Osteotomy - Science method

Can a well-performed pelvic osteotomy compensate for a poorly performed capsulorrhaphy ? and vise versa?

Dear colleagues,

I am learning about Le Fort 1 osteotomy. The maxilla is cut transversely an may then be lowered. Hence, a gap will develop between the upper and lower part of the maxillary bone. This gap then closed with bone graft - however, I only noticed the frontal gap being closed with bone graft. What happens to the dorsal gap? Is it left open?

What if the maxilla is lowered dorsally by 10 mm: will this huge gap be left open, only stabilized by plates?

Thank you very much for your help.

I am very interested in videos showing le Fort 1 and BSSO III -osteotomies (prognath mandible). It would be very very nice to get the chance to watch them.

Best regards, Anne

For my thesis I'm in need of finding information on incorrect fitting patient specific surgical guides due to the partial volume effect in the segmentation of the taken CT data for a osteotomy procedure. Can anyone help me out? All tips are welcome!

Thanks and best regards,

Richard

"Long-term outcome of surgical treatment of developmental dyplasia of the hip using the Dega and Salter method of pelvic osteotomy with simultaneous intratrochanteric femoral osteotomy"

In the past, pelvis and proximal femur correction osteotomies were very often applied to ameliorate the biomechanics of dysplasic hips, not only in childhood, but also in adults. What is the nowadays trend ? Are these surgeries obsolete procedures today ?

Hallux valgus is considered to be a medial deviation of the first metatarsal and lateral deviation and/or rotation of the hallux, with or without medial soft-tissue enlargement of the first metatarsal head. In other words, a bunion. Typical surgery is a wedge corrective osteotomy near the proximal portion of the first metatarsal. Fixation is typically either a pin or headless screw. A regulatory agency has asked for a sheep metatarsal model to mimic this. Does anyone have experience? I do not see how this is relevant due to extreme bone ad loading differences.

can you use image j to plan for spine or long bone deformity osteotomies. if so, how? 

thanks much,

Ayo

23 y.o. male with posttraumatic knee varus, femur shortening. It is about 3 years after the accident. ROM: 5-45 deg. Knee is medially unstable. He walks without crutches, with moderate pain and severe limping. What kind of treatment can we propose to avoid further arthrosis and improve gait quality?

Recently, we had a case of 21yo woman with severe hallux valgus and flatfoot. We tried Lapidus procedure (TMT I arthrodesis and lateral release WITHOUT intermetatarsal stabilisation) and subcapital chevron derotational osteotomy for DMAA correction. Due to traction of the EHL effect was stil unsatisfactory. We decided to add the Akin procedure in the proximal phalanx as a "last hope" procedure. Cosmetic effect seems good. Do you have any experience with this method or do you do try anything different in such cases?

Do you perform derotational femoral osteotomy for all DDH >2y?

I need to know more about San Diego pelvic osteotomy.

Currently, at the Instituto Nacional de Pediatría, we are working on a mathematical model for sagittal synostosis that will help us to modify the osteotomy techniques to improve the cranial capacity with the reduced surgical risk for the patient.

The pelvic support osteotomy is a double level osteotomy of the femur with the aim to stabilize the pelvis. Pelvic support osteotomy can successfully correct a Trendelenburg gait and simultaneously restore knee alignment and correct lower-extremity length discrepancy. Using the special angulated plate for proximal valgus extension osteotomy and the distal lengthening osteotomy monolateral external fixator is a good alternative to increase the patient comfort.