BioConst — Bone Conditions

Research reference only. BioConst updates and corrects content over time, but it cannot replace clinician-guided diagnosis, treatment, medication, or testing decisions.

Bone Conditions

Conditions and variables have one canonical home here. Long research notes stay as deeper reading, not competing maps.

Medical Wiki

Bone conditions

Bone mass and fracture resistance

Conditions where bone strength, density, quality, or falls make low-trauma fracture more likely.

Open wiki entryLow bone mass / osteopeniaBone density is below the young-adult reference range, but the label alone is not a treatment instruction.

BMDT-scoreZ-scoreFRAX

Open wiki entryOsteoporosis and fragility fractureBone loses enough strength that a low-trauma fall or ordinary load can cause a fracture.

BMDT-scoreFRAXFracture and fall history

Hormone and remodeling disorders

Conditions where bone remodeling speed or hormone signals become the central problem.

Open wiki entryHyperparathyroid bone diseaseExcess parathyroid hormone can push bone turnover and bone loss, but calcium and PTH need clinical context.

PTHSerum calcium25-hydroxyvitamin DBMD

Open wiki entryPaget disease of boneFocal remodeling becomes excessive and disorganized, producing enlarged but structurally abnormal bone.

Alkaline phosphataseX-rayBone scanpain

Mineralization and kidney-mineral control

Conditions where mineral deposition or kidney-mineral hormone control changes the meaning of bone data.

Open wiki entryCKD-mineral and bone disorder / renal osteodystrophyKidney disease can change phosphate, calcium, PTH, vitamin D metabolism, bone turnover, and calcification context.

eGFR / kidney functionPhosphateSerum calciumPTH25-hydroxyvitamin D

Open wiki entryOsteomalacia and ricketsBone matrix is present, but mineralization is defective; in children this can disturb growing bones.

25-hydroxyvitamin DSerum calciumPhosphateAlkaline phosphatase

Structural, systemic & secondary

Inherited, developmental, and structural fragility

Conditions where collagen, osteoclast function, mosaic lesions, or skeletal development alter strength.

Open wiki entryFibrous dysplasia / skeletal mosaicismFocal fibro-osseous lesions can replace normal bone and marrow, creating pain, deformity, or fracture risk.

lesion mappainFracture and fall historyendocrine context

Open wiki entryOsteogenesis imperfecta and heritable fragilityInherited fragility often involves collagen biology; fractures cannot be reduced to calcium intake or BMD alone.

Fracture and fall historygenetic contextBMDmobility

Open wiki entryOsteopetrosis / high-density brittle boneBone can become dense but brittle when resorption fails; high density is not automatically strong bone.

BMDosteoclast functionmarrow contextFracture and fall history

Tumor, marrow, and systemic bone destruction

Bone involvement from cancer or marrow disease, kept separate from everyday bone-fragility concerns.

Open wiki entryBone tumors and metastatic bone diseaseCancer can arise in bone or spread to bone; this belongs in a separate oncology-aware context.

X-raypainfracture riskoncology context

Open wiki entryMyeloma bone diseasePlasma-cell disease in marrow can create osteolytic lesions by increasing breakdown and suppressing formation.

marrow contextosteolytic lesionspainfracture risk

Blood supply, infection, and tissue destruction

Conditions where blood flow failure or infection damages living bone tissue.

Open wiki entryOsteomyelitis / bone infectionInfection reaches bone through blood, nearby tissue, trauma, surgery, or impaired circulation.

CRPESRMRICulturewound context

Open wiki entryOsteonecrosis / avascular necrosisBone tissue dies when blood supply is disrupted; this is a vascular and structural problem.

MRIpaincollapse stageblood supply