In two cases, reflex sympathetic dystrophy (RSD) was due to herniated intervertebral disk at L4-5. In both cases, bone scanning with technetium 99m pyrophosphate was of value and its use is recommended in diagnosing mild or early cases of RSD. RSD may be the cause of persisting pain after disk surgery.
No takes yet. Share an insight, caveat, or question.
Carlson et al. (1977) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: