A transverse process fracture occurs when part of the protrusion is cracked. It’s not a super common injury because a couple of different factors and forces typically need to occur in order for the transverse process to fracture, and the area is usually well-protected by muscles in the area. Transverse process fractures of the lumbar spine often are considered benign fractures related to direct trauma or psoas muscle avulsion. Treatment of these usually stable injuries is primarily administered when the patient becomes symptomatic. This injury can take anywhere from 2-6 weeks to fully heal, and it generally heals fully without the need for surgery. Normal treatment routines involve rest and pain medications, and a back brace is sometimes used to stabilize the spine and limit discomfort from movement.
Pathophysiology
- Considered stable fractures
- Isolated fractures do not involve lamina, pedicle, or facets
- Often extend into multiple segments
Causes
- Typically high energy blunt trauma from a motor vehicle accident or collision sport
- Less commonly, falls, assault, penetrating injury, crush injury, bicycle accident
- Isolated TP fractures due to MVC more common in children than in adults
- Isolated TP fractures due to falls more common in adults
- Can be seen in the setting of extreme rotation and/or side bending
Pathoanatomy
- Transverse Process
- Attaches to Vertebrae
- Projects laterally from region where pedicle meets lamina
- In the upper 6 cervical spinal levels, the Vertebral Artery passes through the transverse foramen
- Thoracic and lumbar TPs do not have a transverse foramen
Associated Injuries
- Cervical TP fracture
- Brachial Plexopathy
- Vertebral Arty Dissection
- Thoracolumbar TP fracture
- Abdominal injuries
- Pediatric thoracic TP fractures has a 70% correlation with head or chest injury, 20% with abdominal[4]
- Pediatric lumbar TP fractures correlate with chest (41%), head (30%) injuries
Differential Diagnosis
Differential Diagnosis Neck Pain
- Fractures
- C1
- Jefferson Fracture
- C2
- Odontoid Fracture
- Hangman’s Fracture
- C3-C7
- Cervical Spinous Process Fracture
- Cervical Teardrop Fracture
- Cervical Compression Fracture
- Transverse Process Fracture
- C1
- Subluxations and Dislocations
- Atlanto Occipital Dissociation
- Cervical Facet Dislocation
- Atlantoaxial Instability
- Neuropathic
- Cervical Cord Neuropraxia
- Cervical Radiculopathy
- Cervical Myelopathy
- Muscle and Tendon
- Cervical Whiplash
- Myofascial Neck Pain
- Pediatric/ Congenital
- Klippel Feil Syndrome
- Cervical Congenital Anomalies
- Pseudosubluxation
- Other Etiologies
- Cervical Disc Disease
- Cervical Spine Stenosis
- Cervical Vascular Injuries
- Spear Tackler’s Spine
Differential Diagnosis Back Pain
- Fractures
- Compression Fracture
- Burst Fracture
- Chance Fracture
- Spinous Process Fracture
- Transverse Process Fracture
- Rib Fracture
- Sacral Stress Fracture
- Neurological
- Lumbar Radiculopathy
- Cauda Equina Syndrome
- Sciatica
- Musculoskeletal
- Mechanical Back Pain
- Scoliosis
- Kyphosis
- Herniated Disc
- Facet Joint Pain
- Sacroilliac Joint Pain
- Spinal Stenosis
- Spondylolysis
- Spondylolisthesis
- Hyperlordosis
- Baastrups Disease
- Autoimmune
- Ankylosing Spondylitis
- Infectious
- Spinal Epidural Abscess
- Osteomyelitis
- Pediatric
- Scheuermann’s Disease
Diagnosis
- General: Physical Exam Neck, Physical Exam Back
- History
- Typically report a history of blunt trauma
- Physical Exam
- Point tenderness at the site of fracture
- In the cervical spine, a complete neuro exam is important
-
The axial cut of T7 demonstrating non-displaced right transverse process fracture
AP radiograph demonstrating right L1 transverse process fracture
Radiographs
- Standard C spine films may be indicated
- Sensitivity is not great
- It may be missed on up to 11% of patients undergoing evaluation after trauma[5]
CT
- More sensitive
- Indicated in the setting of trauma
Management
Prognosis
- As isolated injuries, patients have an excellent prognosis
- One study reported 100% of patients were neurologically intact at presentation which was preserved at 19 months of follow-up [4]
- A second study found the cervical range of motion and mean neck disability index to be normal at 27 months of follow up[6]
- Approximately 1% report persistent TP fracture-related back pain[7]
Nonoperative
- Standard treatment is conservative
- Some studies event suggest no specific treatment or restrictions
- Pain management including NSAIDs, Acetaminophen, and Opiates
- Muscle relaxers are commonly prescribed
- Bracing with Cervical Collar, Corset]] for comfort
- Not intended to stabilize the spine
- No evidence that these devices promote healing, prevent worsening of injuries