Table 1: Transition of bone turnover markers

Marker (units)	Pre-injury of periprosthetic fracture	Post-injury of periprosthetic fracture	2 weeks post-operation	4 weeks post-operation	Reference range
BAP (μg/l)	14.2	9.6	27.4	31	9.6-35.4
ucOC (ng/ml)	<0.38	<0.38	0.78	5.9	<4.5
OC (ng/ml)		<1	<1	3.2	3.1-12.7
PINP (ng/ml)	21.4			185	27.0-109.3
TRAP5b (mU/dl)	296	204	463	427	120-420
u-NTX/Cre (nmolBCE/mmol·Cr)		23.7	69.1	90.5	14.3-89.0
intact PTH (pg/ml)	39	32	17	19	10-65
25OHD (ng/ml)	13	12			20- {Ross, 2011 #106}

Abbreviations: BAP: Bone Alkaline Phosphatase, ucOC: Uncarboxylated Osteocalcin, OC: Osteocalcin, PINP" Type I Procollagen-N-propeptide, TRAP: Tartrate-Resistant Acid Phosphatase, NTX: Type I Collagen Crosslinked N-Telopeptide, PTH: Parathyroid Hormone, 25OHD: 25- Hydroxyvitamin D