Replacement of endoprosthetic implants within a two years follow-up period: a statutory health insurance routine data analysisReport as inadecuate

Replacement of endoprosthetic implants within a two years follow-up period: a statutory health insurance routine data analysis - Download this document for free, or read online. Document in PDF available to download.

BMC Musculoskeletal Disorders

, 13:223

Rehabilitation, physical therapy and occupational health


BackgroundThe statutory health insurance system embodies a large amount of data on the treatments of their members. Depending on joint, prosthesis type, patient activity and comorbidity, knee and hip replacements can last up to 20 years. Based on statutory health insurance data the main object of this analysis was to investigate how high the early revision rate of replacements actually is.

MethodsThe number of replacements in the years 2005 and 2006 has been extracted from the TK database for hip OPS-Code 5-820, n = 20,875, knee OPS 5-822, n = 13,466, upper limbs OPS 5-824, n = 901, and lower limbs OPS 5-826 replacements. This data has then been related to each consecutive operation i. e. change or excision of joint endoprosthesis over a joint-specific observation period of two years.

ResultsIn 3.7% of the cases joint replacements stood for less than 2 years hip 3.5%, knee 3.8%, upper limbs 6.5%, and lower limbs 5.5%. There is a significantly positive correlation between the treatment data of the hospitals and the outcome as to low rates of reoperations at early stages. The main reason for short lifetime 76 - 81% is mechanical failure.

ConclusionThe percentage of joint endoprostheses with significantly short lifetimes has been unexpectedly high. The de facto lifetimes of joint endoprostheses thus often do not match the manufacturers’ information. The authors strongly support the idea of a national endoprosthesis register as such a register could give detailed information on

firstly whether these deficits are due to material defects, osteolysis or dislocation and

secondly which products are mainly affected.

KeywordsEndoprostheses Hip joint Knee joint Routine data analysis Arthroplasty register Electronic supplementary materialThe online version of this article doi:10.1186-1471-2474-13-223 contains supplementary material, which is available to authorized users.

Download fulltext PDF

Author: Roland Linder - Hardy Müller - Brigitte Grenz-Farenholtz - Caroline Wagner - Martin Stockheim - Frank Verheyen


Related documents