PURPOSE OF THE STUDY Dislocation is one of the most common early complications of total hip arthroplasty (THA). In this manuscript, 20 years of experience with the management of this complication are presented, particularly in relation to the type of instability. MATERIAL AND METHODS In the period between January 1999 and December 2020, at least one dislocation occurred in 157 of 8 286 (1.9%) THA patients, of which 117 dislocations (1.6%) in primary and 40 (3.4%) in revision THAs. Almost all patients were operated on from the anterolateral approach during the follow-up period. The type of dislocation was evaluated using the modified Dorr classification. In the first dislocations, conservative approach was usually opted for, except for cases with a clear malposition, irreducible or unstable hips after the reduction. The minimum follow-up period was 18 months (18-240). The success rate of the chosen treatment approach was assessed by means of standard statistical methods. RESULTS The total dislocation rate in the follow-up period was 1.6% for primary THAs and 3.4% for revision THAs. The dislocation rate was slightly higher between 1999 and 2009 compared to the following decade (2.1% versus 1.3% for primary THAs; p=0.009). The most common type of dislocation was the positional dislocation (62%), followed by dislocations due to a combination of causes (17%) and component malposition (11%). Treatment of dislocation was successful in a total of 130 patients (130/157; 83%). Even though a stable hip was achieved in 21 patients (13%), the functional outcome was unsatisfactory, and in 6 patients (4%) we failed to achieve a stable hip. In the positional type of dislocation, the success rate of closed reduction following the first-time dislocation was 86.4% and a similar success rate was reported for reoperations in the first-time dislocations due to the malpositioned components (85.7%). In the second-time dislocation, the surgical therapy was significantly more reliable compared to closed reduction regardless of the type of dislocation (78.6% versus 46%). The treatment of dislocations following primary THAs showed comparable outcomes to those of the treatment of dislocations following revision THAs. Overall, the worst outcomes were achieved in patients with a combined type of dislocation. In total, the THA had to be removed in 11.5% of hips (18/157). The probability of final THA removal increased with the increasing order of dislocation. DISCUSSION In our group of patients, the dislocation rate in THA was comparable or lower than the published data. With the use of preventive measures, i.e. dual mobility cup or larger head diameters in high-risk patients, we managed to reduce the dislocation rate over time. The positional type of dislocation prevails in our group of patients just as in the previously published series, followed by instability from malposition of components. The modified Dorr classification is used to guide the treatment since it allows us not only to make good decision about the treatment modality but to some extent also to estimate the final outcome, particularly with respect to restoring a functional and stable hip. CONCLUSIONS The total dislocation rate was 1.6% for primary THAs and 3.4% for revision THAs. The first-time dislocation of the positional type shall be treated conservatively. Conversely, in the other types of dislocations and in recurrent dislocations, surgical treatment is more likely to achieve a good clinical outcome. The worst outcomes are to be expected in an instability due to combination of multiple causes, which leads to the removal of THA more often than in other types of dislocations. Also, the benefit of preventive measures in high-risk patients over time has been confirmed. Key words: total hip arthroplasty, dislocation, Dorr's classification, treatment strategy, outcomes, complications.
- MeSH
- dislokace kloubu * MeSH
- lidé MeSH
- náhrada kyčelního kloubu * škodlivé účinky MeSH
- reoperace MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
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x
- MeSH
- amoxicilin aplikace a dávkování terapeutické užití MeSH
- antibakteriální látky terapeutické užití MeSH
- debridement metody MeSH
- infekce spojené s protézou * chirurgie terapie MeSH
- klindamycin aplikace a dávkování terapeutické užití MeSH
- lidé MeSH
- replantace metody MeSH
- rifampin aplikace a dávkování škodlivé účinky terapeutické užití MeSH
- senioři MeSH
- Check Tag
- lidé MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
x
x
- MeSH
- infekce močového ústrojí komplikace MeSH
- infekce spojené s protézou * prevence a kontrola MeSH
- komplikace diabetu MeSH
- kouření MeSH
- lidé MeSH
- náhrada kyčelního kloubu metody normy MeSH
- obezita komplikace MeSH
- podvýživa komplikace MeSH
- revmatoidní artritida farmakoterapie komplikace MeSH
- rizikové faktory * MeSH
- zubní kaz komplikace MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
PURPOSE OF THE STUDY The study aims to quantify the costs of a hospital stay of patients with periprosthetic joint infection after total hip arthroplasty throughout the period of treatment. MATERIAL AND METHODS The group included patients who have been treated at our department for infection as a complication of total hip replacement since 1 January 2011, who have been provided with treatment (including complications) exclusively at the departments of Nemocnice České Budějovice, a.s. and whose treatment can be considered completed in 2019. The patients were included in the study regardless of the type of infection and method of treatment. The group consisted of 36 patients (16 men and 20 women). There were 3 cases of early postoperative infection, 14 cases of late postoperative infection and 19 cases of hematogenous infection. The group includes 8 patients treated by a one-stage reimplantation, 19 patients managed by a two-stage reimplantation, 6 patients treated by a revision surgery with implant retention, and 3 patients in whom only the implant removal was possible. In selected patients, all the reported points for all the hospital stays and costs incurred on a separately charged material were ascertained and the final sum was compared with the reimbursement obtained by the hospital in the DRG system valid for the respective year of treatment. The total costs were analysed and also an analysis by type of infection and method of treatment was carried out. RESULTS The average costs of managing infection as a complication of total hip arthroplasty at our department amounted to CZK 320 065 (CZK 56 995 - CZK 953 614), the reimbursement in respect of the monitored cases in the DRG system equalled CZK 220 503 (CZK 89 149 - CZK 589 974). The aforementioned suggests that the average loss per treated patient is CZK 99 562 (CZK + 63 372 - CZK -428 499). DISCUSION Care associated with infections as a complication of total hip arthroplasty is very costly and these costs are not fully covered by the reimbursement from the health insurance companies. In the Czech Republic, these costs have not been quantified as yet, therefore it is only possible to compare the costs with international publications arriving at similar conclusions and with own monitoring of the costs of periprosthetic joint infections after total hip arthroplasty. The most economically efficient is the one-stage replacement which, however, is not suitable for all the patients, and the two-stage reimplantation continues to be the gold standard. In our study, the most expensive was found to be the treatment of periprosthetic joint infection after total hip arthroplasty, in which also the highest financial loss is reported. CONCLUSIONS Due to the very high costs of treatment for periprosthetic joint infections after total hip arthroplasty, it is necessary to exert maximum efforts to prevent periprosthetic joint infections and to consider a change in the method of financing, particularly in centres to which patients are referred from other centres in order to make this treatment economically viable. Key words:total hip arthroplasty, PJI - periprosthetic joint infection, economic analysis.
- MeSH
- délka pobytu ekonomika MeSH
- infekce spojené s protézou ekonomika etiologie chirurgie MeSH
- lidé MeSH
- náhrada kyčelního kloubu škodlivé účinky ekonomika MeSH
- odstranění implantátu ekonomika MeSH
- reoperace ekonomika MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE OF THE STUDY The study aims to quantify the costs of a hospital stay of patients with total knee periprosthetic joint infection throughout the period of treatment. MATERIAL AND METHODS The group included patients who have been treated at our department for infection as a complication of total knee replacement since 1 January 2011, who have been provided with treatment (including complications) exclusively at the departments of Nemocnice České Budějovice, a.s. and whose treatment can be considered completed in 2018. The patients were included in the study regardless of the type of infection and method of treatment. The group consisted of 24 patients (11 men and 13 women). There were 2 cases of early postoperative infection, 6 cases of late postoperative infection and 16 cases of hematogenous infection. The group includes 17 patients treated by a two-stage reimplantation, 6 patients treated by a revision surgery with implant retention, and 1 patient treated by a one-stage replacement. In selected patients, all the reported points for all the hospital stays and costs incurred on a separately charged material were ascertained and the final sum was compared with the reimbursement obtained by the hospital in the DRG system valid for the respective year of treatment. The total costs were analysed and moreover, an analysis by type of infection and method of treatment was carried out. RESULTS The average costs of managing infection as a complication of TKA in our department amounted to CZK 405 864 (CZK 66 768-CZK 181 17). The average cost of a two-stage revision was CZK 497 487, the cost of a revision surgery with original implant retention was CZK 175 312. The reimbursement in respect of the monitored cases in the DRG system equalled CZK 276 230 (CZK 40 943-CZK 848 401). The aforementioned suggests that the average loss per a treated patient is CZK 129 635 (CZK + 26 066Kč-CZK -332 774). DISCUSION Our study is in agreement with recent literature, when confirming that the care associated with infections as a complication of TKA is very costly (especially in case of a two-stage reimplantation) and also that this care is not fully covered by the health insurance company. The reimbursement made by the health insurance companies does not cover on average 1/3 of the costs of care for an infectious patient. Theoretically, the reasons behind the reduced reimbursement may be sanctions which, however, cannot be accepted in case of late hematogenous infections which constituted more than 50% in our group. CONCLUSIONS Our study presented the actual costs associated with the care of TKA infection. It makes sense that the most expensive is the two-stage reimplantation, which is nevertheless still considered to be the gold standard procedure in chronic TKA infection. High costs of therapy together with the requirement of expert care would justify the introduction of care provided by specialised centres. In this case, centralisation could result in a more efficient use of funds and improvement of the quality of provided care. Key words:total knee arthroplasty, PJI - periprostetic joint infection, economic analysis. ÚVOD.
- MeSH
- délka pobytu ekonomika MeSH
- infekce spojené s protézou ekonomika etiologie chirurgie MeSH
- kolenní kloub chirurgie MeSH
- lidé MeSH
- reoperace ekonomika MeSH
- totální endoprotéza kolene škodlivé účinky ekonomika MeSH
- úhrada zdravotního pojištění ekonomika MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
