A posterior stabilization system (100, 350, 370, 400, 800) comprising: an implantable body (102, 104, 106, 372, 374, 376, 402, 600, 802) shaped to abut against a lateral mass of a cervical vertebra comprising: a lateral end (426, 818), a medial end (424, 816), an inwardly facing surface (220, 420) and an outwardly facing surface, the inwardly facing surface (220, 420, 812) having a bone-abutting portion disposed proximate the medial end (424, 816) configured to abut against a lamina when the body (102, 104, 106, 372, 374, 376, 402, 600, 802) is implanted along a vertebra; a lateral bone outrigger (224, 452, 604, 704) extending from the inwardly facing surface (220, 420, 812) adjacent the lateral end (426, 818), the lateral bone outrigger (224, 452, 604, 704) having a bone-abutting surface along a medial portion disposed to abut against a lateral mass of the vertebra when the body (102, 104, 106, 372, 374, 376, 402, 600, 802) is implanted along a vertebra, the lateral bone outrigger (224, 452, 604, 704) having a first height; a penetrating feature extending from the inwardly facing surface (220, 420, 812) between the bone-engaging portion of the inwardly facing surface (220, 420) and the lateral bone outrigger (224, 452, 604, 704), the penetrating feature having a second height less than the first height; a fastener bore (430, 706, 756) extending through the body (102, 104, 106, 372, 374, 376, 402, 600, 802) from the inwardly facing surface (220, 420, 812) to the outwardly facing surface, the fastener bore (430, 706, 756) being angled toward the lateral bone outrigger (224, 452, 604, 704); a rod receiving portion sized to receive a fixation rod; and an opening formed on the outwardly facing surface and being configured to receive and engage the rod receiving portion so as to pivotably attach the rod receiving portion to the body (102, 104, 106, 372, 374, 376, 402, 600, 802). a lateral end (426, 818), a medial end (424, 816), an inwardly facing surface (220, 420) and an outwardly facing surface, the inwardly facing surface (220, 420, 812) having a bone-abutting portion disposed proximate the medial end (424, 816) configured to abut against a lamina when the body (102, 104, 106, 372, 374, 376, 402, 600, 802) is implanted along a vertebra; a lateral bone outrigger (224, 452, 604, 704) extending from the inwardly facing surface (220, 420, 812) adjacent the lateral end (426, 818), the lateral bone outrigger (224, 452, 604, 704) having a bone-abutting surface along a medial portion disposed to abut against a lateral mass of the vertebra when the body (102, 104, 106, 372, 374, 376, 402, 600, 802) is implanted along a vertebra, the lateral bone outrigger (224, 452, 604, 704) having a first height; a penetrating feature extending from the inwardly facing surface (220, 420, 812) between the bone-engaging portion of the inwardly facing surface (220, 420) and the lateral bone outrigger (224, 452, 604, 704), the penetrating feature having a second height less than the first height; a fastener bore (430, 706, 756) extending through the body (102, 104, 106, 372, 374, 376, 402, 600, 802) from the inwardly facing surface (220, 420, 812) to the outwardly facing surface, the fastener bore (430, 706, 756) being angled toward the lateral bone outrigger (224, 452, 604, 704); a rod receiving portion sized to receive a fixation rod; and an opening formed on the outwardly facing surface and being configured to receive and engage the rod receiving portion so as to pivotably attach the rod receiving portion to the body (102, 104, 106, 372, 374, 376, 402, 600, 802).