PATIENT INFORMATION: Skeletal System Implants (“Endoprosthesis”)


           find here special information on:
hip endoprosthesis, knee endoprosthesis
patient´s checklists for hip / knee endoprosthesis: deutsch english
what to do after treatment of closed fractures of the fingers and metacarpals

WHAT … FOR? (Indications)

Bone implants are used to replace bony structures, e.g. in case of bone fractures and specific diseases. The joints between the bones, e.g. at the hip or knee, can also be replaced by so-called hip or knee endoprostheses in the case of very painful or significant joint changes.

Other reasons may include: limitations in walking and climbing stairs, a misalignment of the legs, an unstable joint or weak muscles, problems walking, kneeling or sitting down, limitations at work, at home and during leisure time, or dependence on support from others.


Knee 49%, Hip 42% (global, 2012) 310.800, hip endoprostheses, U.S.A. (2010) 400.000, joint implants (220.000 hip, 150.000 knee, Germany 2014)


Dependend on technique mobilization is possible after 1 -7 days. Rehabilitation happens after 6-12 weeks dependend on many individual factors.

Diseases that increase the risk of surgery.

short term: Inflammation, thrombosis, hematoma, injury of nerves or vessels, hemorrhagia, metal hypersensitivity, metal toxicity, leg length inequality.
long term: Loosening, dislocation, osteolysis, inflammation, chronic pain, death (<1%).

5% after 1st surgery

Titanium (TiAl6V4 a.o.), CoCrMo-alloys, Polyethylen (Teflon), PMMA

Hip replacement lasts 25 years in around 58% of patients (The Lancet, 2019)
95% more than 10 years
90% 20 years, 95% are satisfied, 2017: failure rate 2,2 – 3,2% (3rd year)(hip, Germany, Dtsch Ärzteblatt 2018)


– Basic
Patient Information (manufacturer/Zimmer)(english)
Endoprotheses: regaining independence and mobility(english)
Endoprothetik – Zwischen Anspruch und Realität(german)

– Prevention
Age-in-Place Home Improvements: A Room-by-Room Guide (Kris Lindahl Real Estate)

– Problems
Hip-Replacement-Recalls (Drugwatch)
Selbsthilfegruppe für schadhafte Hüftprothesen (german)
Der Spiegel: Rückruf von Hüftgelenksprothesen (german)
Kniearthrose (Gonarthrose)

– Science/Future
3D-printed spine

REGISTER (links)
Canadian Joint Replacement Registry (Canada)
Czech National Register of Joint Replacement (NRKN, Czech Republic)Deutschland Endoprothesenregister (german)
Romanian Arthroplasty Register (Romania)
Slovak Arthroplasty Register (Slovakia)
Swedish Hip Arthroplasty Register (swedish)
UK National Joint Registry (UK)
Gelenkersatz: Anwendungsstandards und Register verbessern Qualität (german)
Register und Netzwerke: Zusammenarbeit ist wichtig für den Erfolg (german)

In the register of the registries you can check which ones are available.

You can share your experience here for the community by submitting it for statistical purposes (personal data will remain anonymous)

If your implant is not covered:
The Implant-Register offers registration of implants online (fee) and you can download a printable version for your personal use.


The information and links and whatsoever shown on this page are compiled with care. However, Implant-Register can´t take any responsibility for the information given, nor their content, nor their up-to-date nature, particularly in interlinked pages. You may help us with your contribution, granting us the decision to publish or not. Be careful with conclusions for yourself, in doubt double-check and consider medical solutions are individual and have to be found with an educated medical person.