Type classification according to OTM Seifert/Dr. med. Steinfeldt
The type classification introduced internationally in 2001 supports us in orthosis consultation and the subsequent treatment. When designing an orthosis, individual variations in design and construction are combined. The classification is divided into 10 orthosis types, depending on the paralysis effect.
Type 1
- Failure of the foot-lifting muscles
Type 2
- In case of loss of the foot-lifting muscles,
- In case of ankle instability with malalignment (ankle or club foot),
- For leg length difference
Type 3
- Knee extension weakness
- Failure of the foot-lifting muscles
- In case of ankle instability with misalignment (ankle or club foot)
Type 4
- Failure of the foot-lifting and foot-lowering muscles
- For slight overstretching of the knee joint
- In case of ankle instability with misalignment (ankle or club foot)
- For leg length difference
Type 5
- In the case of high-grade overstretching of the knee joint with knee extension weakness
- For knee ligament instability (knock-knee or bow-knee)
Type 6
- Knee extension weakness
- In case of overstretching of the knee joint
- In case of weakness or failure of the foot lifter and weakness of the foot depression
optionally with carbon spring - If both sides of the orthosis are used
Type 7
- In case of knee extensor failure
- In case of weakness or failure of the foot lifter
Type 8
- In case of knee extensor failure
- In case of foot lifter failure
- For knee ligament instability (knock-knee or bow-knee)
- In case of ankle instability with misalignment (ankle or club foot)
- For leg length difference
Type 9
- In case of knee extensor failure
- For bending contracture in the knee joint
- With pointed foot contracture with combined leg length difference and clubfoot position
Type 10
- Failure of the foot-lifting muscles
- In case of ankle instability with misalignment (ankle or club foot)
- In case of knee extensor failure
- In case of hip extensor weakness or failure