Tuesday 14 August 2012

33 yer old male post osteotomy for opinion from dr. rajesh



Ensure that the pain is from the hip itself as the lateral joint space is reasonable although inferiomedially it looks narrower. If in doubt put  local in the hip and reasses pain relief. 

ANY takers for FAI here- SCOPE and proceed

 If a THR is planned 1would consider the follow Problems including  insitu implant- remove the scews  after dislocation to avoid intraop fractures. the plate can be left alone. sometimes one might be able to put a small stem between the screws in cemented situation. Send intraop cultures
 the stem  should ideally be longer then the plate to avoid postop fractures.
some doctors use  preop SWD to heat the implant to loosen it preop, other heat the screws with the cautery to loosen the screws.
keep broken screw removal kit in case of problems and include the philips head screw driver  incase of older generation screws
2.  Varus neck with a shorter neck. bigger offset stems  would help to maintain the abductor tension as well as to prevent lengthening in case of  using a hard on hard bearing obtaining a tight reduction and avoid stripe wear.
 longer  stem preferbly modular proximal loading stem like SROM to make revisions easier in case of  ceramic head fracture. one could use a longer cemented sem like exeter with offset options.
3. avoid introp and postop fractures.
as far as your questions on entry point to avoid varus stem.

I would extend a line proximally on the xray as shown below from the medial edge of lateral cortex of the diaphysis and measure it from the lateral trochanteric cortex(orange Line) to make it your starting point introp. some companies have a lateraliser instrument to further lateralise the entry.

good luck


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