Property and equipment, net consist of the following (in thousands, except as indicated):


	Useful lives (in years)	March 31, 2026			December 31, 2025
Surgical instruments	4	$	325,432		$	311,517
Machinery and equipment	7		13,208			13,123
Computer equipment	3		32,687			32,434
Office furniture and equipment	5		6,264			6,548
Leasehold improvements	various		4,421			4,402
Construction in progress	n/a		1,331			646
			383,343			368,670
Less: accumulated depreciation and amortization			(245,298	)		(233,346	)
Property and equipment, net		$	138,045		$	135,324

Total depreciation and amortization expense was $14.6 million and $15.8 million, respectively, for the three months ended March 31, 2026 and 2025. Construction in progress is not depreciated until placed in service. Property and equipment, net includes assets under financing leases and the related amortization of assets under financing leases is included in depreciation expense.