ACVSMR study materials
ACVSMR study resources

Concussion-Like Event and Return-to-Ride Decision in an Eventing Rider-Horse Pair

ACVSMR · Put your knowledge to work in context.

All case studies

Concussion-Like Event and Return-to-Ride Decision in an Eventing Rider-Horse Pair

During a cross-country schooling session, a 28-year-old amateur rider falls from her 12-year-old Irish Sport Horse at a drop fence. She reports a brief loss of consciousness (witnessed, approximately 10 seconds), headache, and nausea, and is confused about the sequence of events. She is helmeted; the helmet is visibly cracked. The horse trotted away, is sound at walk and trot, but is reluctant to approach the fence again and shows mild hindlimb stiffness on the right. The rider wants to remount and finish the session, and asks you (her veterinarian, who is also a certified equestrian coach) what to do.

1. Prioritize the immediate management of the rider and justify each action.

Read the worked answer

Immediate management - rider:

  • Treat as a suspected concussion. Witnessed loss of consciousness, headache, nausea, and confusion are red flags. Remove from sport immediately; do not allow remounting or driving.
  • Do not allow her to "shake it off." The risk of second-impact syndrome and worsening injury is real, and symptoms can evolve over hours.
  • Assess and monitor: level of consciousness, orientation, pupils, headache, nausea/vomiting, balance, and any focal neurologic signs. Escalate to emergency medical services if there is any deterioration, repeated vomiting, severe headache, seizure, or asymmetric pupils.
  • Helmet: a cracked helmet is single-use and must be replaced; it has done its job and cannot be relied on again.
  • Do not let her drive. Arrange transport.

Immediate management - horse:

  • The horse is sound at walk and trot but shows right hindlimb stiffness and reluctance at the fence. Reluctance may reflect pain, fear, or both. I would stop the session, perform a careful musculoskeletal examination, and monitor for developing lameness. A mild stiffness can evolve; re-examine after a period of rest.
  • The horse should not be asked to jump again today.

Justification: The rider's welfare is the priority and is non-negotiable; concussion is a medical emergency until proven otherwise. The horse's reluctance is a welfare signal that warrants investigation, not correction.

2. The rider insists she is "fine" and wants to compete in 6 days. Describe the return-to-ride and return-to-competition framework you would apply, and how you would communicate it.

Read the worked answer

Framework - graduated return to sport after suspected concussion:

  • Complete physical and cognitive rest until symptom-free at rest. No riding, no driving, no strenuous cognitive or physical activity.
  • Stepwise return once asymptomatic: light activity → aerobic exercise → sport-specific non-contact training → full training → competition, with at least 24 hours at each step and return to the previous step if symptoms recur.
  • Medical clearance by a physician experienced in concussion management before return to riding. As her veterinarian and coach, I am not the appropriate person to medically clear her; I would insist on physician assessment.
  • Six days is not a realistic or safe timeline for a symptomatic concussion with loss of consciousness. I would state this clearly.

Communication:

  • Be firm, calm, and specific: "You had a loss of consciousness and you are still symptomatic. You cannot ride today and you should not compete in 6 days. This is not a judgment about toughness."
  • Explain the risks (second-impact syndrome, prolonged recovery) in plain language.
  • Provide a written plan and involve her physician and, if applicable, her coach and family.
  • Document the advice given and her response.
  • Offer an alternative: support her in withdrawing the entry and set a re-evaluation date.

3. The horse's right hindlimb stiffness persists at 48 hours and the rider (now recovering) asks whether the horse should be evaluated before she returns to riding. Explain your reasoning and the professional boundaries involved in your dual role.

Read the worked answer

Reasoning:

  • Persistent stiffness at 48 hours is a clinical finding that warrants evaluation. Mild hindlimb stiffness after a fall could reflect a soft tissue strain, a hoof or foot problem, or a more serious injury. It should not be assumed to be behavioral.
  • The horse's reluctance at the fence may be pain-related or fear-related; both are relevant to welfare and to the safety of future jumping. A pain-free horse is a safer horse.
  • A full lameness examination including flexion tests, gait evaluation, and imaging as indicated is appropriate before returning to jumping, particularly at a level that involves drop fences.

Professional boundaries in the dual role:

  • As her veterinarian and coach, I have a conflict of interest if I am asked to evaluate her fitness to ride. I should not medically clear her; that belongs to a physician.
  • For the horse, I can act as the treating veterinarian, but I should be transparent about my coaching relationship and ensure the owner understands the basis of my recommendations.
  • Document the examination findings, advice, and any referrals.
  • Prioritize welfare of both horse and rider over competition schedules, and communicate that clearly.