{"id":13512,"date":"2021-06-22T22:46:08","date_gmt":"2021-06-22T22:46:08","guid":{"rendered":"https:\/\/2025divi.cortho.org\/?page_id=13512"},"modified":"2025-10-31T02:21:14","modified_gmt":"2025-10-31T02:21:14","slug":"transient-osteoporosis-of-the-hip","status":"publish","type":"page","link":"https:\/\/2025divi.cortho.org\/?page_id=13512","title":{"rendered":"Transient Osteoporosis of the Hip"},"content":{"rendered":"<p>[et_pb_section bb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; background_color=&#8221;#004279&#8243; global_colors_info=&#8221;{}&#8221; next_background_color=&#8221;#ffffff&#8221;][et_pb_row module_class=&#8221; et_pb_row_fullwidth&#8221; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;89%&#8221; width_tablet=&#8221;80%&#8221; width_last_edited=&#8221;on|desktop&#8221; max_width=&#8221;89%&#8221; max_width_tablet=&#8221;80%&#8221; max_width_last_edited=&#8221;on|desktop&#8221; make_fullwidth=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Change Heading Here&#8221; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_layout=&#8221;dark&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1 style=\"text-align: center\">Transient Osteoporosis of the Hip<\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; admin_label=&#8221;Content Section&#8221; _builder_version=&#8221;4.24.2&#8243; global_colors_info=&#8221;{}&#8221; prev_background_color=&#8221;#004279&#8243;][et_pb_row admin_label=&#8221;Slide text box into the top of this row&#8221; column_structure=&#8221;3_4,1_4&#8243; _builder_version=&#8221;4.24.2&#8243; 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quote_text_shadow_blur_strength=&#8221;quote_text_shadow_style,%91object Object%93&#8243; header_text_shadow_horizontal_length=&#8221;header_text_shadow_style,%91object Object%93&#8243; header_text_shadow_vertical_length=&#8221;header_text_shadow_style,%91object Object%93&#8243; header_text_shadow_blur_strength=&#8221;header_text_shadow_style,%91object Object%93&#8243; header_2_text_shadow_horizontal_length=&#8221;header_2_text_shadow_style,%91object Object%93&#8243; header_2_text_shadow_vertical_length=&#8221;header_2_text_shadow_style,%91object Object%93&#8243; header_2_text_shadow_blur_strength=&#8221;header_2_text_shadow_style,%91object Object%93&#8243; header_3_text_shadow_horizontal_length=&#8221;header_3_text_shadow_style,%91object Object%93&#8243; header_3_text_shadow_vertical_length=&#8221;header_3_text_shadow_style,%91object Object%93&#8243; header_3_text_shadow_blur_strength=&#8221;header_3_text_shadow_style,%91object Object%93&#8243; header_4_text_shadow_horizontal_length=&#8221;header_4_text_shadow_style,%91object Object%93&#8243; header_4_text_shadow_vertical_length=&#8221;header_4_text_shadow_style,%91object Object%93&#8243; header_4_text_shadow_blur_strength=&#8221;header_4_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_horizontal_length=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_vertical_length=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_5_text_shadow_blur_strength=&#8221;header_5_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_horizontal_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_vertical_length=&#8221;header_6_text_shadow_style,%91object Object%93&#8243; header_6_text_shadow_blur_strength=&#8221;header_6_text_shadow_style,%91object Object%93&#8243;]<\/p>\n<p data-start=\"39\" data-end=\"415\">Transient osteoporosis of the hip (TOH) is a temporary condition in which there is a sudden loss of bone density in the head of the femur (thigh bone), resulting in hip pain and difficulty moving. Unlike age-related osteoporosis or avascular necrosis, which cause long-term bone damage, transient osteoporosis typically resolves within 12 months without surgical intervention.<\/p>\n<h3 data-start=\"417\" data-end=\"853\">How Common It Is and Who Gets It? (Epidemiology)<\/h3>\n<p data-start=\"417\" data-end=\"853\">Transient osteoporosis of the hip is rare and occurs most commonly in middle-aged men and pregnant women, particularly in the last trimester of pregnancy. It is more likely to affect individuals who have experienced significant changes in bone density or blood flow to the femur. The condition can affect athletes or active individuals but is not limited to any specific age group.<\/p>\n<div id=\"attachment_13514\" style=\"width: 305px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13514\" class=\"wp-image-13514\" title=\"X-ray showing normal anatomy of the hip joint.\" src=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip.jpg\" alt=\"X-ray showing normal anatomy of the hip joint.\" width=\"295\" height=\"500\" \/><p id=\"caption-attachment-13514\" class=\"wp-caption-text\">X-ray showing normal anatomy of the hip joint.<\/p><\/div>\n<h3 data-start=\"855\" data-end=\"1445\">Why It Happens \u2013 Causes (Etiology and Pathophysiology)<\/h3>\n<p data-start=\"855\" data-end=\"1445\">The exact cause of transient osteoporosis is not fully understood, but it is believed to result from temporary disruption of the blood supply to the femoral head. This disruption can cause swelling and reduced blood flow, leading to a loss of bone density. Over time, the density of the femoral head decreases, resulting in osteolysis (bone breakdown). In pregnant women, hormonal changes may also play a role. The condition is typically self-limiting, meaning the bone will naturally recover over time, usually within 12 months.<\/p>\n<h3 data-start=\"1447\" data-end=\"1909\">How the Body Part Normally Works? (Relevant Anatomy)<\/h3>\n<p data-start=\"1447\" data-end=\"1909\">The hip joint is a ball-and-socket joint where the femoral head (ball) fits into the acetabulum (socket) of the pelvis. The joint is stabilized by a capsule of ligaments and muscles, and the surfaces are lined with cartilage that allows smooth movement. In transient osteoporosis, the femoral head loses its density and becomes more prone to pain and injury, especially during weight-bearing activities.<\/p>\n<h3 data-start=\"1911\" data-end=\"2398\">What You Might Feel \u2013 Symptoms (Clinical Presentation)<\/h3>\n<p data-start=\"1911\" data-end=\"2398\">The primary symptom of transient osteoporosis of the hip is pain in the groin, buttock, or side of the hip. The pain worsens with weight-bearing activities such as walking, climbing stairs, or standing for long periods. As the bone weakens, patients may develop a limp, avoiding pressure on the affected hip. In severe cases, high-impact activities could lead to a hip fracture due to the reduced strength of the femoral head.<\/p>\n<h3 data-start=\"2400\" data-end=\"2991\">How Doctors Find the Problem? (Diagnosis and Imaging)<\/h3>\n<p data-start=\"2400\" data-end=\"2991\">Diagnosis is based on a combination of medical history, physical examination, and imaging studies. During the physical exam, doctors assess the hip\u2019s range of motion and tenderness. Early X-rays may appear normal, but later imaging typically shows decreased bone density in the femoral head. MRI scans can detect bone edema (swelling) and loss of density at an earlier stage. A CT scan provides a detailed view of the hip bones. A nuclear bone scan can also identify changes in bone activity earlier than other methods.<\/p>\n<h3 data-start=\"2993\" data-end=\"3322\">Classification<\/h3>\n<p data-start=\"2993\" data-end=\"3322\">Transient osteoporosis of the hip is generally not classified into subtypes but is recognized by the sudden, localized loss of bone density in the femoral head. It differs from other conditions like avascular necrosis (AVN), which involves progressive bone death and often requires more aggressive treatment.<\/p>\n<h3 data-start=\"3324\" data-end=\"3793\">Other Problems That Can Feel Similar (Differential Diagnosis)<\/h3>\n<p data-start=\"3324\" data-end=\"3793\">Transient osteoporosis can be mistaken for generalized osteoporosis, which affects the bones throughout the body, particularly in postmenopausal women. It may also be confused with avascular necrosis (AVN), a condition where the bone dies due to a lack of blood supply. Unlike transient osteoporosis, AVN typically causes long-term damage to both hips and often requires surgical intervention.<\/p>\n<div id=\"attachment_13513\" style=\"width: 362px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13513\" class=\"wp-image-13513 size-full\" title=\"X-ray showing advanced AVN changes in the Hip.\" src=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip-2.jpg\" alt=\"X-ray showing advanced AVN changes in the Hip.\" width=\"352\" height=\"499\" srcset=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip-2.jpg 352w, https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip-2-212x300.jpg 212w\" sizes=\"(max-width: 352px) 100vw, 352px\" \/><p id=\"caption-attachment-13513\" class=\"wp-caption-text\">X-ray showing advanced AVN changes in the Hip.<\/p><\/div>\n<h3 data-start=\"3795\" data-end=\"4000\">Treatment Options<\/h3>\n<p data-start=\"3795\" data-end=\"4000\"><strong data-start=\"3821\" data-end=\"3842\">Non-Surgical Care<\/strong> \u2013 Most cases of transient osteoporosis resolve with nonsurgical management, which focuses on reducing pain and preventing further strain on the affected hip:<\/p>\n<ul data-start=\"4003\" data-end=\"4523\">\n<li data-start=\"4003\" data-end=\"4105\">\n<p data-start=\"4005\" data-end=\"4105\"><strong data-start=\"4005\" data-end=\"4024\">Pain management<\/strong> with nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen.<\/p>\n<\/li>\n<li data-start=\"4108\" data-end=\"4190\">\n<p data-start=\"4110\" data-end=\"4190\"><strong data-start=\"4110\" data-end=\"4136\">Partial weight-bearing<\/strong> or using a cane to offload pressure from the joint.<\/p>\n<\/li>\n<li data-start=\"4193\" data-end=\"4523\">\n<p data-start=\"4195\" data-end=\"4523\"><strong data-start=\"4195\" data-end=\"4215\">Physical therapy<\/strong> to maintain muscle strength and flexibility while avoiding strain on the hip.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4195\" data-end=\"4523\"><strong data-start=\"4298\" data-end=\"4315\">Surgical Care<\/strong> \u2013 Surgery is rarely needed for transient osteoporosis, as the condition generally resolves on its own. However, in severe cases or when bone fractures occur, surgery may be considered to stabilize the joint.<\/p>\n<h3 data-start=\"4525\" data-end=\"4933\">Recovery and What to Expect After Treatment<\/h3>\n<p data-start=\"4525\" data-end=\"4933\">Patients typically recover fully from transient osteoporosis within one to one and a half years. During recovery, pain usually subsides as the bone density returns to normal. The use of a cane or crutches during the healing period helps reduce strain on the affected hip. Most patients experience complete resolution of symptoms without long-term disability.<\/p>\n<h3 data-start=\"4935\" data-end=\"5330\">Possible Risks or Side Effects (Complications)<\/h3>\n<p data-start=\"4935\" data-end=\"5330\">The main risk associated with transient osteoporosis is a potential fracture if the femoral head becomes too weak. This can occur if high-impact activities are performed before the bone has fully recovered. Otherwise, the condition is generally self-limiting, and there are few long-term complications once the bone density returns to normal.<\/p>\n<h3 data-start=\"5332\" data-end=\"5616\">Long-Term Outlook (Prognosis)<\/h3>\n<p data-start=\"5332\" data-end=\"5616\">The long-term outlook for patients with transient osteoporosis of the hip is excellent. Most individuals recover fully, with no lasting joint deformities or chronic pain. Once the bone density is restored, the hip usually regains normal function.<\/p>\n<h3 data-start=\"5618\" data-end=\"5780\">Out-of-Pocket Costs<\/h3>\n<article class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" tabindex=\"-1\" data-turn-id=\"81e0e0ef-9a94-4d7a-a569-6fb8243e4aad\" data-testid=\"conversation-turn-326\" data-scroll-anchor=\"true\" data-turn=\"assistant\">\n<p data-start=\"75\" data-end=\"89\"><strong>Medicare<\/strong><\/p>\n<p data-start=\"178\" data-end=\"230\">CPT Code 20610 \u2013 Joint Injection (Hip): $15.12<\/p>\n<p data-start=\"233\" data-end=\"356\">CPT Code 96372 \u2013 Therapeutic Injection (Intramuscular or Subcutaneous, e.g., Bisphosphonate or Corticosteroid): $3.23<\/p>\n<p data-start=\"359\" data-end=\"453\">CPT Code 77080 \u2013 Bone Density Study (DXA of Axial Skeleton \u2013 Hips, Pelvis, Spine): $9.07<\/p>\n<p data-start=\"455\" data-end=\"949\">Medicare Part B typically covers 80% of the approved cost for these diagnostic and therapeutic services once your annual deductible has been met, leaving you responsible for the remaining 20%. Supplemental Insurance plans such as Medigap, AARP, or Blue Cross Blue Shield usually cover that remaining 20%, minimizing or eliminating out-of-pocket expenses for Medicare-approved procedures. These plans coordinate with Medicare to close the coverage gap and reduce patient costs.<\/p>\n<p data-start=\"951\" data-end=\"1288\">If you have Secondary Insurance, such as TRICARE, an Employer-Based Plan, or Veterans Health Administration coverage, it serves as a secondary payer. These plans typically cover any remaining coinsurance or small deductibles, which generally range between $100 and $300, depending on your plan and provider network.<\/p>\n<p data-start=\"1290\" data-end=\"1317\"><strong>Workers\u2019 Compensation<\/strong><\/p>\n<p data-start=\"1318\" data-end=\"1675\">If your transient osteoporosis of the hip occurred due to a work-related injury or repetitive motion strain, Workers\u2019 Compensation will cover all related medical expenses, including imaging, injections, and rehabilitation. You will not have any out-of-pocket expenses, as the employer\u2019s insurance carrier pays directly for all approved treatments.<\/p>\n<p data-start=\"1677\" data-end=\"1701\"><strong>No-Fault Insurance<\/strong><\/p>\n<p data-start=\"1702\" data-end=\"2046\">If your hip pain or osteoporosis-related symptoms resulted from an automobile accident, No-Fault Insurance will typically cover the full cost of diagnostic testing and treatment, including joint injections or bone density studies. The only potential out-of-pocket cost may be a small deductible or co-payment depending on your policy.<\/p>\n<p data-start=\"2048\" data-end=\"2061\">Example<\/p>\n<p data-start=\"2062\" data-end=\"2475\" data-is-last-node=\"\" data-is-only-node=\"\">Patricia Nguyen was diagnosed with transient osteoporosis of the hip and received a hip joint injection (CPT 20610) and a bone density scan (CPT 77080). Her total estimated Medicare out-of-pocket cost was $24.19. Because Patricia had supplemental insurance through AARP Medigap, her remaining balance was fully covered, leaving her with no out-of-pocket expenses for her treatment.<\/p>\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] thread-sm:[--thread-content-margin:--spacing(6)] thread-lg:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] thread-lg:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\">\n<div class=\"z-0 flex min-h-[46px] justify-start\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/article>\n<h3 data-start=\"5782\" data-end=\"6003\">Frequently Asked Questions (FAQ)<\/h3>\n<p data-start=\"5782\" data-end=\"6003\"><strong>Q. Can transient osteoporosis of the hip cause permanent damage?<\/strong><br data-start=\"5884\" data-end=\"5887\" \/>A. No, transient osteoporosis is typically a self-limiting condition, and the bone usually heals fully within a year.<\/p>\n<p data-start=\"6005\" data-end=\"6184\"><strong>Q. What are the main symptoms?<\/strong><br data-start=\"6034\" data-end=\"6037\" \/>A. Pain in the groin, buttock, or side of the hip, especially with weight-bearing activities. The pain may worsen over time and can lead to limping.<\/p>\n<p data-start=\"6186\" data-end=\"6448\"><strong>Q. How is transient osteoporosis different from avascular necrosis?<\/strong><br data-start=\"6252\" data-end=\"6255\" \/>A. Avascular necrosis causes bone death due to disrupted blood flow, typically leading to permanent joint damage. In contrast, transient osteoporosis is a temporary condition with a full recovery.<\/p>\n<h3 data-start=\"6450\" data-end=\"6831\">Summary and Takeaway<\/h3>\n<p data-start=\"6450\" data-end=\"6831\">Transient osteoporosis of the hip is a rare condition that causes temporary bone density loss in the femoral head, leading to hip pain and limping. The condition is usually self-limiting and resolves within 12 months with nonsurgical treatment such as pain management and physical therapy. Full recovery is expected, and long-term complications are rare.<\/p>\n<h3 data-start=\"6833\" data-end=\"7224\">Clinical Insight &amp; Recent Findings<\/h3>\n<p data-start=\"905\" data-end=\"1709\">Transient osteoporosis of the hip joint is a rare but temporary condition that causes hip pain and a reduction in bone density in the femoral head. It is typically self-limiting, with most patients experiencing full recovery within 12 months.<\/p>\n<p data-start=\"905\" data-end=\"1709\">A recent case study underscores the difficulty of diagnosing ITOH, as its symptoms often resemble those of more serious conditions like avascular necrosis. The patient in the study underwent a thorough diagnostic process, including MRI, which revealed characteristic bone marrow edema. After a conservative treatment regimen, including partial weight-bearing and pain relief, the patient fully recovered.<\/p>\n<p data-start=\"905\" data-end=\"1709\">This case highlights the importance of considering ITOH in patients with unexplained hip pain, especially when other serious conditions have been ruled out. (&#8220;<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/39822407\/\" target=\"_blank\" rel=\"noopener\"><em>Study on idiopathic transient osteoporosis of the hip \u2013 see PubMed.&#8221;<\/em><\/a>)<\/p>\n<h3 data-start=\"7226\" data-end=\"7547\">Who Performs This Treatment? (Specialists and Team Involved)<\/h3>\n<p data-start=\"7226\" data-end=\"7547\"><br data-start=\"7290\" data-end=\"7293\" \/>Orthopedic specialists, particularly those focused on hip conditions, manage transient osteoporosis of the hip. Physical therapists assist with rehabilitation to improve mobility and strength. Radiologists provide essential imaging studies for diagnosis.<\/p>\n<h3 data-start=\"7549\" data-end=\"7751\">When to See a Specialist?<\/h3>\n<p data-start=\"7549\" data-end=\"7751\">If you experience hip pain that doesn\u2019t improve with rest, or if pain worsens during weight-bearing activities, see an orthopedic specialist for evaluation and diagnosis.<\/p>\n<h3 data-start=\"7753\" data-end=\"7934\">When to Go to the Emergency Room?<\/h3>\n<p data-start=\"7753\" data-end=\"7934\">Go to the emergency room if you experience sudden severe pain, difficulty walking, or if your hip becomes swollen or bruised after an injury.<\/p>\n<h3 data-start=\"7936\" data-end=\"8235\">What Recovery Really Looks Like?<\/h3>\n<p data-start=\"7936\" data-end=\"8235\">Recovery is typically gradual, with pain subsiding over months as the bone heals. Patients may use a cane to reduce pressure on the hip during recovery. Most people can return to normal activities after one to one and a half years without any long-term issues.<\/p>\n<h3 data-start=\"8237\" data-end=\"8452\">What Happens If You Ignore It?<\/h3>\n<p data-start=\"8237\" data-end=\"8452\">Ignoring transient osteoporosis may lead to fractures if the bone becomes too weak, especially during high-impact activities. Early intervention and monitoring prevent this risk.<\/p>\n<h3 data-start=\"8454\" data-end=\"8731\">How to Prevent It?<\/h3>\n<p data-start=\"8454\" data-end=\"8731\">Maintain bone health through proper nutrition, including calcium and vitamin D, and regular weight-bearing exercises. Avoid high-impact activities if you have hip pain, and follow your doctor\u2019s recommendations for activity modification during recovery.<\/p>\n<h3 data-start=\"8733\" data-end=\"8954\">Nutrition and Bone or Joint Health<\/h3>\n<p data-start=\"8733\" data-end=\"8954\">A diet rich in calcium, vitamin D, and protein supports bone strength and healing. Adequate hydration and a healthy weight also help reduce strain on the hip joint during recovery.<\/p>\n<h3 data-start=\"8956\" data-end=\"9193\">Activity and Lifestyle Modifications<\/h3>\n<p data-start=\"8956\" data-end=\"9193\">Low-impact activities such as swimming or cycling are ideal during recovery. Stretching and strengthening exercises for the hip can improve flexibility and help prevent recurrence of hip issues.<\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;FAQ Headline&#8221; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2 style=\"text-align: center;\">Do you have more questions?\u00a0<\/h2>\n<p>[\/et_pb_text][et_pb_df_faq admin_label=&#8221;FAQ Module &#8211; Change the FAQ Category Here&#8221; filter_by_category_on=&#8221;on&#8221; include_categories=&#8221;5313&#8243; accordion_bg_color_closed=&#8221;#1f7714&#8243; accordion_bg_color_open=&#8221;#1f7714&#8243; accordion_icon_color=&#8221;#FFFFFF&#8221; accordion_icon_color_open=&#8221;#FFFFFF&#8221; _builder_version=&#8221;4.24.3&#8243; _module_preset=&#8221;default&#8221; question_text_color=&#8221;#FFFFFF&#8221; answer_text_color=&#8221;#FFFFFF&#8221; global_colors_info=&#8221;{}&#8221; \/][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_sidebar area=&#8221;sidebar-1&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>[\/et_pb_sidebar][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Transient Osteoporosis of the Hip Transient osteoporosis of the hip (TOH) is a temporary condition in which there is a sudden loss of bone density in the head of the femur (thigh bone), resulting in hip pain and difficulty moving. Unlike age-related osteoporosis or avascular necrosis, which cause long-term bone damage, transient osteoporosis typically resolves [&hellip;]<\/p>\n","protected":false},"author":37,"featured_media":13514,"parent":57457,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"Transient Osteoporosis of The Hip joint Pain | Complete Orthopedics","_seopress_titles_desc":"The transient osteoporosis of the hip joint is the temporary loss of bone density in the head of the femur.","_seopress_robots_index":"","_et_pb_use_builder":"on","_et_pb_old_content":"<p>The transient osteoporosis of the hip joint is the temporary loss of bone density in the head of the femur. The condition is often self-limiting and is different from both age-related osteoporosis and avascular necrosis of the hip joint.<\/p><p>The transient osteoporosis of the hip joint may cause disabling pain in the hip region that may cause the patient to limp. The management is nonsurgical but it is important to rule out other serious bone diseases such as <a href=\"https:\/\/2025divi.cortho.org\/hip\/avascular-necrosis\/\">avascular necrosis<\/a> that may require early surgery.<\/p>[caption id=\"attachment_13514\" align=\"aligncenter\" width=\"295\"]<a href=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip.jpg\"><img class=\"wp-image-13514\" title=\"X-ray showing normal anatomy of the hip joint.\" src=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip.jpg\" alt=\"X-ray showing normal anatomy of the hip joint.\" width=\"295\" height=\"500\" \/><\/a> X-ray showing normal anatomy of the hip joint.[\/caption]<p>The bones in the human body are living tissues that require a constant supply of nutrients and oxygen to maintain function. The bones consist of a bony matrix that is mineralized with calcium and phosphate to provide strength. The bone cells are involved in the constant turnover of the mineralization to maintain the structure and strength of the bone.<\/p><p>The hip joint is formed by the head of the femur that rotates in the socket formed by the acetabulum. The ends of the ball and the socket are covered with a glistening white tissue known as the articular cartilage. The articular cartilage allows the smooth rotation of the joint. The hip joint is unique due to its limited blood supply.<\/p><h4>Transient Osteoporosis of the Hip joint - causes and risks<\/h4><p>The exact cause of transient osteoporosis of the hip joint is unknown but it has been hypothesized to be caused by temporary disruption of the blood supply of the head of the femur. The loss of blood supply may be caused by blockage of the veins of the head of the femur. The veins take the blood away from the head of the femur after the nutrients are extracted from the arteries.<\/p><p>The blockage of the veins may create a back pressure that may lead to swelling in the head of the femur. The swelling may further reduce the blood supply to the head of the femur. The density of the head of the femur reduces leading to specific signs in radiological studies. The reduction in the bone density (osteolysis and osteoporosis) may decline further over the months and slowly recover in about 12 months.<\/p><p>The transient osteoporosis of the hip occurs most often in middle-aged men and pregnant females in the last 3 months of their pregnancy.<\/p><h4>Symptoms<\/h4><p>Patients with transient osteoporosis of the hip joint often complain of <a href=\"https:\/\/2025divi.cortho.org\/hip\/hip-pain\/\">hip pain<\/a> located over the groin region. The pain may be located on the side of the hip or even in the buttock besides the groin. Patients report worsening of the pain on weight-bearing activities such as walking, navigating stairs, or standing.<\/p><p>The hip pain may significantly worsen to the point where the patient may start limping. The limping occurs as the patient tries to spend less time on the painful hip while walking. The patient may also have painful movements, especially when doing those movements by themself (active movements). As the head of the femur gets considerably weaker, any high-impact activity may potentially lead to a fracture of the bone.<\/p><h4>Diagnosis<\/h4><p>The diagnosis of transient osteoporosis of the hip joint is a diagnosis of exclusion after all other possible diseases have been ruled out. The physician performs an extensive physical examination to look for tenderness (points of pain) and the hip range of motion. The physician may request radiological studies in the form of an X-ray.<\/p><p>The initial X-rays of the hip joint may be normal and only later X-rays may show a decrease in density of the hip joint. The joint space is always maintained (normal) in transient osteoporosis of the hip joint.<\/p><p>The physician may also order a CT scan that shows a higher resolution of the bony structures in the hip joint. MRI may show the early changes associated with transient osteoporosis of the hip. The MRI scan of the hip joint may show bone edema and the loss of density. A nuclear bone scan similarly is able to pick up the changes associated with transient osteoporosis earlier as compared to other modalities.<\/p><p>The radiological studies may be withheld in a pregnant female although an MRI is considered safe in pregnancy. However, any imaging study in a pregnant female is only done after consultation with their obstetrician and their primary care provider.<\/p><h4>Management<\/h4><p>The treatment of transient osteoporosis of the hip joint is nonsurgical. The management involves the use of pain medication such as nonsteroidal anti-inflammatory drugs like ibuprofen or naproxen, partial weight-bearing, and avoidance of any high impact activity. The patients may be advised to use a cane to offload the joint. Physical therapy is aimed to maintain the strength and flexibility of the muscles around the hip while not bearing weight.<\/p><h4>Prognosis and Differential Diagnosis<\/h4><p>The patients report a complete resolution from their symptoms in one to one and a half years. There is no residual deformity of disease that may cause long-term disability.<\/p><p>Transient osteoporosis may be confused with generalized age-related osteoporosis that affects all the bones of the body and not just the head of the femur. The patients suffering from osteoporosis are usually post-menopausal females or patients with metabolic bone disorders.<\/p>[caption id=\"attachment_13513\" align=\"aligncenter\" width=\"352\"]<a href=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip-2.jpg\"><img class=\"wp-image-13513 size-full\" title=\"X-ray showing advanced AVN changes in the Hip.\" src=\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Transient-Osteoporosis-of-the-Hip-2.jpg\" alt=\"X-ray showing advanced AVN changes in the Hip.\" width=\"352\" height=\"499\" \/><\/a> X-ray showing advanced AVN changes in the Hip.[\/caption]<p>Transient osteoporosis may also be mistaken with another bone disease called <a href=\"https:\/\/2025divi.cortho.org\/hip\/avascular-necrosis\/\">avascular necrosis (AVN)<\/a>. In AVN of the hip joint, there is bone death of the head of the femur secondary to disruption of the blood supply. The exact cause is unknown in AVN but patients with a history of corticosteroid use or alcohol abuse are more susceptible to having AVN.<\/p><p>Any injury to the hip that may disrupt the blood supply may also cause AVN. Compared to transient osteoporosis, AVN of the hip generally affects both the hip joints. AVN of the hip joint is a progressive disorder that may require early surgical intervention compared to transient osteoporosis that is managed nonsurgically.<\/p>","_et_gb_content_width":"","footnotes":""},"class_list":["post-13512","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/pages\/13512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/users\/37"}],"replies":[{"embeddable":true,"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13512"}],"version-history":[{"count":4,"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/pages\/13512\/revisions"}],"predecessor-version":[{"id":58571,"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/pages\/13512\/revisions\/58571"}],"up":[{"embeddable":true,"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/pages\/57457"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=\/wp\/v2\/media\/13514"}],"wp:attachment":[{"href":"https:\/\/2025divi.cortho.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}