膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

膝关节单室置换的近期疗效

Objective To explore the indication and observe short-term clinical outcome of the medial Oxford Ⅲ mobile bearing unicompartmental knee replacement (UKR) through a minimal invasive approach for the patients with osteoarthritis of the knee. Methods A retrospective study of the clinical outcomes from May 2006 to May 2008 was done on 30 knees in 21 patients after receiving the UKR with the mobile bearing Oxford Ⅲ prosthesis. There were 9 males (12 knees), 12 females (18 knees), with the mean age of (61.4±7.3) years (ranged 46-76 years). All patients were evaluated pre and postoperatively using X-ray image, the Knee Society Score (KSS) and the WOMAC osteoarthritis index and examined the ROM and the varus deformity of the knee with osteoarthritis. Results The average follow-up time was 17 months. The mean operation time was (83.0±12.9) min and the mean hospital stay was (9.3±2.0) days. No complications of infection, thrombosis, mobile beating dislocation were found. The loss of flexion of the operated knee was not significant. The average femorotibial angle decreased from 182.0°±4.3° preoperatively to 177.0°±3.5° postoperatively in the anterioposterior view of X-ray. The KSS clinical score and function score were improved from average 44.0±3.7 and 54.0±5.1 to 93.0±3.2 and 92.0±2.4 respectively. The WOMAC Score was average 48.0±4.2 preoperatively, 14.0±2.5 at the last evaluation. Statistically significant differences were found pre and postoperatively from the aforementioned evaluation criterions. Conclusion The short-term clinical outcomes of medial Oxford Ⅲ mobile bearing UKR through a minimally invasive approach are ideal, and it is a good therapy choice for the patients with medial osteoarthritis of the knee. But it is also important to choose the suitable patients with indications.     

全膝关节置换治疗僵硬膝关节的早期疗效分析

Objective To evaluate the outcome of primary total knee arthroplasty (TKA) in treatment of stiff knee, and discuss the key points of operative technique and rehabilitation. Methods From February 2005 to April 2009, 23 patients with 34 stiff knees were treated with primary TKA. The study included 3 males (4 knees) and 20 females (30 knees), with the mean age of 56.9 years. Primary disease of the patients included rheumatoid arthritis (26 knees in 15 cases) and osteoarthritis (8 knees in 8 cases). Varus deformity was found in 10 knees (5°-15°), and valgus was found in 5 knees (5°-10°). Evaluations included preoperative and postoperative range of motion (ROM) measurement, hospital for special surgery knee score (HSS), blood loss, operative time and assessment of postoperative complications. Results All patients were followed up. The mean follow-up time was 32.2 (range, 24 to 40) months. At the final follow-up visit, the HSS score increased from 42.9±5.2 preoperatively to 85.7±4.3, the range of motion increased from 42.6°±5.7° preoperatively to 89.2°±10.5°. Sixteen knees in 12 cases underwent manipulation at 3 to 8 weeks postoperatively for unsatisfied ROM, but ROM was still less than 90° in 8 knees at the last follow-up. The average blood loss were (632.4±180.2) ml in first 24 hours (450-850 ml) and the operative time were (98.1±18.6) min (80-150 min). Deep venous thrombosis was found in 3 patients. All the symptoms relieved after anticoagulant therapy. Postoperative varus deformity was seen in one patient, but the function of knee was good. No revision was needed. Conclusion Primary total knee arthroplasty is reliable method in treatment of stiff knees. Sufficient soft tissue release during the operation, postoperative muscle strength exercise and essential manipulation are key points for satisfactory outcomes.