Cemented Total Knee Arthroplasty- A Short Term Clinical, Functional Assessment and Outcome Analysis.

Total Knee Arthroplasty (TKA) has become a standard operative procedure to relieve pain, and to restore alignment and function of patients with advanced arthritis of knees.1,2,3 Total knee arthroplasty has evolved into a very reliable surgical treatment for advanced arthritis of knee. TKA provides pain relief and improves function for patients with advanced osteoarthritis of the knee. The aim of this study is to prospectively evaluate the clinical and functional outcomes of total knee arthroplasty in arthritic knees in terms of pain relief, range of motion and stability.METHODSWe prospectively reviewed a series of 65 primary Total Knee Arthroplasties performed in 40 patients at our institute from November 2014 to November 2017. Of these patients, 12 underwent bilateral TKA in the same sitting, 13 underwent staged bilateral TKA and 15 patients underwent TKA on one side. Patients were followed up to 3 years post-operatively with an average follow up of 24 months and were evaluated with Knee Society Clinical Ratings and radiographic analysis.RESULTSPre-operative mean of clinical score (pain, ROM and stability) and functional score (walking distance and stair climbing) of patients improved from 48.33 to 92.82 and 49.65 to 88.43 respectively.CONCLUSIONSIn this short-term analysis of this prospective observational study, satisfactory results were obtained in a good percentage of arthritic knee patients

Daily step counts and health-related quality of life before and after bilateral and unilateral total hip arthroplasty / Journal of Rural Medicine

Purpose: We examined and compared the daily step counts and health-related quality of life of patients before undergoing either bilateral or unilateral (with or without arthritis in the opposite joint) total hip arthroplasty (THA), and for 6 months afterwards.Participants and Methods: Participants were patients who were living at home and were requested to wear accelerometers and log their daily step count preoperatively and again 6 months postoperatively. Additionally, they completed the Oxford Hip Score and EuroQol 5-Dimension questionnaires at both time points.Results: Data from 40 patients were analyzed. Patients underwent bilateral total hip arthroplasty (n=13), unilateral total hip arthroplasty with arthritis in the opposite joint (n=13), and unilateral total hip arthroplasty without arthritis in the opposite joint (n=14). The Oxford Hip Score and EuroQol 5-Dimension score showed that the daily step counts of patients who underwent bilateral or unilateral total hip arthroplasty without arthritis in the opposite joint significantly increased postoperatively, but that of patients who received unilateral THA with arthritis in the opposite joint did not change significantly. The Oxford Hip Score indicated an improvement in hip joint function after surgery, but the EuroQol 5-Dimension score did not show a significant change postoperatively in patients who received bilateral total hip arthroplasty.Conclusion: The pre- and postoperative comparisons of the participant’s daily step count after bilateral and unilateral operations without arthritis on the other side showed improvements in their amount of daily life activities. In all surgeries, Oxford Hip Score improvements were confirmed. The EuroQol 5-Dimension score of bilateral operations did not change. Bilateral operations and an understanding of unilateral postoperative qualitative support will be necessary in the future.

The Efficacy and Safety of Autologous Transfusion in Unilateral Total Knee Arthroplasty

PURPOSE: Although allogeneic blood transfusion is the most common method of transfusion in total knee arthroplasty (TKA), there are reports showing significant decrease in the amount of allogeneic transfusion and incidence of side effects after combined use of autologous transfusion. The purpose of this study is to investigate the efficacy of using an autologous transfusion device in TKA. MATERIALS AND METHODS: Patients who underwent TKA at our institution from January 2003 to January 2014 were divided into two groups: group A (n=127) who received allogeneic transfusion only in TKA and group B (n=118) who received autologous transfusion via an autologous transfusion device and allogeneic transfusion. In both groups, the patients were transfused when the hemoglobin level was below 9 g/dL. In group B, blood collected by the autologous transfusion device was transfused only once after surgery. The total blood loss volume, total transfusion volume, and the presence of side effects were assessed based on medical records. RESULTS: Group A received 294.6 mL more allogeneic transfusion than group B (p<0.001). There were no significant differences with regard to the development of side effects between groups. CONCLUSIONS: Application of an autologous transfusion device during TKA can be effective in reducing the allogeneic transfusion volume. Moreover, allogeneic transfusion was not necessary after autologous transfusion in some patients.

Clinical Evaluation of the Root Tear of the Posterior Horn of the Medial Meniscus in Total Knee Arthroplasty for Osteoarthritis

PURPOSE: To investigate the incidence of root tears of the posterior horn of the medial meniscus in total knee replacement arthroplasty for knee osteoarthritis and retrospectively analyze clinical results and factors associated with root tears. MATERIALS AND METHODS: There were 197 knees of 140 enrolled patients who had undergone total knee replacement arthroplasty between September 2010 and May 2014. The presence of a root tear of the posterior horn of the medial meniscus was confirmed in all patients. Statistical analysis was performed to investigate the correlation between root tears and the possible factors of meniscal tears including gender, age, severity of symptoms (visual analogue scale [VAS] score and medial joint line tenderness), grade of osteoarthritis (Kellgren-Lawrence grading scale), body mass index (BMI), varus deformity, and mechanical axis deviation. RESULTS: Meniscal tears were observed in 154 knees (78.17%). The root tear had correlation with the severity of osteoarthritis (p<0.05), varus deformity (p<0.05), mechanical axis deviation (p<0.05), and BMI (p<0.05). CONCLUSIONS: Factors considered to represent the severity of osteoarthritis were found to be associated with root tears of the medial meniscus posterior horn. Increased BMI seemed to be associated with the increased incidence of root tears of the medial meniscus posterior horn.

Causes of Femoral Component Radiologic Abnormality After Total Knee Arthroplasty Using Legacy Posterior Stabilized-Flex Prosthesis / 대한정형외과연구학회지

PURPOSE: We analyzed the causative factors of femoral component radiologic abnormality after total knee arthroplasty (TKA) using a Legacy Posterior Stabilized (LPS)-Flex prosthesis. MATERIALS AND METHODS: 140 cases of TKA using LPS-Flex and 140 cases of Vanguard from Jan 2008 to June 2010 were analyzed and radiographic abnormalities around the femoral stems were compared. Secondly, TKA using LPS-Flex was divided into two groups according to the posterior femoral cutting technique, which were single cutting method and additional cutting method. Accuracy of the femoral posterior resection was compared. RESULTS: Radiographically, anterior radiolucent line was found in eight cases with LPS-Flex but no case with Vanguard. Posterior overhang more than 30% was found in ten cases in both groups. Posterior bone defect more than 50% was found in 23 and seven cases respectively. Anterior radiolucent line and posterior bone defect were observed significantly more in LPS-Flex. In the second study, we found femoral posterior bone defect in 20 cases with additional cutting method which was caused by flexion of the femoral box-cutting guide. CONCLUSION: Posterior bone defect from LPS-Flex was caused by inappropriate resection due to flexion of the box cutting guide. Single cutting method should be adopted for more accurate posterior femoral cutting.

Comparison between the 2-peg Type and the Conventional Type of Oxford Unicompartmental Knee Arthroplasty: The Clinical and Radiological Results of Short-term Follow-up

PURPOSE: The purpose of this study was compared the clinical results, the range of motion and the radiologic evaluations of the classical type unicomparmental knee arthroplasty. MATERIALS AND METHODS: From February, 2007 to September, 50 patients who underwent minimal invasive unicompartmental knee arthroplasty for treating medial compartment osteoarthritis of the knee were enrolled. The conventional Oxford unicompartmental knee arthroplasty with a 1-peg design was performed in 26 patients, and these patients were 5 males and 21 females with a mean age of 65.1 (+/-6.9). New 2-peg design unicompartmental knee arthroplasty was performed in 24 patients and these patients were 5 males and 19 females with a mean age of 62.5 (+/-8.8). The clinical results, the range of motion and the radiologic results were compared between the preoperative period and postoperative 1 year. RESULTS: The clinical scores such as the International Knee Documentation Committee and Hospital for Special Surgery scores were improved from preoperative 61.7 and 63.6 to postoperative 74.0 and 80.3, respectively, but there were no significant differences between the 2 groups (p=0.313, p=0.763). The radiologic evaluations showed no significant differences. Yet the flexion/extension angle was significantly different between the groups, but this was within acceptable limits. CONCLUSION: On the short term follow up, the clinical result, range of motion and radiologic evaluation showed no significant difference between the new design (2-peg type) Oxford unicompartmental arthroplasty and the conventional kind. Both the conventional and 2-peg type unicompartmental arthroplasties can be useful treatments for medial compartment osteoarthritis.

The Influence of Symtomless Degenerative Changes of the Patellofemoral Joint on Clinical Results of Medial Unicompartmental Knee Arthroplasty / 대한정형외과학회잡지

PURPOSE: To evaluate the influence of degenerative changes in the patellofemoral joint on the clinical results of medial unicompartmental knee arthroplasty (UKA). MATERIALS AND METHODS: Between January and December 2002, we operated on 180 cases of minimally invasive UKA using the Oxford(R) phase 3. Of the 180 cases, 156 were followed up for a minimum period of 5 years. Based on intraoperative degenerative findings of the patellofemoral joint, we classified cases into 4 groups (Group I-78 cases, Group II-40 cases, Group III-27 cases, Group IV-11 cases), and the clinical data were analyzed prospectively. RESULTS: During follow-up, which averaged 6 years and 2 months, the knee score, the knee function score, the range of knee motion and the tibiofemoral angle were improved significantly (p0.05). To date, no complication or failure involving the patellofemoral joint has been observed. CONCLUSION: Clinical results of UKA are satisfactory for all groups, and the severity of patellofemoral degeneration has no influence on clinical outcome. Symptomless degenerative arthritis of the patellofemoral joint is not a contraindication for medial UKA.

The Effects of Patient Factors on the Functions and Clinical Results of Unicompartmental Knee Arthroplasty Using an Oxford Mobile Bearing Prosthesis

PURPOSE: The purpose of this study was to determine whether the functions and longevity of unicompartmental knee arthroplasty (UKA) are influenced by such patient factors as gender, age, height, weight and the body mass index (BMI) based on a comparative study of the cases. MATERIALS AND METHOD: Among the patients who underwent a UKA using an Oxford(R) phase 3 prosthesis, 154 cases (male: 13 cases, female: 141 cases) were categorized into two groups by their gender, age, height, weight and BMI, and they were followed-up for at least 5 years after operation. Their mean age, height, weight and BMI were 61.6 years, 154.5 cm, 61.9 kg and 25.9 kg/m2, respectively, and the mean follow-up period was 6 years 7 months. Clinical assessments were done using the Knee Society Score rating system. RESULTS: The average knee and function scores improved from 55.9 and 54.9 preoperatively to 87.9 and 82.4 at the last follow-up, respectively, and the mean range of knee motion improved from 129.7degrees to 133.5degrees. The postoperative knee score, function score and range of knee motion improved significantly in all the groups. The group younger than 60 years old had better function scores preoperatively and the group of taller than 155 cm had a larger range of knee motion postoperatively, but there were no other significant difference. The cumulative survival rate of the implant was 93.3%, and there was no significant difference of the survival rate of the implant according to gender, age, height, weight, and BMI. CONCLUSION: The clinical results of UKA were satisfactory in all the groups regardless of gender, age, height, weight and BMI with a mean of 6 years 7 months follow-up, and there were no significant differences on comparison between each group. Therefore, the mid-term clinical results of UKA using an Oxford phase 3 prosthesis are not influenced by these patient factors.

Quality of Life, Perceived Health Status, Pain, and Difficulty of Activity of Daily Living of Degenerative Arthritis Patient in Island Residents / 農村醫學 地域保健

OBJECTIVES: The purpose of this study was to identify and relationships among quality of life, perceived health status, pain and difficulty of daily activity with degenerative arthritis living in island residents. METHODS: The participants were 601 degenerative arthritis patients. Data were collected using structured questionnaires from June 23th to Oct. 08th, 2008 and analyzed using the SPSS 12.0 program. and it included descriptive statistics, t-test, chi-square-test, Pearson correlation coefficient. RESULTS: The mean quality of life score was 115.87, perceived health status was 4.40, pain was 6.31 and difficulty of daily activity was 77.62. On the demographic variables, age, living arrangement, level of economics showed significant difference for the quality of life and sex and age showed significant difference for the perceived health status, pain, difficulty of daily activity. On the disease-related variables, duration of disease, use of analgesic drug showed significant difference for the dependent variables. There was a significant positive correlation among the quality of life, perceived health status, significant negative correlation pain and difficulty of daily activity. CONCLUSIONS: These results suggested that nursing intervention program including pain reduction, enhancing the perceived health status, ADL abilities and quality of life were necessary for the osteoarthritis patients in island residents

The Clinical Results After Open Wedge Osteotomy of Proximal Tibia in Degenerative Knee Osteoarthritis

PURPOSE: The purpose of this retrospective study was to analyze the radiological and clinical results following high tibial osteotomy of the degenerative knee osteoarthritis. MATERIALS AND METHODS: This study included 12 patients who had degenerative knee osteoarthritis and had been treated with high tibial osteotomy with TS-OA plate. Mean age was 50.2 years old(43~62) and mean follow up period was 17.7 Months. Clinical evaluation were analysed by HSS score. RESULT: There were 2 cases of grade 2 and 10 cases of grade 3 based upon the radiological Kellgren classifications before surgery. The mean femorotibial angle was corrected from varus 6 degrees before surgery to valgus 8.5 degrees at the last follow up and the mean angle between mechanical axis and tibia long axis was corrected from varus 6.7 degrees to valgus 1.6 degrees. The Insall-Salvati ratio was changed from 1.07 before surgery to 1.04 at the last follow up and tibial posterior inclination was changed from 8.1 degrees to 10.2 degrees. HSS score was improved from 58 before surgery(5 cases fair, 7cases poor) to 86.3 at the last follow up(9 cases excellent, 3 cases good). CONCLUSION: The high tibial osteotomy is an effective treatment option for the management of degenerative knee osteoarthritis on medial compartment patients before total knee arthroplasty.

Relationship between Radiographic Classification and Articular Cartilage Lesions in Medial Degenerative Arthritis of the Ankle / 대한족부족관절학회지

PURPOSE: To investigate the relationship between classification based on simple radiographic findings and arthroscopic findings of the cartilage lesions in medial degenerative arthritis of the ankle joint. MATERIALS AND METHODS: We studied 41 ankles of 36 patients with asymmetrical narrowing of the medial joint space. Degenerative arthritis following fracture and those with generalized arthritic disease were excluded, but those with a history of ankle sprain were included. Standing radiographs of all patients were graded according to the Takakura classification and the Kellgren-Lawrence (K/L) classification. Arthroscopic findings were classified according to the depth, width, and anteroposterior dimension of articular cartilage damage. RESULTS: According to the Takakura classification, 29 ankles were classified as stage II, 7 cases as stage IIIA and 2 cases as stage IIIB. According to our classification of arthroscopic findings of 29 ankles in stage II, 1 ankle was graded as Grade I, 3 ankles as grade II, 10 ankles as grade III, and 15 ankles as grade IV. Spearman correlation coefficient between Takakura classification and arthroscopic classification was 0.342 (P=0.028), and coefficient between K/L classification and arthroscopic classification was 0.480 (P=0.001) CONCLUSION: Degenerative changes of the articular cartilage are more advanced than radiographic findings in many patients with ankle degenerative arthritis with asymmetrical narrowing of medial joint space. Therefore, we conclude that more aggressive effort should be made for correct diagnosis and treatment of degenerative arthritis.

Influencing Factors for Fear of Falling in Degenerative Arthritis Patients / 간호학회지

PURPOSE: The purpose of this study was to examine the relationship among fear of falling, pain, anxiety and depression, and to identify influencing factors in elderly women patients with degenerative arthritis living in the community. METHOD: The subjects of this study were 297 elderly women patients with degenerative arthritis. Data was collected by personal interviews using questionnaires. Data was analyzed by the SPSS(version 12.0) computer program, and it included descriptive statistics, one-way ANOVA, Pearson correlation coefficient, and Stepwise multiple regression. RESULTS: There was a significant difference (p= .000) in fear of falling according to the level of pain, anxiety, and depression. There was a significant positive correlation among fear of falling, pain, anxiety and depression. Depression, pain, number of medication, age, and anxiety showed significant predictors (43.5%) for fear of falling. CONCLUSION: This study suggested that thoroughly assessing predictors making an impact on fear of falling in the initial nursing assessment is the most important for falls prevention of elderly women patients with degenerative arthritis in the community.

Factors Affecting the Tibiofemoral Alignment in Minimally Invasive Unicompartmental Knee Arthroplasty / 대한정형외과학회잡지

PURPOSE: We analyzed affecting factors associated with the tibiofemoral alignment after minimally invasive unicompartmental knee arthroplasty (UKA) used to treat medial compartmental osteoarthritis of the knee. MATERIALS AND METHODS: From January 2003 to December 2003, 128 UKA were performed in 114 patients with minimally invasive surgery. The revealed tibiofemoral angle, tibial translation, posterior slope and the coronary orientation of the tibial and femoral component were measured using the preoperative and postoperative weight-bearing radiographs. The possible factors associated with the corrective tibiofemoral angle were analyzed statistically. RESULTS: The average corrective angle of the tibiofemoral axis was 5.8 degrees from varus 0.6 degrees preoperatively to valgus 5.2 degrees postoperatively. The average corrective angle of the tibiofemoral axis was 6.1 degrees in the mobile bearing group and 3.6 degrees in the fixed bearing group. There was significantly more corrective tibiofemoral angle postoperatively with a larger varus deformity of the knee preoperatively (p<0.0001). The corrective tibiofemoral angle had an increasing tendency with increasing bearing size but this was not statistically significant. Surgeons, the age of the patients, tibial translation, posterior slope of the tibial component, and coronary orientation of the tibial component and femoral component did not affect the degree of the corrective tibiofemoral angle. CONCLUSION: The average corrective angle of the tibiofemoral axis after minimally invasive UKA was 5.8 degrees. The preoperative tibiofemoral angle and the types of implants affected the postoperative tibiofemoral axis after minimally invasive UKA.

Effect of intra-articular ozone injection on degenerative cartilage of the rat's knee / 中国矫形外科杂志

[Objective] To observe the effect of medical ozone on cartilage in the model of osteoarthritis(OA)to explore its therapeutic mechanism.[Method] Forty healthy adult SD rats were randomly divided into five groups :A(group normal)、B(group model)、C(group air),D(group O2~O3 35 ?g/ml)and E(group O2~O3 70 ?g/ml)(n=8 in each group).The OA model was duplicated by performed anterior eruciate ligament transection(ACLT)and partial meniscectomy of 1/3 inside.Air was injected into joints of group C,according to concentration different,which O2~O3 35 ?g/ml and O2~O3 70 ?g/ml were respectively injected into joints to D and E group every other day,every time 1～1.5 ml,and after a week injected again.After the model was successfully made,the condylar cartilage of femur was excised after 4 weeks for the observation by transmissive microscope of HE staining.Mankin's index was recorded.At the end of the experiment,douche fluid of the diseased joints were obtained for the measurements of superoxide dismutase(SOD)and malondialdehyde(MDA).[Result]The OA model in B group founded obviously degenerative changes under microscopy,resulting in mostly blue and green color destaining of Masson staining at superficial cartilage.The activity of SOD in the douche fluid of the diseased joints degraded and the quantity of MDA in the serum in the OA model group increased.The Mankin's index in the group D was significantly higher than that in the group B、 C(P

Unicompartmental Knee Arthroplasty: A Prospective Analysis and Short-term Results / 대한정형외과학회잡지

PURPOSE: To evaluate the early postoperative results of Unicompartmental Knee Arthroplasty (UKA) based on a prospective analysis and follow up study. MATERIALS AND METHODS: Clinical assessments were carried out using the Knee Society Score (KSS) rating system. The tibiofemoral angle and radiographic changes were measured using weight-bearing X-rays. Prospective assessments were conducted preoperatively, and regularly followed up after the operation. Among the cases of UKA performed since January 2002, 67 were able to be followed up at 3, 6, 12 and 24 months after the operation. RESULTS: For these 67 knees, the average preoperative knee score and the knee function score were 54.6 and 56.3 points, respectively. The knee score was improved to 80.1, 85.4, 86.8 and 89.2 points at 3, 6, 12 and 24 months follow ups, respectively. The knee function score was also improved to 70.4, 76.0, 80.2 and 83.0 points at 3, 6, 12 and 24 months. The average range of knee motion was 127.6 degrees preoperatively, and recovered to 128.6 degrees at 3 months postoperatively. The preoperative tibiofemoral angle was 0.7 degrees of valgus, which changed to 5.7 degrees of valgus at 24 months postoperatively. CONCLUSION: As shown in this prospective study, the early postoperative results of UKA were satisfactory for improvement of knee score, function score and in the recovery of knee motion.

Short-Term Results and Early Complications of Minimally Invasive Unicompartmental Knee Arthroplasty

PURPOSE: To evaluate the short-term postoperative results of minimally invasive Unicompartmental Knee Arthroplasty(UKA) and to analysis the early postoperative complications. MATERIALS AND METHODS: 241 cases of UKA have been performed since January 2002 and followed up for average 27.3 months. Most of cases were medial compartment degenerative arthritis. All operative procedures were performed through minimally invasive technique. Clinical assessments were carried out using the Knee Society Score (KSS) rating system. RESULTS: The average knee score and the knee function score were improved from 55.4 and 55.4 points preoperatively to 89.3 and 84.9 points at final follow up. The average range of knee motion was 128.4 degrees preoperatively and recovered to 133.0 degrees at final follow up. Average preoperative tibiofemoral angle was 0.2 degrees of varus, which changed to 5.5 degrees of valgus at final follow up. Early complications after minimally invasive UKA were seen in 14 cases, 13 of which were occured within the first year. There were 4 polyethylene insert dislocation, 3 periprosthetic fracture, 2 femoral component loosening, 3 MCL injury and 1 infection. We also experienced 2 partial capsular rupture, 1 remained cement fragment in the joint and 1 impingement between osteophyte and stem. Two femoral component loosening and 1 MCL injury were combined with bearing dislocation. CONCLUSION: The short-term postoperative results of minimally invasive UKA were clinically satisfactory for improvement of knee score, function score and in the recovery of knee motion. The complication rate of UKA was relative low, but mostly caused by errors in surgical technique. Accurate surgical technique and enough experience were needed to improve clinical results and reduce the complications. When complications have occurred, better results are expected by more appropriate treatment for the cause of the complications.

Radiological Analysis of the Degenerative Arthritis of the Ankle / 대한족부족관절학회지

PURPOSE: This study was performed to investigate the radiological characteristics of the degenerative arthritis of the ankle using the standing radiographs. MATERIALS AND METHODS: From June 2001 to May 2005, 36 patients (56 ankles) who were treated for osteoarthritis of ankle were analysed. Angle of tibial shaft and tibial joint surface on AP view (TSA), angle of tibial joint surface on lateral view (TLS), tibial and medial malleolus angle (TMM) and talo-1st metatarsal angle were checked on standing radiograph. The patients with medial joint and total joint involvement were categorized into three stages according to the location of involvement. The degree of joint space narrowing was categorized into two groups. RESULTS: There were no significant differences in TSA, TLS, TMM and talo-1st metatarsal angle with regard to the stage of arthritis. However, the difference between the less severe group and the severe group existed. CONCLUSION: Angular deformity was not correlated with stage, but correlated with severity. The deformity of distal tibial articular surface does not seem to be a cause of primary osteoartiritis, but rather a result from it.

Radiological Analysis of the Degenerative Arthritis of the Ankle / 대한족부족관절학회지

PURPOSE: This study was performed to investigate the radiological characteristics of the degenerative arthritis of the ankle using the standing radiographs. MATERIALS AND METHODS: From June 2001 to May 2005, 36 patients (56 ankles) who were treated for osteoarthritis of ankle were analysed. Angle of tibial shaft and tibial joint surface on AP view (TSA), angle of tibial joint surface on lateral view (TLS), tibial and medial malleolus angle (TMM) and talo-1st metatarsal angle were checked on standing radiograph. The patients with medial joint and total joint involvement were categorized into three stages according to the location of involvement. The degree of joint space narrowing was categorized into two groups. RESULTS: There were no significant differences in TSA, TLS, TMM and talo-1st metatarsal angle with regard to the stage of arthritis. However, the difference between the less severe group and the severe group existed. CONCLUSION: Angular deformity was not correlated with stage, but correlated with severity. The deformity of distal tibial articular surface does not seem to be a cause of primary osteoartiritis, but rather a result from it.

Arthroscopic Treatment in Degenerative Arthritic Knee with Moderate Joint Space Narrowing / 대한정형외과학회잡지

PURPOSE: This study was performed to determined by follow-up observation, the result of the arthroscopic treatment for advanced degenerative arthritis of the knee joint. MATERIALS AND METHODS: During the period from January 1991 to December 1995, 270 cases had been followed for more than one year after arthroscopic treatment for degenerative arthritis of the knee joint. There were 66 males and 204 females of average age 61 years. On the Kellgren and Lawrence radiological grading system, follow-up radiography was conducted after the treatment in those cases Grade III before the treatment. A clinical assessment was performed pain, range of motion and the Hospital for Special Surgery (HSS) knee score before and after operation, and the Baumgaertner scale was used for the 2 and 48 month follow-up after operation. Recurrence was considered to have occurred when conditions were the same as before treatment. RESULTS: According to the Baumgaertner scale, clinical assessment showed overall rates of excellent and good in 191 cases (70.8%) at 2 month post-operatively, and 157 cases (58.1%) at 48 month post-operatively. Comparing the radiologic results before and after treatment using Baumgaertner's scale. the radiologically lower grade was the better result And a degenerative symptom was aggravated an average of 3.8 years. CONCLUSION: This study shows that the arthroscopic treatment is an effective option if used during the early stage of degenerative arthritis of the knee joint.

Gait Analysis in Degenerative Arthritis of the Knee at Pre- and Post-Total Knee Arthroplasty (TKA)

OBJECTIVES: To evaluate changes of the gait pattern and the clinical improvement in patients with degenerative arthritis of the knee after total knee arthroplasty (TKA). METHOD: Gait analysis was performed in 64 patients with degenerative arthritis of the knee at pre- and post-surgery 1 year, also Hospital for Special Surgery (HSS) knee score and Visual analogue scale (VAS) for clinical assessment were investigated. RESULTS: 1) In the HSS knee score and VAS, there were statistically significant improvement after surgery (p<0.05). 2) In the postoperative gait analysis, all the linear parameters except single limb support period were significantly improved (p<0.05). Single limb support period was improved, but statistically insignificant. All the kinematic and kinetic parameters also were significantly improved (p<0.05). CONCLUSION: This study suggests that gait analysis can be used for quantitative evaluation of the effects of total knee arthroplasty in patients with degenerative arthritis of the knee.