We report herein a rare case of lateral parapatellar synovial plica that developed simultaneously in both knees. A 15-year-old competitive soccer player visited our institution with a six-month history of anterolatera...We report herein a rare case of lateral parapatellar synovial plica that developed simultaneously in both knees. A 15-year-old competitive soccer player visited our institution with a six-month history of anterolateral pain and catching sensation in both knee joints. On physical examination, he complained of tenderness along the joint line of bilateral patellofemoral joint (PFJ). Visible and palpable popping was observed at the lateral margin of each patella during active knee motion. Magnetic resonance imaging showed obvious synovial soft nodules in the lateral side of the PFJ. On arthroscopy, a yellowish, thick, tongue-shaped tissue extending transversely from the lateral parapatellar synovium was identified in both knees, and parts of this tissue showed avascular hypertrophy. Arthroscopic findings of both knees are almost symmetrical in anatomical location, but no similar in size. After arthroscopic excision, the patient became asymptomatic. At 24-month follow up, he demonstrated full knee function, without evidence of local recurrence.展开更多
<b><span>Background:</span></b><span> Patient-reported outcome</span><span> (</span><span>PRO</span><span>) </span><span>ha</span><...<b><span>Background:</span></b><span> Patient-reported outcome</span><span> (</span><span>PRO</span><span>) </span><span>ha</span><span>s</span><span> become the focus of increased attention in the assessment of total knee arthroplasty (TKA). The purpose of this study was to investigate whether different prosthesis designs affected postoperative patient-reported performance.</span><i><span> </span></i><b><span>Materials and Methods:</span></b><i><span> </span></i><span>We reviewed 216 patients (234 knees) implanted with the Press-Fit Condylar <pfc> Sigma prosthesis</pfc></span><b><span> </span></b><span>at our institution between January 2009 and December 2011. This study included 76 knees with fixed-bearing cruciate-retaining (FB-CR), 78 knees with fixed-bearing posterior-stabilized (FB-PS), and 80 knees with mobile-bearing posterior-stabilized (MB-PS) designs. The mean follow-up was 8.0 ± 0.74</span><b><span> </span></b><span>years. Preoperative and follow-up ratings according to the 2011 Knee Society Score (2011 KSS), range of motion (ROM), and standing femoro-tibial angle (FTA) were obtained for all patients. Additionally, Western Ontario and McMaster Universities Arthritis Index (WOMAC) scores were collected at last follow-up.</span><i><span> </span></i><b><span>Results:</span></b><span> </span><span>Three separate subscales of the 2011 KSS of the three</span><b><span> </span></b><span>cohorts were significantly improved post-operatively compared to the pre-operative values (</span><i><span>p</span></i><span> </span><span><</span><span> </span><span>0.05), except for expectation scores. At the time of follow-up, significantly higher the 2011 Knee Society Functional Scores</span><span> </span><span><2011 KSFS> (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.016) were found in the PS group. In particular, there w</span><span>ere</span><span> significant differences in advanced activities of the 2011 KSFS among the three groups (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.017). Satisfaction scores showed no difference among the three groups (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.251). On the other hand, WOMAC and expectation scores were significantly better in the PS groups. (</span><i><span>P</span></i><span> </span><span>=</span><span> </span><span>0.003, </span><i><span>P</span></i><span> </span><span>=</span><span> </span><span>0.004). ROM in the MB-PS group (124.0</span><span>°</span><span>) was better than that in FB-PS (119.4</span><span>°</span><span>) and FB-CR (118.9</span><span>°</span><span>) (</span><i><span>P</span></i><span> </span><span>=</span><span> </span><span>0.005). On the other hand, additional surgery was needed in five PS knees.</span><i><span> </span></i><b><span>Conclusion:</span></b><span> </span><span>The PS prostheses had superior 2011 KSFS, expectation scores, WOMAC scores and </span><span>ROM than the CR prostheses. In contrast, the postoperative prosthesis-related</span><span> complication rates were lower with CR prostheses. Further detailed evaluation is necessary to determine whether the characteristics of the different prostheses</span><i><span> </span></i><span>affect PRO.</span>展开更多
文摘We report herein a rare case of lateral parapatellar synovial plica that developed simultaneously in both knees. A 15-year-old competitive soccer player visited our institution with a six-month history of anterolateral pain and catching sensation in both knee joints. On physical examination, he complained of tenderness along the joint line of bilateral patellofemoral joint (PFJ). Visible and palpable popping was observed at the lateral margin of each patella during active knee motion. Magnetic resonance imaging showed obvious synovial soft nodules in the lateral side of the PFJ. On arthroscopy, a yellowish, thick, tongue-shaped tissue extending transversely from the lateral parapatellar synovium was identified in both knees, and parts of this tissue showed avascular hypertrophy. Arthroscopic findings of both knees are almost symmetrical in anatomical location, but no similar in size. After arthroscopic excision, the patient became asymptomatic. At 24-month follow up, he demonstrated full knee function, without evidence of local recurrence.
文摘<b><span>Background:</span></b><span> Patient-reported outcome</span><span> (</span><span>PRO</span><span>) </span><span>ha</span><span>s</span><span> become the focus of increased attention in the assessment of total knee arthroplasty (TKA). The purpose of this study was to investigate whether different prosthesis designs affected postoperative patient-reported performance.</span><i><span> </span></i><b><span>Materials and Methods:</span></b><i><span> </span></i><span>We reviewed 216 patients (234 knees) implanted with the Press-Fit Condylar <pfc> Sigma prosthesis</pfc></span><b><span> </span></b><span>at our institution between January 2009 and December 2011. This study included 76 knees with fixed-bearing cruciate-retaining (FB-CR), 78 knees with fixed-bearing posterior-stabilized (FB-PS), and 80 knees with mobile-bearing posterior-stabilized (MB-PS) designs. The mean follow-up was 8.0 ± 0.74</span><b><span> </span></b><span>years. Preoperative and follow-up ratings according to the 2011 Knee Society Score (2011 KSS), range of motion (ROM), and standing femoro-tibial angle (FTA) were obtained for all patients. Additionally, Western Ontario and McMaster Universities Arthritis Index (WOMAC) scores were collected at last follow-up.</span><i><span> </span></i><b><span>Results:</span></b><span> </span><span>Three separate subscales of the 2011 KSS of the three</span><b><span> </span></b><span>cohorts were significantly improved post-operatively compared to the pre-operative values (</span><i><span>p</span></i><span> </span><span><</span><span> </span><span>0.05), except for expectation scores. At the time of follow-up, significantly higher the 2011 Knee Society Functional Scores</span><span> </span><span><2011 KSFS> (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.016) were found in the PS group. In particular, there w</span><span>ere</span><span> significant differences in advanced activities of the 2011 KSFS among the three groups (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.017). Satisfaction scores showed no difference among the three groups (</span><i><span>P</span></i><i><span> </span></i><span>=</span><span> </span><span>0.251). On the other hand, WOMAC and expectation scores were significantly better in the PS groups. (</span><i><span>P</span></i><span> </span><span>=</span><span> </span><span>0.003, </span><i><span>P</span></i><span> </span><span>=</span><span> </span><span>0.004). ROM in the MB-PS group (124.0</span><span>°</span><span>) was better than that in FB-PS (119.4</span><span>°</span><span>) and FB-CR (118.9</span><span>°</span><span>) (</span><i><span>P</span></i><span> </span><span>=</span><span> </span><span>0.005). On the other hand, additional surgery was needed in five PS knees.</span><i><span> </span></i><b><span>Conclusion:</span></b><span> </span><span>The PS prostheses had superior 2011 KSFS, expectation scores, WOMAC scores and </span><span>ROM than the CR prostheses. In contrast, the postoperative prosthesis-related</span><span> complication rates were lower with CR prostheses. Further detailed evaluation is necessary to determine whether the characteristics of the different prostheses</span><i><span> </span></i><span>affect PRO.</span>
