Table 1.

Types of readmissions grouped according to cause

Reasons for orthopaedic/technical readmission	Reasons for medical readmission
Periprosthetic fracture	Atrial fibrillation
Joint infection	Appendicitis
Hematoma	Cellulitis
Dislocation	Chest pain, not otherwise specified
Subsidence without fracture	Clostridium difficile infection
	Dehydration
	Diverticular disease
	Ileus
	Myocardial infarction
	Cholelithiasis
	Nausea
	Nephrolithiasis
	Pain control
	Pneumonia
	Alcohol withdrawal
	Sepsis
	Small bowel obstruction
	Seroma
	Sickle cell crisis
	Subarachnoid hemorrhage
	Urinary tract infection
	Vaginal bleeding