- Risk to the clinician (e.g. lack of patient compliance).
- Fracture in target bone (compartment syndrome risk)
- Attempt on target bone within 48 hours
- Overlying site infection
- Previous surgery near the insertion site (caution plates or implants)
- Severe obesity or disrupted anatomical landmarks
- Osteopetrosis (fracture risk)
- Osteogenesis Imperfecta
- Requirement for MRI (made using tungsten steel and are not MRI compatible)
