Limited range of motion in hip
Possible conditions
Legg-Calvé-Perthes Disease: 5 Genes and 6 Biomarkers to Track
When a child is diagnosed with Legg-Calvé-Perthes disease, the first weeks are often defined by confusion. The diagnosis — avascular necrosis of the femoral head — sounds severe, the imaging is alarming, and the treatment path is rarely straightforward.
Hydroxyapatite Deposition Disease — 5 Genes and 7 Biomarkers to Track
Hydroxyapatite deposition disease (HADD) has a way of arriving without warning — a sudden, severe episode of joint pain, imaging that confirms calcific deposits in a tendon, and a clinical visit that ends with anti-inflammatories and a recommendation to wait it out.
Multiple Epiphyseal Dysplasia — 6 Genes And 7 Biomarkers To Track
Living with multiple epiphyseal dysplasia means navigating a condition that most clinicians encounter only a handful of times in a career. You may have spent years with unexplained joint pain, a diagnosis that arrived late, or a medical team that defaults to general osteoarthritis management without fully engaging with the underlying mechanics.
Femoral Anteversion: 5 Genes And 7 Biomarkers To Track
If you or your child has been diagnosed with femoral anteversion — or if you've spent years wondering why your hips look rotated, your knees tend to cave inward, or your gait simply feels off — you've probably encountered advice that ranges from "wait and see" to generic stretching or, in more severe cases, surgery.
Coxa Vara: 6 Genes and 7 Biomarkers to Track
If you have received a coxa vara diagnosis, the first conversation with a clinician likely centered on the structural problem: the abnormal angle of the femoral neck, the limp, the leg length difference, possibly surgical options.
Post-Radiation Arthritis — 5 Genes And 7 Biomarkers To Track
If you have gone through radiation therapy for cancer and now find yourself dealing with joint stiffness, aching, or a steadily shrinking range of motion, you are not imagining things and you are not alone.
Steroid-Induced Osteonecrosis: 6 Genes and 7 Biomarkers To Track
If you or someone you care about is on corticosteroids — or has already been told that osteonecrosis has developed as a result — the information you've received has probably been frustratingly thin. The standard message is to reduce steroid dosage where possible, take calcium and vitamin D, and watch for hip pain.
Dysbaric Osteonecrosis: 7 Biomarkers and 5 Genes to Track
If you dive professionally or have done so for years, you already know that decompression sickness is not the only risk lurking under pressure. Dysbaric osteonecrosis (DON) — a form of avascular necrosis triggered by repeated hyperbaric exposure — develops silently in the bones of the shoulder or hip, often without symptoms until significant structural damage has already occurred.
Aspergillus Arthritis — 4 Genes and 6 Biomarkers To Track
Aspergillus arthritis sits at an unusual crossroads in medicine: it is an infectious disease, an immune disease, and a joint disease all at once. For most people who develop it — typically those on immunosuppressive therapy after an organ transplant, those being treated for blood cancers, or those with rare primary immune deficiencies — the path to diagnosis is rarely smooth.
Phenylketonuria Arthropathy — 5 Genes And 6 Biomarkers To Track
Joint pain and stiffness are not the first things people associate with phenylketonuria. Most conversations about PKU revolve around the diet, phenylalanine levels, and neurological outcomes. But for a meaningful number of people living with PKU, arthropathy — disease affecting the joints and connective tissue — is a real and often unaddressed part of daily life.
Periarticular Heterotopic Ossification: 6 Genes And 6 Biomarkers To Track
Periarticular heterotopic ossification — bone forming in the soft tissue around a joint — is one of those conditions that tends to arrive without much warning. You might notice stiffness after a hip replacement, limited range of motion months after a spinal cord injury, or a strange firmness in tissue that was previously pliable.
Tumoral Calcinosis: 4 Genes and 7 Biomarkers to Track
Tumoral calcinosis occupies a strange corner of medicine: rare enough that most people wait years for an accurate diagnosis, yet specific enough that once you understand the underlying biology, the clinical picture becomes surprisingly clear.
Eosinophilic Fasciitis Genes And Biomarkers: 5 Genes And 7 Biomarkers To Track
Eosinophilic fasciitis is one of those conditions that can leave you feeling like you are fighting in the dark. The diagnosis itself often takes months or years, the list of available treatments is short, and most of what you find online stops at "corticosteroids and wait." If that is where you are, this article is meant to give you something more useful than a shrug.
Ullrich Congenital Muscular Dystrophy Genes Biomarkers - 3 Genes And 6 Biomarkers To Track
Living with Ullrich Congenital Muscular Dystrophy — or supporting someone who does — places you in a specific kind of solitude. UCMD affects fewer than 1 in 1,000,000 people, and the specialists you encounter have often seen only a handful of cases in their careers.
Duchenne Muscular Dystrophy Genes And Biomarkers: 6 Genes And 5 Biomarkers To Track
If you're reading this because a son, a nephew, a student, or a patient has just been diagnosed with Duchenne muscular dystrophy, you've probably already noticed a gap. On one side there's the clinical explanation — "a mutation in the dystrophin gene" — delivered in a ten-minute appointment.
Tricho-Rhino-Phalangeal Syndrome: 2 Genes and 6 Biomarkers to Track
If you or your child has been diagnosed with tricho-rhino-phalangeal syndrome (TRPS), you have probably already noticed a gap: most of what you find online describes what the condition looks like, but very little explains what is actually happening at the molecular level, or what a family can realistically track and act on over time.
Hip Labral Tear - 4 Genes and 6 Biomarkers to Track
Living with a hip labral tear often means navigating a persistent cycle of physical restriction and frustration. The sharp, deep pinch in the groin during a sudden pivot, the aching stiffness that sets in after sitting, and the constant apprehension about certain movements are deeply disruptive.