Table 4. Cause of MSI in survey, and extrapolated to population of Rwanda.

	Diagnosis	Number	Total in category (%)	Extrapolated number of that diagnostic category in Rwanda to nearest 1000 (95%CI)
A	Congenital deformity		45 (12%)	59,000 (95% CI 39,000–74,000)
	Polydactyly	16
	Syndactyly	2
	Other upper limb deformity	4
	Club foot	4
	Other lower limb deformity	12
	Spine deformity	1
	Cleft lip or cleft palate	2
	Multiple abnormalities	2
	Other congenital deformity	2
B	Trauma		122 (31%)	156,000 (95% CI 125,000–187,000)
	Fracture non or malunion	28
	Burn contracture	4
	Spine injury	3
	Head injury	3
	Joint chronic dislocation	6
	Other chronic joint injury	24
	Tendon, muscle or nerve injury	12
	Amputation	20
	Other traumatic MSI	22
C	Infective		15 (4%)	20,000 (95% CI 9,000–29,000)
	Joint infection	4
	Bone infection limb	8
	Bone infection spine	1
	Skin/soft tissue infection/wound	2
D	Neurological		35 (9%)	44,000 (95% CI 27,000–60,000)
	Polio	8
	Para/quadri/tetraplegia	11
	Cerebral palsy or developmental delay	5
	Peripheral nerve palsy	4
	Other neurological MSI	7
E	Other acquired non-traumatic non-infective		173 (44%)	216,000 (95% CI 182,000–245,000)
	Joint problem	52
	Angular limb deformity	38
	Skin/soft tissue tumour/swelling	12
	Spine deformity	2
	Spine pain	11
	Limb pain	5
	Limb swelling	5
	Other acquired	48
	TOTAL	390		488,000