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Technique guide are not considered high yield topics for orthopaedic standardized exams including the ABOS, EBOT and RC.
Figures A-E show the neutral lateral cervical radiographs and corresponding T2-weighted MRI of 5 patients with symptoms and physical exam findings consistent with cervical myelopathy. In which of these patients would a cervical laminoplasty alone be contraindicated as surgical treatment?
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A 45-year-old man presents to your office with difficulty ambulating and buttoning his shirt. It started two years ago but has worsened significantly over the last year. On physical exam he is unable to perform a tandem gait and has a positive Hoffman's sign bilaterally, however he has no clonus and a down-going babinski bilaterally. He has 4/5 strength in his hands, but 5/5 strength in all other muscle groups. Figure A is a sagittal MRI. Figures B and C are an axial MRI cuts through C4/5 and C5/6, respectively. What is the appropriate next step?
Physical therapy and anti-inflammatory medication
Anterior cervical diskectomy and fusion
Posterior cervical laminotomy-foraminotomy
An 80-year-old man complains of neck pain and worsening upper extremity weakness after striking his forehead during a fall. For the last 2 years, he has been using a walker because of frequent falls, and no longer wears dress shirts because of difficulty with buttons. Examination reveals a positive finger-escape sign, and he is unable to make a fist and release 10 times in 10 seconds. Distal lower extremity muscle groups are stronger than proximal muscle groups. There is no instability on flexion-extension radiographs. An MRI image is shown in Figure A. Which of the following is the most appropriate treatment of the options listed?
MRI of the lumbar spine
C4 corpectomy and instrumented fusion
C4 and C5 corpectomy and anterior instrumented fusion
Postoperative radiculopathy is a known complication of posterior cervical decompression for myelopathy. One potential mechanism of nerve root injury is thought to be tethering of the nerve root with dorsal migration of the spinal cord. What is the most common radicular pattern seen with this condition?
Motor-dominant radiculopathy with weakness of the deltoid
Sensory-dominant radiculopathy with pain in the lateral shoulder
Motor-dominant radiculopathy with weakness of the wrist extensors
Sensory-dominant radiculopathy with pain in the lateral forearm
Motor-dominant radiculopathy with weakness of the triceps
A 50-year-old female presents with 3 years of increasing clumsiness in her hands that has progressed to the point that it is now difficult to open jars and use her keys. On physical exam she is unable to perform a tandem gait, has positive Hoffman’s signs bilaterally, and has 3+ patellar reflexes. She has 5/5 strength in all her major muscle groups. Figure A is her mid sagittal MRI. Figure B, C and D are axial images at C4/5, C5/6 and C6/7 respectively. What is the most appropriate treatment?
Physical therapy and close observation
Physical therapy, an epidural steroid injection and evaluation after the injection
C5/6 and C6/7 Anterior Cervical Discectomy and Fusion
C5, C6 and C7 posterior laminectomy
Posterior C6 and C7 foraminotomies
A 35-year-old man complains of clumsiness when buttoning his shirt and frequent episodes of falling when ambulating. Further work-up reveals congenital cervical spinal stenosis with spinal cord compression. Because of his young age, posterior laminoplasty is performed. Which nerve root is most likely to be adversely affected following surgery?
All of the following clinical signs are characteristic of an upper motor neuron disorder EXCEPT
Exaggerated deep tendon reflexes
A 70-year-old presents with gait instability and difficulty buttoning his shirts which has been progressively worsening over the last several months. His physical exam is notable for exaggerated patellar reflexes and sustained clonus. The provocative maneuver shown in Figure V would most likely produce which of the following symptoms or physical exam finding?
Electric shock-like sensations that radiate down the spine and into the extremities
Involuntary contraction of the thumb IP joint
Spontaneously abduction of the 5th digit
Spontaneously extension of the great toe
Unilateral arm pain and paresthesias in a dermatomal distribution
Which of the following variables has the strongest association with poor clinical outcomes in patients who undergo expansive laminoplasty for cervical spondylotic myelopathy?
Duration of symptoms
Local kyphosis angle > 13 degrees
MRI finding of CSF effacement
In patients with symptoms of cervical myelopathy, what variable is associated with improved outcomes with nonoperative management?
Increased Central Motor Conduction Time (CMCT)
Transverse area of the spinal cord >70mm2
Isolated low intramedullary signal on T1WI
A midsagittal diameter of the spinal canal of <13mm
A 56-year-old male presents with gait imbalance and decreased manual dexterity. Sagittal T2 MRI images are shown in Figures A and B. What is the most appropriate surgical management?
Anterior decompression and fusion
Laminectomy and fusion
A 51-year-old presents for evaluation of clumsiness of her hands. She complaints of difficulty with buttoning her shirt. On physical exam she is unable to preform a tandem gait. The strength in her upper extremities proximally is graded a 4/5, but she has significant bilateral intrinsic hand weakness and a positive Hoffmann's sign. When told to hold her fingers in an extended and adducted position, her ring and small fingers flex and abduct within 20 seconds. What is the most appropriate next step in management?
Reassurance and period of observation
Night splinting in cock-up wrist splints
Carpal tunnel corticosteroid injection
Electromyographic studies of the upper extremities
Cervical Spine MRI
A 47-year old female with Type-2 diabetes and a pacemaker presents with bilateral buttock and leg pain that is worse with prolonged walking and improves with sitting. Her lower extremity symptoms are severe enough that she reports she feels "unstable" on her feet. Physical exam shows 5/5 strength in all muscles groups in the lower extremity. Figure V shows a result of forced ankle dorsiflexion on physical exam. A lumbar myelogram is performed and shown in Figure A, B, and C. What is the most appropriate next step in treatment.
Lumbar decompression with arthrodesis
A trial of physical therapy and NSAIDS
Lumbar epidural steroid injections
CT myelogram of cervical spine
A 67-year-old woman presents with low back pain and bilateral buttock and leg pain. She prefers to stoop over the shopping cart whenever shopping. She recently noticed difficulty picking up small objects and buttoning her shirt. Physical exam shows normal strength in her lower extremities, and 3+ bilateral patellar reflexes. Gait examination shows a broad, unsteady gait. Flexion and extension radiographs of the lumbar spine are shown in Figure A and B. A lumbar MRI is shown in Figure C. What is the most appropriate next step in management?
Lumbar decompression only
Lumbar decompression and instrumented fusion
MRI of the cervical spine
Lumbar epidural injection
Which classification system for cervical myelopathy focuses exclusively on lower extremity function?
Japanese Orthopaedic Association
Modified Japanese Orthopaedic Association
A 68-year-old female presents with progressive loss of ability to ambulate and dexterity problems with her hands. Six months ago she was able to walk with a cane, but now has difficulty with ambulating with a walker. She also reports difficulty with her hands and needs assistance with eating. Physical exam shows limited neck extension. Radiographs, tomography, and magnetic-resonance-imaging are shown in Figure A, B, and C respectively. What is the most appropriate treatment?
NSAIDS, physical therapy, and clinical observation
C3 to C6 cervical laminectomy
C3 to C6 laminoplasty using an open-door technique
C3 to C6 decompressive laminectomy with instrumented fusion
Multilevel anterior cervical decompression with strut grafting and anterior plate fixation, followed by posterior decompression and fusion
A 56-year-old woman presents for initial evaluation of her neck pain which has been worsened by activity for the last several years. On exam, she has 5/5 motor strength throughout bilateral upper and lower extremities. She has a normal gait and no difficulties with manual dexterity. Reflex testing shows hyperreflexia in bilateral Achilles tendons. Lateral radiographs are shown in Figure A, and MRI scan is shown in Figures B and C. What is the most appropriate management?
C4-7 anterior decompression with instrumented fusion
C4-7 posterior decompression with instrumented fusion
C4-7 posterior decompression without fusion
C5/6 anterior discectomy and fusion
A 63-year-old female presents with a broad-based shuffling gait, loss of manual dexterity, and exaggerated deep tendon reflexes in the lower extremities. A T2-weighted MRI scan is shown in Figure A. What is the most appropriate treatment?
C4 to C7 cervical laminectomy
C4 to C7 cervical laminectomy with fusion
C4 to C7 laminoplasty with plate fixation
Multilevel anterior cervical decompression with fusion and stabilization
Immobilization in a halo orthosis for 6 weeks followed by gradual ROM exercises
A 66-year-old male presents with neck pain, difficulty with fine motor activities like buttoning shirts, and mild gait instability. On physical examination he has 5 of 5 motor strength in all muscles groups in his upper and lower extremities, a bilateral Hoffman sign, bilateral 3+ patellar reflexes, 3 beats of clonus on the right, and no clonus on the left. Radiographs show segmental kyphosis of 12 degrees from C4 to C7. MRI shows circumferential compression at C5/6 with complete effacement of CSF and T2 intramedullary signal. What is the most accurate description of how his symptoms will progress over time?
Stable over time.
Improvement following a course of high-dose IV spinal steroids.
Improvement following a period of rest, physical therapy, and oral medication.
Slow progression in a pattern of stepwise deterioration following periods of stable symptoms.
Rapid and serious deterioration requiring urgent surgical treatment.
Following a C3-C7 laminoplasty in a myelopathic patient with cervical stenosis, the most common neurologic complication would manifest with which of the following new postoperative exam findings
Change in voice and difficulty swallowing
Deviation of the tongue
Ptosis, miosis, anhydrosis