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- Tendon weaving technique (Pulvertaft)
- Minimum of 3 weaves
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- Motor failure - poor motor education and inadequate donor strength
- Mobility failure - scar or joint contracture
- Excursion failure - poor tensioning
- Technical failure - rupture of tendon weave
- Most common is due to adhesions
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- Total 9 S
- Joint - no joint contractures (Supple joint)
- Bed - no infection (aSeptic bed)
- Donor - 8S - Strong donor (grade 4 or 5 as it will drop one grade), Sacrificable Donor, Sufficient length/ amplitude (Smith's 3-5-7 rule), Synergistic (fire in concert with paralyzed muscles), Straight line Pull, Single tendon for single function.
- Patient - good compliance to PT (Suitable Patient)
- Smith 3-5-7 =
- 3cm for wrist flexor and extensor
- 5cm - Finger extensors
- 7cm - Finger flexors