Tuesday, 1 September 2009

Patellofemoral instabilty in 18 yr old girl

We have a 18 yr old aspiring nurse with H/0 of recurrant dislocation patella and peripatellar pain. o/e. She has mild ligamentous laxity, No end point of MPFL with definite medial patellar laxity, +ve apprehension for patellar instabity, normal TT/TG distance, no lateral femoral condyle hyoplasia, bilateral increased femoral anteversion value- 25 degrees. She need to join college in 6 weeks. No instabilty in the opposite knee but has patellofemoral pain(lateral facet)

Do we correct anteversion first or MPFL reconstruction first or do we do both simultaneously. Do we use a IM Nail to stabilse the osteotomy? Not much of a fan of plates.

Had a comment from Dr. Sachin Tapasvi suggesting MPFL first and Big b suugesting de rotation first.

We were wondering whether to do both together. But the patient was advised conservative treatment- Physiotherapy elsewhere> Guys Magic still plays a role in medicine.

to answer sreenath, Axial cuts along the neck and trochanter superimposed on axial cuts at the epicondyle will give us the anterversion.

2 comments: