Histomorphometry. Implant inserted press-fit in cancellous bone. Parathyroid hormone (PTH) treatment vs. control. Tissue fraction of bone, marrow–like tissue, and fibrous tissue at implant surface (surface fraction) and concentric region 0–500 μm, region 500–1,000 μm, and region 1,000–2,000 μm (volume fraction). n (PTH) = 8, n(control) = 9. Median (interquartile range)

	Woven bone	Lamellar bone	Marrow	Fibrous
Interface
Control	11 (8–13)	6 (3–9)	84 (83–85)	0 (0–0)
PTH	15 (13–18)a	3 (2–5)	80 (76–82)a	0 (0–0)
Region 0–500 μm
Control	10 (4–13)	13 (5–16)	78 (77–80)	0 (0–0)
PTH	14 (10–17)	8 (6–13)	75 (72–79)	0 (0–1)
Region 500–1,000 μm
Control	4 (2–7)	20 (15–23)	74 (73–78)	0 (0–0)
PTH	7 (5–12)	13 (12–22)	77 (74–80)	0 (0–0)
Region 1,000–2,000 μm
Control	2 (1–3)	18 (16–20)	80 (79–82)	0 (0–0)
PTH	3 (3–4)b	15 (11–16) b	83 (81–85)	0 (0–0)

^a p < 0.05 (PTH compared to control). Mann-Whitney test.

^b p = 0.07 within region (PTH compared to control). Mann-Whitney test.