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Case of the week. A thread 
#orthotwitter
With written permission.
73 yo M with hx of L TKA 12 yrs ago at OSH - did well until 8 mo ago when he jumped off the back of a truck.
Pain. Swelling. Flexion instability.
Exam:
Stable varus / valgus
+ post drawer
#orthotwitter
With written permission.
73 yo M with hx of L TKA 12 yrs ago at OSH - did well until 8 mo ago when he jumped off the back of a truck.
Pain. Swelling. Flexion instability.
Exam:
Stable varus / valgus
+ post drawer
Xrays show a well fixed Scorpio PS TKA in neutral alignment.
Scorpio has a low profile box and can be mistaken for CR.
Scorpio has a low profile box and can be mistaken for CR.
Sent to us for eval painful knee.
Bone scan from OSH negative.
Infectious workup negative
Next steps?
Bone scan from OSH negative.
Infectious workup negative
Next steps?
Planning: 5 Ps
Prior planning prevents poor performance
- consider flex/ex mismatch: Legion revision w cones on backup
- given a well functioning knee, suddenly instability w trauma - think fractured post - have poly liners available
Prior planning prevents poor performance
- consider flex/ex mismatch: Legion revision w cones on backup
- given a well functioning knee, suddenly instability w trauma - think fractured post - have poly liners available
Intra-op:
Fractured post.
Liner revision only.
See post still in the notch.
Fractured post.
Liner revision only.
See post still in the notch.
