Joint instability
| Classification according to ICD-10 | |
|---|---|
| M 24.2 | Ligament diseases |
| M 24.3 | Pathological dislocation and subluxation of a joint, not elsewhere classified |
| M 25.2 | Schlotterwinkel |
| ICD-10 online (WHO version 2019) | |
A joint instability (or flail joint ) is a reduction in the safe, stable guide of the joint forming bone during a movement with simultaneous abnormal increase in the possible range of movement.
This guidance usually takes place actively through the muscles and passively through the capsular and ligamentous apparatus .
The causes of a malfunction are:
- Capsule and / or ligament overstretching (joint laxity)
- abnormal shape of the bony articular surfaces
- Paralysis of the muscles
- Disorder of innervation (neurogenic arthropathy )
A subluxation is used when there is a significant increase in the possible range of motion . If the joint connection is completely broken, there is a dislocation ( dislocation ). If this happens again and again with physiological movements without additional force, one speaks of a habitual dislocation .
Individual evidence
- ↑ Lexicon Orthopedics
- ^ W. Pschyrembel: Clinical dictionary. Verlag Walter de Gruyter, 265th edition (2014) ISBN 3-11-018534-2 , p. 1500
