Probably fixes things

code/modules/mob/living/carbon/human/human.dm

@@ -66,7 +66,7 @@
 
 /mob/living/carbon/human/Destroy()
 	QDEL_LIST(bodyparts)
-	QDEL_LIST(splinted_limbs)
+	splinted_limbs.Cut()
 	return ..()
 
 /mob/living/carbon/human/dummy

code/modules/surgery/organs/organ_external.dm

@@ -953,6 +953,8 @@ Note that amputating the affected organ does in fact remove the infection from t
 
 	status |= ORGAN_DESTROYED
 	victim.bad_external_organs -= src
+	if(status & ORGAN_SPLINTED)
+		victim.splinted_limbs -= src
 
 	for(var/implant in implants) //todo: check if this can be left alone
 		qdel(implant)