title: 10-year survival comparison of two cemented implants in primary total hip arthroplasty for osteoarthritis: A New Zealand regional study

authors: Pearce, Amy

subjects: total hip replacement

abstract: Introduction
Compare 10-year survival of the cemented highly crosslinked polyethylene Exeter® Rimfit™ (Rimfit) Cup and its predecessor, the ultra-high molecular weight polyethylene Exeter® Contemporary Flanged Cup™ (ECF), both with an Exeter® V40™ stem, in primary total hip arthroplasty (THA) for osteoarthritis in the Bay of Plenty region of NZ.

Method
We extracted national registry data for THA surgeries in the region between 1 January 2003 and 30 June 2023 and report the 10-year survival and reasons for revision of the two fully cemented implants (n = 495). We compared standard Kaplan-Meier estimates using the log-rank test. Cox proportional hazard models investigated the potential influence of six patient variables on the survival of each implant: sex, age, body mass index (BMI), ethnicity, American Society of Anesthesiologists (ASA) rating, and funding source (public/private).

Results
No statistically significant difference in 10-year survival rate between the implants (p = 0.334) (ECF 95.6% [93.4, 97.9], Rimfit 97.0% [95.9, 98.2]) or statistically significant difference in revision reasons between the implants (p = 0.09) was noted. Cox regression revealed no statistically significant influence of any of the six patient variables on the 10-year survival of the ECF (p = 0.584) or Rimfit (p = 0.611).

Conclusion
Both implants exceeded 95% survival at 10-years, which is favourable compared to the corresponding 94.8% national survivorship of cemented implants in NZ. There is no statistically significant difference in the 10-year survival rate or reasons for revision of the two cemented implants compared in this region. The Rimfit appears a suitable alternative to the ECF, from a survival and revision perspective.

text: 10-year survival comparison of two cemented implants in primary total hip arthroplasty for osteoarthritis: A New Zealand regional study Introduction
Compare 10-year survival of the cemented highly crosslinked polyethylene Exeter® Rimfit™ (Rimfit) Cup and its predecessor, the ultra-high molecular weight polyethylene Exeter® Contemporary Flanged Cup™ (ECF), both with an Exeter® V40™ stem, in primary total hip arthroplasty (THA) for osteoarthritis in the Bay of Plenty region of NZ.

Method
We extracted national registry data for THA surgeries in the region between 1 January 2003 and 30 June 2023 and report the 10-year survival and reasons for revision of the two fully cemented implants (n = 495). We compared standard Kaplan-Meier estimates using the log-rank test. Cox proportional hazard models investigated the potential influence of six patient variables on the survival of each implant: sex, age, body mass index (BMI), ethnicity, American Society of Anesthesiologists (ASA) rating, and funding source (public/private).

Results
No statistically significant difference in 10-year survival rate between the implants (p = 0.334) (ECF 95.6% [93.4, 97.9], Rimfit 97.0% [95.9, 98.2]) or statistically significant difference in revision reasons between the implants (p = 0.09) was noted. Cox regression revealed no statistically significant influence of any of the six patient variables on the 10-year survival of the ECF (p = 0.584) or Rimfit (p = 0.611).

Conclusion
Both implants exceeded 95% survival at 10-years, which is favourable compared to the corresponding 94.8% national survivorship of cemented implants in NZ. There is no statistically significant difference in the 10-year survival rate or reasons for revision of the two cemented implants compared in this region. The Rimfit appears a suitable alternative to the ECF, from a survival and revision perspective.

year: 2025

title: Home as a hybrid centre of medication practice

authors: Dew, Kevin

subjects: households

abstract: This article presents research that explores how medications are understood and used by people in everyday life. An intensive process of data collection from 55 households was used in this research, which included photo-elicitation and diary-elicitation interviews. It is argued that households are at the very centre of complex networks of therapeutic advice and practice and can usefully be seen as hybrid centres of medication practice, where a plethora of available medications is assimilated and different forms of knowledge and expertise are made sense of. Dominant therapeutic frameworks are tactically manipulated in households in order for medication practices to align with the understandings, resources and practicalities of households. Understanding the home as a centre of medication practice decentralises the role of health advisors (whether mainstream or alternative) in wellness practices.

text: Home as a hybrid centre of medication practice This article presents research that explores how medications are understood and used by people in everyday life. An intensive process of data collection from 55 households was used in this research, which included photo-elicitation and diary-elicitation interviews. It is argued that households are at the very centre of complex networks of therapeutic advice and practice and can usefully be seen as hybrid centres of medication practice, where a plethora of available medications is assimilated and different forms of knowledge and expertise are made sense of. Dominant therapeutic frameworks are tactically manipulated in households in order for medication practices to align with the understandings, resources and practicalities of households. Understanding the home as a centre of medication practice decentralises the role of health advisors (whether mainstream or alternative) in wellness practices.

year: 2013

title: Impact of tephra fall and environmental change: a 1000 year record from Matakana Island, Bay of Plenty, North Island, New Zealand.

authors: Giles, Teresa M.

abstract: Palynological evidence was used to determine the development of vegetation communities on Matakana Island, North Island, New Zealand, over the last 1000 radiocarbon years. The pollen record indicates that changes occurred in the vegetation immediately following fallout deposition of the Kaharoa Tephra approximately 100 km from source at c. 665 years BP. Such changes may be a direct response to the impact of tephra fall, although the possibility of anthropogenic disturbance cannot be discounted. As a result of the eruption some taxa (Leucopogon fasciculatus and Tupeia antarctica) became at least temporarily extinct from the area. Two phases of anthropogenic influence on the environment are recorded in the pollen record: Polynesian, followed by European inhabitation of the island, giving a detailed history of human influence in the area for the millennium.

text: Impact of tephra fall and environmental change: a 1000 year record from Matakana Island, Bay of Plenty, North Island, New Zealand. Palynological evidence was used to determine the development of vegetation communities on Matakana Island, North Island, New Zealand, over the last 1000 radiocarbon years. The pollen record indicates that changes occurred in the vegetation immediately following fallout deposition of the Kaharoa Tephra approximately 100 km from source at c. 665 years BP. Such changes may be a direct response to the impact of tephra fall, although the possibility of anthropogenic disturbance cannot be discounted. As a result of the eruption some taxa (Leucopogon fasciculatus and Tupeia antarctica) became at least temporarily extinct from the area. Two phases of anthropogenic influence on the environment are recorded in the pollen record: Polynesian, followed by European inhabitation of the island, giving a detailed history of human influence in the area for the millennium.

year: 1999-01-01