Common Extensor Tendon Problems

3/19/2016

Common Extensor Tendon Problems

LAGS: Rupture, Attenuation, Adhesions

Susan Blackmore MS, OTR/L,CHT Sblackmore@

Permission to reproduce required: S. Blackmore 2016

Permission to reproduce required: S. Blackmore 2016

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3/19/2016

Extensor Lag:

Active is less than passive extension Ruptured, Adherent (STUCK) , Attenuated (GAP/STRETCHED), or altered extensor anatomy

Permission to reproduce required: S. Blackmore 2016

Permission to reproduce required: S. Blackmore 2016

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Differential Diagnosis: Is there Full Passive PIPJ extension?

? YES

? Low median/ulnar nerve deficit

Permission to reproduce required: S. Blackmore 2016

Differential Dx: Is there Full Passive PIPJ extension?

YES

Resolve flexor muscle tendon unit tightness

Permission to reproduce required: S. Blackmore 2016

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3/19/2016

Differential Dx:

Is there Full Passive PIPJ extension?

YES

Is there a motor

learning impairment?

Permission to reproduce required: S. Blackmore 2016

Differential Diagnosis: Is there Full Passive PIPJ extension?

NO

? Resolve Deficits to allow for examination of extensor function

Permission to reproduce required: S. Blackmore 2016

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Differential Dx: Achieve PIPJ passive extension

1. Resolve PIPJ capsular, Volar plate and ORL tightness 2. Identify changes to the joint (OA, Joint injury)

Permission to reproduce required: S. Blackmore 2016

3/19/2016

It IS an EXTENSOR LAG

Permission to reproduce required: S. Blackmore 2016

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