiflexion. Any movement away from the close-packed position takes a joint into the loose-packed position in which the area of contact and joint stability is reduced.

What is open and closed pack position of joints?

For example, the open-packed position of the knee is 25 degrees of flexion. The close-packed position is full extension. Biomechanically, the knee is ‘unlocked. ‘ Following an injury, the body favors this position because there is space for swelling and other fluid to accumulate within the joint.

What is the open packed position of the elbow?

The resting or open-packed position for the humeroulnar joint is 70 degrees of flexion with 10 degrees of forearm supination. The close-packed position is full extension and maximum forearm supination.

What is Osteokinematics and Arthrokinematics?

‘Arthrokinematics’ refers to the movement of joint surfaces. Arthrokinematics differs from Osteokinematics – in general Osteokinematics means bone movement and Arthrokinematics joint movement. The angular movement of bones in the human body occurs as a result of a combination of rolls, spins, and slides.

What is joint congruency?

Joint congruence is the measurement of two opposing joint surfaces as they relate to one another considering the 3D shape contour of each bone at their interface. For example, relating the femoral condyle to the tibial plateau or the temperomandibular condyle to the fossa. Read more.

What is a loose-packed position?

loose-packed po·si·tion (lūs’pakt pŏ-zish’ŏn) A position of a joint in which the joint surfaces are not congruent and the joint capsule is lax. See also: open-packed position.

What is ulnar flexion?

Ulnar deviation, otherwise known as ulnar flexion, is the movement of bending the wrist to the little finger, or ulnar bone, side. Radial deviation, otherwise known as radial flexion, is the movement of bending the wrist to the thumb, or radial bone, side.

What is the close packed position for the shoulder joint?

The close-packed position of the glenohumeral joint is abduction and external rotation, while open packed (resting) position is abduction (40-50°) with horizontal adduction (30°). The joints’ capsular pattern is external rotation, followed by abduction, internal rotation and flexion.

Which position is the closed packed position of the ankle?

dorsiflexion
The closed packed position is dorsiflexion and the open packed position of the ankle joint is plantar flexion. Open packed positions have the highest risk of ligamentous injury.