muscle/tendon Flashcards
what is partial foot amputation
amputation of 2 consecutive digits
what is involved with central digit amputation for recon?
middiaphyseal osteotomy of metacarpal/tarsal bones and movement of distal m2 or m5 directly under 3rd/4th -> secure with plates
what are 2 additional foot recon techniques?
phalangeal fillet; full skin graft
what is recurrence rate of infiltrative lipoma
36%
for liposarcoma, what is factor associated with survival time? what are MST?
type of excision -
marginal 649 days
wide 1188 days
what are 1 yr survival rates SCC subungual vs other locations on digits
subungual - 95%
other areas - 60%
what breed is overrepresented with digital malignant melanoma? what is mst with vaccine + sx ?
Scotties, 351 d( with mets, without - longer)
List differential diagnosis for neoplasms of joint
synovial cell sarcoma, synovial myxoma, histiocytic sarcoma
for histiocytic sarcoma, what breeds predominate?
rotties, bernes mountain
for synovial myxoma, what breed predominate?
doberman
for muscular hemangiosarcoma, what is MST and how does it compare with sq HSA?
IM 272 d
SQ 1189 d
what is met rate and MST (sx alone) for chondrosarcoma ?
met 28%; MST 979 d in one study
for cats with OSA, what % is extraskeletal?
and of the skeletal what % is appendicular?
38%
55%
met rate for feline OSA?
10%
axial or appendicular feline OSA worse prognosis?
axial ( recurrence rate of 44%)
what are 3 main complications of limb spare sx? and their complication rates
infection (40-75%), local recurrence (25%), implant failure (30-40%)
what is prognosis and outcome for limb spare of proximal humerus?
poor; complication rate is high
what are MST with sx + chemo in OSA
amp alone - 20wks
amp + chemo - 290- 425 d
what are 2 modifications of vascularized ulnar transposition
- lateral manus translation
- microvascular transfer ipsilateral distal ulna
what are 2 modifications of bone transport osteogenesis? limb use at follow up?
- double bone transport osteogenesis
- transverse bone transport osteogenesis
- excellent
what is complication rate for irradiated autograft technique?
69% *nice
for limb spare surgery, ideally <__% radius to be involved for consideration
<50%
what is major disadvantage of cortical allograft for limb spare?
high infection rate (~50%) - forms sequestrum
also needs bone bank
what are the 2 main endoprosthesis
Kuntz - 3/6 L SS bar with flared end.
Biomedtrix tantalum implant (bacteriophobic, can drill screw in)