Terms of Use

Terms of Use Last updated: November 5, 2026 About these terms Introduction to Clinical Prosthetics is operated by Alessia Initiative LLC. These Terms of Use govern your use of clinicalprosthetics.com, your account, and the digital textbook. By using the site or purchasing access, you agree to these Terms. Eligibility You must be at least 18 years old and legally able to enter into these Terms where you live to create an account or purchase access. Educational purpose The Textbook is provided for education and reference only. Using it does not create a physician–patient or other professional relationship with us or the author. It is not medical advice, patient-specific guidance, a substitute for independent clinical judgment, or a replacement for care from a qualified professional. Clinical evidence, device technology, and standards of care change. You are responsible for evaluating the material in light of current evidence, applicable standards, manufacturer instructions, and each patient's circumstances. If you are a patient or caregiver, decisions about evaluation, components, fitting, and treatment should be made with your physician and prosthetist. Discussion of HCPCS codes, functional classification levels, coverage, documentation, or reimbursement is general and educational, not billing, coding, legal, or regulatory advice. Confirm current requirements with the relevant payer and qualified advisors. Report suspected textbook errors to support@clinicalprosthetics.com; we review reports and may correct material errors in future updates. Patient-care responsibility If you use the Textbook in clinical practice, you are personally responsible for your independent professional judgment, patient assessment, and decisions about care. Before applying information from the Textbook to a patient, you must assess its suitability for that patient and, as the clinical decision warrants, verify information relevant to that decision against current authoritative sources. These may include clinical guidelines, device labeling, and manufacturer instructions, where available and applicable. You must act within your qualifications, scope of practice, and applicable law. The Textbook is an educational reference. It does not provide patient-specific advice or replace independent clinical judgment. It should not be used as the sole basis for a patient-care decision. You must not falsely represent or imply that Alessia Initiative LLC or an author has reviewed, approved, or endorsed a specific patient's care. Nothing in this section transfers to you responsibility that legally rests with us or an author for errors or omissions in the Textbook, negligence, or misconduct. Our liability is addressed in the Our liability section. Accounts Textbook access is tied to your account and email address. Keep your login codes private. An individual account is for one person and may not be transferred or shared. Take reasonable steps to secure the email account used to sign in. You are personally responsible for your own use and access you knowingly authorize. Notify support@clinicalprosthetics.com promptly if you suspect unauthorized access and reasonably cooperate with steps to secure your account. You are not responsible merely because an unauthorized person accessed your account. Nothing here limits our responsibilities or your rights under applicable law. Purchases and access Access is sold as a one-time purchase, not a subscription, and does not renew automatically. Access begins after Stripe confirms the purchase and it is applied to your account. Your purchase includes continuing access to the Textbook and all future updates and editions without a recurring fee, subject to the continued operation of the product and your compliance with these Terms. Purchases are sold through Link, Stripe's merchant-of-record service, and are subject to its applicable purchase terms. The seller identified at checkout handles the payment and applicable transaction taxes. Your purchase is for the Textbook provided by Alessia Initiative LLC. Payment receipts are sent by Link, and your payment statement may show “LINK.COM*” followed by the statement label associated with our business, rather than the Textbook's full title. We may change prices for future purchases without advance notice. Price changes do not change the amount paid for a completed purchase or remove access and future updates included with that purchase. Purchase review and refusal. We may review or decline a request to purchase Textbook access where we reasonably suspect fraud, abuse of the purchase, refund or dispute process, circumvention of an existing access restriction, or a material violation of these Terms, or where the transaction would breach applicable legal or payment-provider requirements. This may include reviewing a proposed repurchase following a refund or payment reversal. A previous refund or the good-faith exercise of cancellation or dispute rights does not, by itself, establish abuse. This provision does not authorize cancellation of otherwise valid existing access or limit rights that cannot lawfully be excluded. All sales are final after digital access is provided, except where applicable law or the purchase terms presented at checkout provide a right to cancel or obtain a refund. Please contact us if you experience an access failure or believe you were charged more than once. Personal-use license Your purchase gives you a limited, personal, non-exclusive, non-transferable license to access and use the Textbook. It does not transfer ownership of the Textbook or its content. The Textbook is provided for online access. You may print individual pages for your own personal study and reference. We provide personalized chapter PDFs to enable permitted personal printing. You may print chapters for your own study and reference, but your license does not permit you to save or retain them as PDFs or other offline digital copies. You may not distribute printed or digital copies to others, including friends, classes, or residency programs. Content and printed material may include identifying watermarks containing your name and email address. An individual purchase does not include classroom, residency-program, institutional, group, or shared use. Your license is for your individual study and reference at any stage of your career, including at a hospital, university, or other workplace. It does not permit shared accounts, group access, or reproduction or distribution of the Textbook as teaching or residency-program materials. Your license may be suspended or terminated only on the grounds described in these Terms, subject to applicable law. Prohibited uses You may not share your account; redistribute, sell, publish, or commercially exploit the Textbook; systematically copy, download, scrape, or capture its content; remove copyright notices or watermarks; bypass access controls; interfere with site security; or use the site or Textbook unlawfully. The copying restrictions do not prohibit personal printing expressly permitted by the Personal-use license section. You may not use the Textbook or its content to train, fine-tune, evaluate, or benchmark an artificial-intelligence model or system. You may use limited excerpts with a general-purpose AI assistant for your own personal study or discussion, but you may not submit or reproduce a substantial portion, a complete chapter, or the full Textbook. These restrictions do not limit uses that applicable law expressly permits. Ownership The site and Textbook—including their text, figures, photographs, illustrations, design, and software—are owned by or licensed to Alessia Initiative LLC and are protected by applicable intellectual-property laws. Third-party materials remain the property of their respective owners. Product and company names are trademarks of their respective owners. Mention of a product does not imply that its manufacturer endorses, sponsors, or is affiliated with this Textbook. Omission of a product does not reflect a judgment about it. If you believe material infringes your rights, contact support@clinicalprosthetics.com with a description of the material and your claim. Updates and future editions We may correct, revise, reorganize, or expand the Textbook over time. Future updates and editions are included with your access, and we may announce them using the email address associated with your account. We may correct typographical errors, inaccuracies, and omissions in website or Textbook information. An update date indicates a revision; it does not mean that every statement, chapter, or reference has been reviewed or updated on that date. Unless expressly stated otherwise, we do not promise updates on a particular schedule. This does not limit correction or other obligations imposed by applicable law or our express commitments. Service discontinuation Alessia Initiative LLC reserves the right to permanently close the textbook website and discontinue hosted Textbook access. We do not promise to operate the service indefinitely. This right concerns a genuine permanent closure of the Textbook service, not arbitrary cancellation of an individual purchaser's access while the service continues. We will make reasonable efforts to notify purchasers by email in advance, but do not guarantee a minimum advance-notice period or that advance notice will always be possible. If advance notice is not possible, we will make reasonable efforts to notify purchasers as soon as reasonably practicable. Nothing in this section excludes notice or other remedies required by applicable law. Suspension and revocation If a payment for Textbook access is disputed, Alessia Initiative LLC may temporarily suspend the access associated with that payment while the dispute is reviewed. We assess each case individually, taking account of the available information and whether a valid payment otherwise supports access. We will notify you of any suspension and review it promptly. A suspension does not restrict your right to dispute a charge or exercise other rights under applicable law. After the dispute is resolved, if payment is retained or restored, we will restore any access suspended solely because of that dispute. If the purchase is cancelled and refunded in full, or its payment is finally reversed in full, access associated with that purchase will end unless another valid entitlement supports continued access. A price reduction required by applicable law does not, by itself, end access. These provisions do not limit rights or remedies required by applicable law. We may temporarily suspend access while we review credible suspected misuse, fraud, account sharing, systematic copying, unauthorized redistribution, or attempts to bypass access controls. We may permanently revoke access after making a documented, good-faith determination that a material violation of these Terms occurred. Revocation for misuse does not itself create a right to a refund or remove rights under applicable law or the purchase terms presented at checkout. When reasonably practicable, we will notify you of the revocation and the reason, and provide a way to contact support. We may act immediately when needed to protect account security, payment integrity, the service, or protected content. Third-party services and links We use third-party services, including Stripe for payment processing, and may link to other websites or resources. Those services and sites are governed by their own terms and policies. Availability and content limitations The site and Textbook are provided on an “as available” basis. We do not promise that access will always be uninterrupted, error-free, or current. We do not guarantee that the site, Textbook, or reader features will always be available, operate without delay, or be free from technical errors. Temporary interruptions may occur because of maintenance, security measures, technical problems, or service-provider outages. For temporary service interruptions, we will make reasonable efforts to restore access promptly. Clinical evidence, device technology, and professional guidance change. The Textbook may contain errors or omissions and may not reflect every recent development. It is not an exhaustive source for every clinical situation, and we do not guarantee any particular clinical, educational, or examination outcome. These limitations do not reduce our commitments in these Terms or in our product information shown before purchase, including those concerning purchased access and included future updates and editions. Nothing in this section excludes or limits rights or remedies that applicable law does not allow us to exclude or limit. These may include rights concerning the quality of digital content, its suitability for a particular purpose, whether it matches its description, and whether we have the legal right to supply it. Our liability To the fullest extent permitted by applicable law, Alessia Initiative LLC and the Textbook's authors will not be liable for indirect, incidental, special, or consequential losses arising from use of the site or Textbook. Nothing in these Terms excludes rights or liabilities that cannot legally be excluded or limited. Each Textbook author may enforce the protections in this section, subject to the same exceptions and safeguards. To the fullest extent permitted by applicable law, the total combined liability of Alessia Initiative LLC and the Textbook's authors to you for all claims arising from or relating to the site, the Textbook, or these Terms, whether in contract, tort (including negligence), or otherwise, will not exceed, in the aggregate, the greater of US$100 or the amount you paid for the Textbook access purchase giving rise to those claims. Any monetary cap and exclusion in this section applies only to the extent permitted by applicable law. It does not limit remedies required by applicable law or available under the purchase terms presented at checkout. Nothing in these Terms excludes or limits the liability of Alessia Initiative LLC or the Textbook's authors for death or personal injury caused by that party's negligence; for fraud or fraudulent misrepresentation, intentional misconduct, or gross negligence; or for any other liability that applicable law does not allow Alessia Initiative LLC or the author to exclude or limit. Nothing in this section restricts rights or remedies you have under applicable consumer-protection or data-protection law. Third-party claims and indemnification To the extent permitted by applicable law, you are personally responsible for reimbursing Alessia Initiative LLC and its authors for reasonable losses, damages, and legal costs, including reasonable attorneys’ fees, arising from a third-party claim, but only to the extent caused by: - Your deliberate unlawful interference with the site or its security; - Your knowing unauthorized copying or distribution of protected content through or from the site or Textbook; - Your knowing submission of material that infringes another person's rights; or - Your knowing false representation that Alessia Initiative LLC or an author reviewed, approved, or endorsed particular patient care. This obligation does not arise merely because you made a clinical error or failed to verify clinical information. It does not require you to pay for losses caused by our or an author's negligence, misconduct, or breach of these Terms. We will notify you promptly of a claim for which we seek reimbursement and give you a reasonable opportunity to participate in its defense. Any failure to give prompt notice reduces your obligations to the extent it materially prejudices your ability to respond. We will take reasonable steps to limit covered losses and will not agree to a settlement that requires payment, an admission, or another obligation from you without your written consent. This section does not impose an automatic duty to take over or fund a defense merely because a claim has been made. This section concerns claims made by third parties, not claims you bring against us or your exercise of consumer rights. It does not transfer to you responsibility that legally rests with us or an author or restrict rights that applicable law does not allow us to restrict. Feedback and submissions If you voluntarily send us suggestions, reviews, or other feedback about the site or Textbook, you retain ownership of your material and give Alessia Initiative LLC a non-exclusive, worldwide, royalty-free license to use, reproduce, and adapt it to improve our products and to quote or reproduce it in website and promotional materials. Subject to the safeguards below, this permission does not require payment or further approval of each use. We may shorten or edit feedback for clarity, but will not materially change its meaning or present it in a misleading way. We are not obliged to use or respond to unsolicited feedback. This license does not authorize publication of private account, payment, or support correspondence, confidential information, or identifiable patient information. We will omit identifying details from public quotations unless we have a lawful basis and any permission required to identify you. Accepting these Terms does not replace separate consent where applicable privacy or other law requires it. You are personally responsible for ensuring that you have the rights needed to submit the material. Do not submit identifiable patient information, another person's confidential information, or material that infringes another person's rights. Nothing in this section restricts honest reviews, requires a positive review, or transfers ownership of your feedback to us. Personal information remains subject to our Privacy Policy and applicable law. Agreement and enforcement These Terms, together with any additional terms expressly identified and agreed to for your purchase, form the agreement between you and Alessia Initiative LLC concerning your use of the site and Textbook. They supersede prior discussions and proposals about the same subject, but do not exclude binding pre-purchase descriptions or promises, liability for misrepresentation, or rights that applicable law preserves. The merchant of record's purchase terms separately govern its role in the transaction. This section does not retroactively replace the terms governing an earlier purchase or remove purchased rights. Changes to an existing agreement are subject to the Changes to these terms section. A policy or operating rule does not become an additional contractual obligation merely because we post it on the website. A delay or failure to enforce a provision of these Terms does not, by itself, waive our right to enforce it later. If a provision is found unenforceable, the remaining provisions continue to apply to the extent permitted by law. Nothing in this section changes a rule of interpretation required by applicable law. Changes to these terms We may update these terms as the product or our practices change. The date above shows when they were last revised. We will give existing purchasers reasonable advance notice by email or a prominent account notice of material changes to these Terms, explaining the changes and when they will take effect. We will use email where required by applicable law or where an account notice would not provide adequate advance notice. Minor corrections or clarifications that do not reduce your rights may take effect when published. Where urgent legal or security requirements genuinely require a shorter notice period, we will notify you as soon as reasonably possible. Changes will not apply retroactively or remove previously purchased access, included future updates and editions, or agreed personal-use rights. All future updates and editions we release remain included with your purchase. This does not require us to produce new updates or editions indefinitely. We will obtain your agreement to changes where required by applicable law. Notice alone does not replace any required agreement. The revision date and applicable effective date will be shown with the updated Terms. Governing law These Terms are governed by the laws of the State of Tennessee, without regard to its conflict-of-law principles, except where mandatory consumer law provides otherwise. This does not deprive you of mandatory consumer protections that apply under the law of your country of residence. Contact and concerns If you have a concern about your purchase, access, or these Terms, please email support@clinicalprosthetics.com or visit our Contact us (https://clinicalprosthetics.com/contact/) page. We will make reasonable efforts to resolve it with you. Contacting us first is encouraged, but is not required before disputing a payment or exercising your legal rights, and does not extend any applicable deadlines.