lower back pain

Leg Length Discrepancy

Issue

 

Most common reason for litigation against orthopaedic surgeons in THR

Usually from lengthening

 

Complications of LLD

 

1.  Nerve palsy

 

Sciatic nerve - tolerate average 4.4cm lengthening

 

Common peroneal nerve - tolerate average 2.7 cm lengthening

 

Lengthen by up to 15-20% of the resting nerve length

- but in reality is unknown and multifactorial