PCR question

Hi guys. This week at the musculoskeletal placement we were discussing some PCR questions and this one was quite challenging. If guys want to have a go answering it will be interesting to see the different answers.I will summarize the case and the questions. Mrs A is a 25y.o female who was referred to physio following a motorcycle crash 3 months previously where she landed on her L shoulder. She also hit the left side of the head on the floor on impact. Since then she reported weakness (constant) in her R arm and pain (deep constant dull ache-sharp 3-7/10) and stiffness on the R side of the neck. She has been managing her pain with pain killers and at this stage feels that the weakness is more of an issue. 24H pattern: am-stiffness and pain in the neck for 1/2h, eases with movement, day-no pattern activity dependent, pm-1/2h getting to sleep, doesn’t wake her. Agg: R rot when reversing the car P2 6/10 increases imm, decreases 2min to neutral, holding the phone b/n sh and ear P2 5/10 increases imm, decreases 2min to neutral. Eases: heat, painkillers, NSAIDs, head still. O/E: Atrophy R scap & sh muscles, guarded posture, elevated R sh. AROM Cx PP 4/10, Ext FROM P1 EOR, *R Rot ½ ROM P2 Cx, *R SF ½ ROM P2 Cx. GHJ clearing: nil pure fl, abd or R ER. Neuro: reflexes – *R deltoid, biceps, braquioradialis absent, * strength – GH abd and elbow fl 0/5, sensation normal. PPIVMS: R Rot and R SF C4/5, C5/6 hypo, PAIVMs PA and unil PA C4,5,6,7 PCx and hypo, Palpation: upper trps hypertonic ++. No imaging.
Questions:
What is your probable diagnosis and classification and substantiate this from the subjective and objective. I will give some options: C5,6 cervical sprain with neurogenic pain/ Cervical traumatic radiculopathy with neuropathic pain.
What would your short and long term manage for this patient be?
If the neuro was clear how would this change your Mx for this patient?
Next week I send the answer discussed with the supervisor.

Good luck all on the last week of this placement!