Search

BACKGROUND: In recent years, in traumatology and orthopedics, statistical methods of survival analysis have been used to assess long-term treatment results, which make it possible to take into account censored clinical observations. This method of statistical analysis allows to take into account both cases of attrition from care and cases of incomplete follow-ups. There is no concurrent point of view on the dependence of the long-term results of hip and knee arthroplasty on the comorbidity of a patient. This circumstance fosters a special study using survival analysis. AIM: To study the long-term results of total hip and knee arthroplasty in the patients with osteoarthritis. To determine the patients quality of life depending on the presence of pronounced concomitant pathology. MATERIALS AND METHODS: The groups of patients with comorbidity and without significant concomitant pathology have been compared. The first group included 806 patients aged 19 to 88 years who underwent primary total hip replacement in the Clinic of Traumatology and Orthopedics of the North-Western State Medical University named after I.I. Mechnikov from 2014 to 2018 in connection with osteoarthritis. The second group consisted of 376 patients aged 43 to 85 years who underwent primary total KR due to osteoarthritis in the V.A. Baranov Republican Hospital (Petrozavodsk) in 20162019. Statistical data processing and graph design have been carried out with R programming language with open access via https://cran.r-project.org. The probability of maintaining a satisfactory assessment of the quality of life by a certain observation point t (year of observation) has been assessed using the KaplanMayer method. The logrank test has been used in order to compare the probability of maintaining a satisfactory assessment of quality of life during the entire follow-up period in the groups of patients with and without polymorbidity. RESULTS: At the end of the 5th year of follow-up, the probability of maintaining excellent and good quality of life after hip replacement with a 95% confidence interval was 0.88 (0.81; 0.94) in the patients without comorbidity, 0.84 (0.79; 0.88) in the patients with severe concomitant pathology. Test statistics (Z = 0.93) and p = 0.31 indicate statistically insignificant differences in survival curves between the groups of patients with varying degrees of comorbidity. When analyzing the five-year results of the knee replacement, the quality of life among patients with high and low comorbidity did not differ significantly. The probability of excellent and good quality of life at the 5th year of follow-up in practically healthy patients and in cases of mild therapeutic disease was 0.78 (0.67; 0.88); with a high degree of comorbidity 0.74 (0.65; 0.81). CONCLUSIONS: By the end of the 5th year of follow-up of the patients who have undergone hip or knee replacement due to osteoarthritis, an excellent and good quality of life can be expected on average in 80% of the patients. Satisfactory and unsatisfactory in 20% of the patients. Excellent and good quality of life 5 years after hip or knee arthroplasty in the patients with severe comorbidity does not significantly differ from that in the practically healthy patients without comorbidity (р 0,05).

Osteoarthritis has the highest prevalence among the musculoskeletal diseases in all economically developed countries. Despite the improvement of diagnostic and treatment methods, the number of patients with osteoarthritis is increasing. The number of cases of newly diagnosed osteoarthritis, cases of disease progression and subsequent disability are also growing. There are many guidelines for treatment of osteoarthritis, however, specialists have no consensus, especially regarding the amount and duration of conservative therapy. The aim of the study was to analyze publications providing complex treatment options of hip osteoarthritis. A systematic literature review has been conducted by means of the open acccess Pub-Med/MEDLINE database and eLibrary search for the period until January 2022. The search depth was 20 years and was performed by keywords and phrases: hip joint osteoarthritis, conservative treatment, minimally invasive surgery, total hip arthroplasty. Unfortunately, the screening criteria for patients with osteoarthritis for total hip arthroplasty are not developed. The review analyzes the options of conservative therapy and minimally invasive surgical treatment for patients with osteoarthritis as the opportunity to avoid or delay the total hip replacement. The hip arthroplasty is not considered the gold standard; joint decision on surgery based on a comprehensive approach is made only when all the possibilities of conservative therapy are exhausted. It is widely believed that complex treatment using modern conservative and organ-preserving methods is the most common strategy for managing osteoarthritis of the hip joint. This approach improves clinical and functional condition of patients and slows down the progression of the disease.

The risk of intraoperative and postoperative complications after spinal surgery still remains in the hospital-acquired conditions of any hospital. The methods for performing spinal surgery in children and adults are developing and constantly improving. A significant number of constructions for performing spinal surgery are created by leading manufacturers. The frequency of local and systemic surgical complications has not decreased. Knowing the rate and structure spinal surgery complications can expand the ability to predict and prevent them, which is important for medical science and practice. The presented review of literature addressed the current state of knowledge on spinal surgery complications.