ECC Patient Assessment & Clinical Evaluation 3 — Questions and Answers
Question 1: When evaluating end-feel during passive motion palpation of an equine cervical segment, a 'hard' end-feel before the expected range of motion endpoint is most consistent with:
- Osteophyte formation or bony ankylosis (Correct answer)
- Acute muscle spasm
- Ligamentous laxity
- Normal physiologic barrier
Correct answer: Osteophyte formation or bony ankylosis
A hard, abrupt end-feel before the expected physiologic limit indicates bony restriction such as osteophytes or articular ankylosis limiting passive range of motion.
Question 2: The 'stifle test' used in equine chiropractic assessment evaluates the ability of the horse to resist which applied force?
- Lateral pressure applied to the medial aspect of the stifle while the limb is weight-bearing (Correct answer)
- Cranial drawer force on the femoropatellar joint
- Compressive load along the limb axis during flexion
- Traction applied to the gaskin musculature
Correct answer: Lateral pressure applied to the medial aspect of the stifle while the limb is weight-bearing
The stifle test applies mediolateral pressure to the weight-bearing stifle; abnormal give or pain response indicates articular instability or periarticular soft tissue dysfunction.
Question 3: During gait analysis, a horse demonstrates 'bunny hopping' at the canter, advancing both hindlimbs simultaneously. This pattern is most often associated with:
- Bilateral hindlimb or lumbosacral pain causing the horse to compensate by symmetric hindlimb loading (Correct answer)
- Unilateral forelimb lameness at the canter
- Cervical spinal cord compression
- Normal movement in draft horses
Correct answer: Bilateral hindlimb or lumbosacral pain causing the horse to compensate by symmetric hindlimb loading
Bunny hopping is a compensatory gait modification indicating bilateral hindlimb or lumbosacral discomfort that the horse relieves by eliminating the asymmetric canter footfall pattern.
Question 4: In the context of equine chiropractic assessment, 'motion palpation' refers specifically to evaluating:
- The passive intervertebral joint play and accessory motion between adjacent vertebrae (Correct answer)
- The active voluntary movement range of the entire vertebral column
- The resting muscle tone along the spine at standstill
- The neurological reflexes elicited along the dorsal midline
Correct answer: The passive intervertebral joint play and accessory motion between adjacent vertebrae
Motion palpation assesses the small passive accessory joint movements (joint play) between individual vertebral segments that cannot be voluntarily produced by the horse.
Question 5: Which reflex test involves stroking the lateral thoracolumbar region and observing for ipsilateral spinal flexion toward the stimulus?
- Cutaneous trunci reflex used as a segmental spinal level indicator (Correct answer)
- Patellar reflex
- Cervicofacial reflex
- Tail flick reflex
Correct answer: Cutaneous trunci reflex used as a segmental spinal level indicator
Stimulating the cutaneous trunci (panniculus) reflex by stroking the flank activates a segmental spinal arc and its absence at a specific dermatomal level can localize a spinal lesion.
Question 6: A horse exhibits resistance to mounting, difficulty with lateral work, and a 'cold back' upon saddling. Which area should be assessed first in the chiropractic examination?
- Thoracolumbar spine and associated paraspinal musculature (Correct answer)
- Cervical vertebrae C1-C3
- Tarsocrural joints bilaterally
- Temporomandibular joint
Correct answer: Thoracolumbar spine and associated paraspinal musculature
Saddle-region pain complaints (cold back, mounting resistance, lateral work difficulty) consistently implicate the thoracolumbar spine as the primary area of dysfunction.
Question 7: When assessing the nuchal ligament in horses, abnormal findings such as calcification or thickening are best detected by which assessment method?
- Combined palpation of the ligamentous structure along its course from the poll to the withers, noting texture and symmetry (Correct answer)
- Observation of head position at rest only
- Auscultation of the cervical region
- Traction test applied at C1
Correct answer: Combined palpation of the ligamentous structure along its course from the poll to the withers, noting texture and symmetry
Systematic palpation of the nuchal ligament from the poll to T3 allows detection of nodular calcifications, swelling, or asymmetrical thickening that indicate ligament pathology.
ECC Patient Assessment & Clinical Evaluation 3
When evaluating end-feel during passive motion palpation of an equine cervical segment, a 'hard' end-feel before the expected range of motion endpoint is most consistent with: