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Incidence of hip replacement among national health insurance enrollees in Taiwan.

Lai YS, Wei HW, Cheng CK - J Orthop Surg Res (2008)

Bottom Line: There is no national joint replacement registry in the country of Asia and reports of national outcomes of joint replacement in Asia as yet.Both the number of primary partial hip replacements and primary total hip replacements increased steadily between 1996 and 2004.The cumulative survival of primary partial hip replacements and primary total hip replacements in all patients were 93.97% and 79.47% in 9 years follow-up, respectively.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute of Biomedical Engineering, National Yang Ming University, Taipei, Taiwan.

ABSTRACT

Background: There is no national joint replacement registry in the country of Asia and reports of national outcomes of joint replacement in Asia as yet. Therefore, this study was then to report a national data of the number of hip replacements, incidence rate, demographic characteristics of hip replacement patients, and short-time survival rate after hip replacement of Han Chinese in Taiwan.

Methods: We analyzed 105,688 cases of hip replacements (including primary partial hip replacement, primary total hip replacement and revision of hip replacement) from National Health Insurance research database between 1996 and 2004. The survival rate of primary hip replacement was estimated for each disease by the Kaplan-Meier method.

Results: Average annual number of primary partial hip replacement and primary total hip replacement were 4,257 and 6,206 cases, respectively. The most two common diagnosis of primary partial hip replacement were femoral neck fractures (73.6%, 34% men, mean age 76 years) and avascular necrosis (18.0%, 84% men, mean age 48 years). In primary total hip replacements, the most two common diagnosis were avascular necrosis (46.9%, 79% men, mean age 50 years) and osteoarthrosis (41.6%, 43% men, mean age 60 years). Both the number of primary partial hip replacements and primary total hip replacements increased steadily between 1996 and 2004. The cumulative survival of primary partial hip replacements and primary total hip replacements in all patients were 93.97% and 79.47% in 9 years follow-up, respectively.

Conclusion: Avascular necrosis is the main disease in total hip replacement in Taiwan. The epidemiology of hip diseases was different between Han Chinese (in Taiwan) and Caucasian and the number of hip replacements increased substantially in Taiwan between 1996 and 2004.

No MeSH data available.


Related in: MedlinePlus

Distribution of diagnosis by age, there were 94,182 observations in 1996–2004.
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Figure 2: Distribution of diagnosis by age, there were 94,182 observations in 1996–2004.

Mentions: The most ten common diagnosis in primary PHR and THR were femoral neck fractures (FNF), avascular necrosis (AVN), osteoarthrosis (OA), malunion and nonunion of fracture, rheumatoid arthritis, pathologic fracture, ankylosing spondylitis, congenital anteversion of femur, pyogenic arthritis, and congenital dislocation as shown in Table 1. The main indication for primary PHR and THR in Taiwan was FNF, approximately 42.6% of the index operations were performed due to FNF. Patients of FNF aged less than 60 years were only 4.5%, mean age was 76 years, and 35% were men. Avascular necrosis as indication for primary PHR and THR was 29.8%, age less than 60 years were 76.6%, mean age was 49 years, and 81% were men. Osteoarthrosis as indication for primary PHR and THR was 17.4%, age less than 60 years were 41.6%, mean age was 60 years, and 43% were men. The distribution of diagnosis by age was shown in Figure 2.


Incidence of hip replacement among national health insurance enrollees in Taiwan.

Lai YS, Wei HW, Cheng CK - J Orthop Surg Res (2008)

Distribution of diagnosis by age, there were 94,182 observations in 1996–2004.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2553065&req=5

Figure 2: Distribution of diagnosis by age, there were 94,182 observations in 1996–2004.
Mentions: The most ten common diagnosis in primary PHR and THR were femoral neck fractures (FNF), avascular necrosis (AVN), osteoarthrosis (OA), malunion and nonunion of fracture, rheumatoid arthritis, pathologic fracture, ankylosing spondylitis, congenital anteversion of femur, pyogenic arthritis, and congenital dislocation as shown in Table 1. The main indication for primary PHR and THR in Taiwan was FNF, approximately 42.6% of the index operations were performed due to FNF. Patients of FNF aged less than 60 years were only 4.5%, mean age was 76 years, and 35% were men. Avascular necrosis as indication for primary PHR and THR was 29.8%, age less than 60 years were 76.6%, mean age was 49 years, and 81% were men. Osteoarthrosis as indication for primary PHR and THR was 17.4%, age less than 60 years were 41.6%, mean age was 60 years, and 43% were men. The distribution of diagnosis by age was shown in Figure 2.

Bottom Line: There is no national joint replacement registry in the country of Asia and reports of national outcomes of joint replacement in Asia as yet.Both the number of primary partial hip replacements and primary total hip replacements increased steadily between 1996 and 2004.The cumulative survival of primary partial hip replacements and primary total hip replacements in all patients were 93.97% and 79.47% in 9 years follow-up, respectively.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute of Biomedical Engineering, National Yang Ming University, Taipei, Taiwan.

ABSTRACT

Background: There is no national joint replacement registry in the country of Asia and reports of national outcomes of joint replacement in Asia as yet. Therefore, this study was then to report a national data of the number of hip replacements, incidence rate, demographic characteristics of hip replacement patients, and short-time survival rate after hip replacement of Han Chinese in Taiwan.

Methods: We analyzed 105,688 cases of hip replacements (including primary partial hip replacement, primary total hip replacement and revision of hip replacement) from National Health Insurance research database between 1996 and 2004. The survival rate of primary hip replacement was estimated for each disease by the Kaplan-Meier method.

Results: Average annual number of primary partial hip replacement and primary total hip replacement were 4,257 and 6,206 cases, respectively. The most two common diagnosis of primary partial hip replacement were femoral neck fractures (73.6%, 34% men, mean age 76 years) and avascular necrosis (18.0%, 84% men, mean age 48 years). In primary total hip replacements, the most two common diagnosis were avascular necrosis (46.9%, 79% men, mean age 50 years) and osteoarthrosis (41.6%, 43% men, mean age 60 years). Both the number of primary partial hip replacements and primary total hip replacements increased steadily between 1996 and 2004. The cumulative survival of primary partial hip replacements and primary total hip replacements in all patients were 93.97% and 79.47% in 9 years follow-up, respectively.

Conclusion: Avascular necrosis is the main disease in total hip replacement in Taiwan. The epidemiology of hip diseases was different between Han Chinese (in Taiwan) and Caucasian and the number of hip replacements increased substantially in Taiwan between 1996 and 2004.

No MeSH data available.


Related in: MedlinePlus