Table 5.

COMP-Related Pseudoachondroplasia: Recommended Surveillance

System/ConcernEvaluationFrequency
Growth Height measurement & plotting of growth on COMP-PSACH growth chartAt each visit throughout childhood
Skeletal manifestations Assessment w/orthopedist for:
  • Symptoms related to joint hypermobility
  • Symptomatic lower limb malalignment
  • Evidence of kyphoscoliosis
  • Evidence of degenerative joint disease manifesting as joint pain
Annually or at each visit
Radiographs of spine or affected jointsAs needed per orthopedist or clinical geneticist
Neurologic manifestations Assess for signs/symptoms of spinal cord compression secondary to odontoid hypoplasiaAt each visit in early childhood
Eval of cervical vertebrae by flexion/extension radiographs or cervical spine MRI, esp in persons w/neurologic symptoms suggestive of cord compressionAs needed
Psychosocial Assess for psychosocial issues related to short stature, incl stigmatization & discriminationAnnually or at each visit

COMP-PSACH = COMP-related pseudoachondroplasia

From: COMP-Related Pseudoachondroplasia

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