Influence of Bone Marrow Edema on Medial Unicompartmental Knee Arthroplasty among Patients with Patellofemoral Osteoarthritis

2017 ◽  
Vol 30 (08) ◽  
pp. 816-821 ◽  
Author(s):  
Jiaji Yue ◽  
Xiaojun Ma ◽  
Yaqiang Li ◽  
Yu Wang ◽  
Yuchang Zhu ◽  
...  

AbstractThis study aims to compare clinical outcomes in unicompartmental knee arthroplasty (UKA) patients with or without magnetic resonance imaging (MRI) evidence of bone marrow edema (BME) in the patella and to evaluate the effect of functional outcomes after UKA in patients with patellofemoral osteoarthritis (PF OA). Outcomes of 146 knees in 141 patients who underwent medial UKA were included. According to their preoperative condition of patellofemoral joints, patients were divided into three groups: Group A, non-PF OA (Kellgren–Lawrence [K–L] scale = 0); group B, PF OA without BME (K–L ≥ 1, bone marrow edema pattern [BMEP] = 0); group C, PF OA with BME (K–L ≥ 1, BMEP ≥ 1). Clinical outcomes including visual analog scale (VAS) scores of knee pain, Hospital for Special Surgery (HSS) scores, and range of motions (ROMs) were evaluated and analyzed at the postoperative follow-up of 3 months and 2 years. From our results, BME was highly correlated to poor outcome in patients with UKA. At follow-up of 3 months, BME influenced the clinical outcome of UKA at an early postoperative stage in terms of VAS scores, HSS scores, and ROMs. At the final follow-up of 2 years, the clinical outcome was improved in terms of HSS score, although the anterior knee pain and active ROMs were still worse than that of patients without BME. In conclusion, there was no significant difference in clinical outcomes in patients without BME regardless of PF OA. However, the condition of BME should be taken serious consideration because of its indication of an adverse effect on the outcome after UKA.

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0011
Author(s):  
Yoshiharu Shimozono ◽  
Eoghan Hurley ◽  
John Kennedy

Category: Ankle Introduction/Purpose: Subchondral bone marrow edema (BME) has been associated with articular cartilage loss, with the potential to be a negative prognostic indicator for clinical outcome following microfracture. However, no single study has investigated the influence of BME on clinical outcome following microfracture for osteochondral lesions of the talus (OLT) at mid-term follow-up. The purpose of this study was to clarify the influence of postoperative subchondral BME on the clinical outcome in patients treated with microfracture for OLT at both short- and mid-term. Methods: Patients who underwent microfracture between 2008 and 2013 were assessed at 2- and 4-year postoperative follow-up. BME was evaluated using magnetic resonance imaging (MRI), and the presence of subchondral BME was determined with fat-suppressed T2-weighted sequences. BME was graded on a 0-3 scale based on the relation to total talar volume as follows: 0, no BME; 1, <25% of talar volume; 2, 25%<, >50% of talar volume; 3, >50% of talar vome. Clinical outcomes were evaluated using the Foot and Ankle Outcome Scores (FAOS). The influence of postoperative subchondral BME on the clinical outcomes were evaluated as following; 1) the FAOS between the BME and the no BME groups were compared at 2 and 4 years post surgery, 2) the FAOS based on the BME grades were compared at each time point, and 3) correlation between the FAOS and BME grade was evaluated at each time point. Results: Forty-three (83%) of 52 eligible patients were included. No significant differences were found in FAOS between BME and no BME groups at 2-year follow-up (p=0.109), but there was a significant difference at 4-year follow-up (p = 0.041). A significant difference was found among BME grades at 4-year follow-up (p=0.035) (Table 1). A post hoc analysis showed significant differences between grade 0 and 2, 0 and 3, and 1 and 3 (p=0.041, 0.037 and 0.048, respectively). In addition, at 4-years follow-up, a significant correlation was noted between FAOS and BME grade (r= -0.453, p = 0.003) (Table 1), but not at 2-years (r = -0.212, p = 0.178). Seventy-four percent of patients still had subchondral BME at 4-year follow-up after microfracture for OLT. Conclusion: Patients with the presence of subchondral BME at mid-term follow-up after microfracture for OLT had worse clinical outcomes than those without subchondral BME. In addition, the degree of subchondral BME at mid-term follow-up was correlated with clinical outcome. However, in the short-term follow-up, there were no significant differences in clinical outcomes based on both the presence and degree of BME. The current study suggests that BME at short-term follow-up is a normal physiologic reaction. However, BME at mid-term following microfracture for OLT may be pathological, and is related to poorer clinical outcomes.


2018 ◽  
Vol 46 (10) ◽  
pp. 2503-2508 ◽  
Author(s):  
Yoshiharu Shimozono ◽  
Eoghan T. Hurley ◽  
Youichi Yasui ◽  
Timothy W. Deyer ◽  
John G. Kennedy

Background: Subchondral bone marrow edema (BME) has been associated with articular cartilage loss, with the potential to be a negative prognostic indicator for clinical outcomes after microfracture. However, no single study has investigated the association between BME and clinical outcomes after microfracture for osteochondral lesions of the talus (OLTs) at midterm follow-up. Purpose: To clarify the association between postoperative subchondral BME and clinical outcomes in patients treated with microfracture for OLTs at both short-term and midterm follow-up using a grading system that classified the extent of BME of the talus. Study Design: Cohort study; Level of evidence, 3. Methods: Patients who underwent microfracture between 2008 and 2013 were assessed at 2- and 4-year postoperative follow-up. BME was evaluated using magnetic resonance imaging, and the presence of subchondral BME was determined with fat-suppressed T2-weighted sequences. Clinical outcomes were evaluated using the Foot and Ankle Outcome Score (FAOS). P < .05 was considered to be statistically significant. Results: Forty-three (83%) of 52 eligible patients were included. No significant differences were found in the FAOS between the BME and no BME groups at 2-year follow-up (83.1 ± 6.5 vs 88.6 ± 8.0, respectively; P = .109), but there was a significant difference at 4-year follow-up (77.5 ± 11.1 vs 84.7 ± 8.4, respectively; P = .041). A significant difference was found among BME grades at 4-year follow-up (grade 0: 84.7 ± 7.4, grade 1: 80.1 ± 10.5, grade 2: 74.0 ± 10.3, and grade 3: 67.5 ± 7.1; P = .035). A post hoc analysis showed significant differences between grades 0 and 2, 0 and 3, and 1 and 3 ( P = .041, .037, and .048, respectively). In addition, at 4-year follow-up, a significant correlation was noted between the FAOS and BME grade ( r = −0.453, P = .003) but not at 2-year follow-up ( r = −0.212, P = .178). Seventy-four percent of patients still had subchondral BME at 4-year follow-up after microfracture for OLTs. Conclusion: Patients with subchondral BME at midterm follow-up after microfracture for OLTs had worse clinical outcomes than those without subchondral BME. In addition, the degree of subchondral BME at midterm follow-up was correlated with clinical outcomes. However, at short-term follow-up, there were no significant differences in clinical outcomes based on both the presence and degree of BME, and no correlation was found between clinical outcomes and the degree of BME. The current study suggests that BME at short-term follow-up is a normal physiological reaction. However, BME at midterm follow-up after microfracture for OLTs may be pathological and is associated with poorer clinical outcomes.


2018 ◽  
Vol 40 (1) ◽  
pp. 74-79 ◽  
Author(s):  
Tae Yong Kim ◽  
Seung Hyun Song ◽  
Jong Hun Baek ◽  
Yeok Gu Hwang ◽  
Bi O Jeong

Background: Arthroscopic microfracture can effectively treat osteochondral lesions of the talus (OLTs). However, very few studies have reported on symptomatic improvement duration and time when symptomatic improvement ceases. This study aimed to investigate the clinical outcome changes after arthroscopic microfracture in patients with OLT. Methods: Among patients who underwent arthroscopic microfracture for OLT, 70 patients were available for follow-up for more than 3 years. Of these, 6 patients who showed worsening or no improvement in the 6 months after surgery were excluded, and a total of 64 patients were included in the analysis. To analyze and compare the clinical outcome changes according to time, the visual analog scale (VAS) and American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot scores were evaluated every 3 months up to 1 year postoperatively and every 1 year thereafter. The clinical outcome differences based on the lesion size, lesion location, lesion containment, presence of cyst and bone marrow edema, age, sex, and obesity were analyzed. Results: The preoperative and final follow-up VAS scores significantly improved from 6.2 ± 1.1 to 1.2 ± 1.1 ( P< .05) and the AOFAS score from 63.1 ± 7.3 to 91.0 ± 7.3 ( P< .05). The overall success rate for arthroscopic microfracture in this study was 88.6%. The postoperative VAS and AOFAS scores at 3, 6, 9, 12, 24, and 36 months were 3.7 ± 1.4, 2.5 ± 1.3, 2.0 ± 1.1, 1.6 ± 1.2, 1.2 ± 1.2, and 1.3 ± 1.2 and 74.7 ± 10.3, 80.5 ± 8.9, 84.3 ± 7.4, 88.3 ± 7.3, 91.1 ± 7.2, and 90.8 ± 7.5, respectively, showing significant improvements up to 2 years. After 2 years, the symptoms did not improve but were maintained at a certain level up to 3 years. No clinical outcome differences based on the lesion size, lesion containment, presence of cyst and bone marrow edema, age, sex, and obesity were observed. Conclusion: Symptomatic improvement early after arthroscopic microfracture for OLT was observed continuously for up to 2 years postoperatively. Symptom improvement was maintained without worsening for up to 3 years after surgery. Determining the final outcome of microfracture at least after 2 years would be reasonable. Level of Evidence: Level IV, case series.


Author(s):  
Jung-Won Lim ◽  
Yong-Beom Park ◽  
Dong-Hoon Lee ◽  
Han-Jun Lee

AbstractThis study aimed to evaluate whether manipulation under anesthesia (MUA) affect clinical outcome including range of motion (ROM) and patient satisfaction after total knee arthroplasty (TKA). It is hypothesized that MUA improves clinical outcomes and patient satisfaction after primary TKA. This retrospective study analyzed 97 patients who underwent staged bilateral primary TKA. MUA of knee flexion more than 120 degrees was performed a week after index surgery just before operation of the opposite site. The first knees with MUA were classified as the MUA group and the second knees without MUA as the control group. ROM, Knee Society Knee Score, Knee Society Functional Score, Western Ontario and McMaster Universities (WOMAC) score, and patient satisfaction were assessed. Postoperative flexion was significantly greater in the MUA group during 6 months follow-up (6 weeks: 111.6 vs. 99.8 degrees, p < 0.001; 3 months: 115.9 vs. 110.2 degrees, p = 0.001; 6 months: 120.2 vs. 117.0 degrees, p = 0.019). Clinical outcomes also showed similar results with knee flexion during 2 years follow-up. Patient satisfaction was significantly high in the MUA group during 12 months (3 months: 80.2 vs. 71.5, p < 0.001; 6 months: 85.8 vs. 79.8, p < 0.001; 12 months: 86.1 vs. 83.9, p < 0.001; 24 months: 86.6 vs. 85.5, p = 0.013). MUA yielded improvement of clinical outcomes including ROM, and patient satisfaction, especially in the early period after TKA. MUA in the first knee could be taken into account to obtain early recovery and to improve patient satisfaction in staged bilateral TKA.


2019 ◽  
Vol 47 (2) ◽  
pp. 408-419 ◽  
Author(s):  
Masayoshi Saito ◽  
Hajime Utsunomiya ◽  
Akihisa Hatakeyama ◽  
Hirotaka Nakashima ◽  
Haruki Nishimura ◽  
...  

Background: There is a dearth of knowledge regarding the correlation between femoroacetabular impingement (FAI) and osteitis pubis (OP) among symptomatic soccer players. Purpose: To elucidate whether arthroscopic FAI correction is effective for young competitive soccer players with FAI combined with OP or perisymphyseal pubic bone marrow edema (BME). Study Design: Case series; Level of evidence, 4. Methods: A total of 577 consecutive patients who underwent arthroscopic FAI correction were retrospectively reviewed with a minimum 2-year follow-up. Competitive soccer players who were professional, college, and high school athletes were included. The authors assessed the modified Harris Hip Score and Nonarthritic Hip Score preoperatively and at 6 months, 1 year, and 2 years after surgery. In addition, players were divided into groups according to radiographic evidence of OP and BME (2 groups each). Clinical outcomes, return to play, and radiographic assessments were compared between groups. Results: Twenty-eight hips met the inclusion criteria. The median modified Harris Hip Score significantly improved after hip arthroscopy (81.4, preoperatively; 95.7 at 6 months, P = .0065; 100 at 1 year, P = .0098; 100 at 2 years, P = .013). The median Nonarthritic Hip Score also significantly improved (75.0, preoperatively; 96.3 at 6 months, P = .015; 98.8 at 1 year, P = .0029; 100 at 2 years, P = .015). Furthermore, 92.0% of players returned to play soccer at the same or higher level of competition at a median 5.5 months (range, 4-15 months); 67.8% had radiological confirmation of OP; and 35.7% had pubic BME. The alpha angle was significantly higher in pubic BME group than the no–pubic BME group (64.8° vs 59.2°, P = .027), although there was no significant difference between the OP and no-OP groups. The prevalence of tenderness of the pubic symphysis significantly decreased preoperatively (32.1%) to postoperatively (3.6%). Magnetic resonance imaging findings confirmed that pubic BME disappeared in all players at a median 11 months (range, 6-36) after initial surgery. Conclusions: Arthroscopic management for FAI provides favorable clinical outcomes, a high rate of return to sports, and, when present, resolution of pubic BME among competitive soccer players.


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