Squeak No More, My Gutted Friends

   My son's dog Sam is with us for two years.  Sam is a sweet dog, but is not easily amused.  An hour walk, a half hour of Kong ball is required to calm him.   Sadly, Sam has had major knee surgery and is confined to small quarters.  
    His recovery is not going well.  It is tough to hobble a springing pogo stick.  As leaping is forbidden, Sam has returned to the lesser sport of gutting squeaky toys.  The above picture shows the recently disemsqueaked. 
  Even though he is on doggy-downers, he bounces around his small pen, thrashing the toys as if they are rabid squirrels. If we remove the toys he whines piteously
   After three weeks he should be allowed to take several 10 minute walks.  But bouncing has set him back.  My husband frets that this expensive surgery was in vain.  Or God forbid, will have to be redone.  And certainly, Sam is in worse shape than he was two weeks ago.