CONCOMITANT MENISCECTOMY RESULTS IN REDUCED RETURN TO SPORT COMPARED TO MENISCUS REPAIR IN PRIMARY PEDIATRIC ACL RECONSTRUCTION

Background: Meniscus repair has demonstrated favorable outcomes when performed with ACL reconstruction (ACLR). However, literature comparing meniscal tear patterns, treatments, and outcomes among pediatric patients remains limited. Purpose: The aim of this study is to evaluate the impact of surgical technique on patient outcomes, in primary pediatric ACLR with associated meniscal pathology. We secondarily examined patient factors and tear characteristics on these outcomes. Methods: This is a retrospective cohort study from 2014-2016 of pediatric ACL reconstruction patients who underwent concurrent surgical management of a meniscus tear. Predictors included patient demographics, injury mechanism, meniscal tear characteristics and surgical treatments. Clinical outcomes including return to sport (RTS), meniscus or ACL graft re-tear, and return to surgery were assessed via patient cross-sectional survey. Criteria for RTS were based on standardized postoperative rehabilitation protocols. Univariate and multivariate analyses were used to examine the relationship between studied predictors with the likelihood of RTS and other outcomes. Results: Inclusion criteria were met by 123 patients with an average follow-up time of 2.5 ± 0.7 years. RTS was achieved by 80.8% of patients while 17.1% of patients had a subsequent knee surgery within the studied timeframe. Univariate analysis of factors associated with successful RTS are shown in Table 1. While patients failing to RTS were shown to have delayed surgical intervention in univariate testing, multivariate analysis identified that patients who underwent meniscectomy were less likely to RTS than those who underwent meniscal repair (OR=2.690, 95% CI 1.044-6.930, p=0.040). Patients with an initial contact mechanism of injury were also demonstrated to be more likely to return to the OR for any reason (OR=13.443, CI 1.736-104.108, p=0.013) in multivariate modeling. Conclusion: In one of the few large cohorts of pediatric ACL reconstructions with concomitant meniscus surgery, this study adds to our understanding of a potentially modifiable factor (meniscus repair) in the surgical treatment of ACL injury with concaminant meniscus tear. Although no differences were seen in rates of meniscus or graft re-tear when comparing treatments, patients who underwent meniscal repair were more likely to return to sport than patients treated with meniscectomy. While these findings may reflect the quality of the torn meniscal tissue and severity of injury, it further emphasizes the importance of meniscal preservation not just for long term joint quality, but also for short term function in active pediatric patients. [Table: see text]

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MENISCUS REPAIR VERSUS DEBRIDEMENT FOR MENISCAL TEARS IN PEDIATRIC PATIENTS – PREDICTORS FOR TREATMENT BASED ON DEMOGRAPHICS

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119s00169 ◽

2019 ◽

Vol 7 (3_suppl) ◽

pp. 2325967119S0016

Author(s):

Lauren Agatstein ◽

Alton W. Skaggs ◽

Matthew J. Brown ◽

Nicole Friel ◽

Brian Haus

Keyword(s):

Pediatric Patients ◽

Private Insurance ◽

Meniscal Repair ◽

Meniscus Repair ◽

Meniscus Tear ◽

Children's Hospitals ◽

Children's Hospital ◽

Children’S Hospitals ◽

Meniscus Tears ◽

Children’S Hospital

BACKGROUND: Pediatric and adolescent patients with meniscus tears have a relatively high rate of healing after meniscus repair – up to greater than 80% in the literature. Despite this fact, many patients undergo meniscus debridement for treatment of their meniscus tears. In this study, we investigated the demographic factors predictive of whether a pediatric patient would receive a meniscal repair or a meniscal debridement for their meniscal tear. METHODS: The California statewide ambulatory surgery database (OSHPD) was queried for all patients under 18 years old who underwent meniscus debridement or meniscus repair from 2008-2016. The effect of age, hospital setting (adult versus pediatric hospital), injury chronicity, gender, insurance type, race, and year of service was assessed using logistic regression. RESULTS: A total of 13,906 pediatric patients had meniscal surgery during the timeframe. 83% (11,561/13,906) underwent meniscal debridement and 17% (2,345/13,906) underwent meniscal repair. Age, hospital type, nature of injury, gender, private insurance, being Hispanic, and year of service were statistically significant in predicting the odds of having meniscus repair versus meniscus debridement. Surgery at a children’s hospital increases the odds of having meniscus repair (p < 0.001). Of the 82.6% of pediatric patients (11,491/13,906) treated at non-children’s hospitals, 16% (1839) had repair and 84% underwent debridement (9,652). Of the 17.4% (2,415) treated at children’s hospitals, 21% (506) had repair and 79% (1,909) underwent debridement. As patients age, the odds of receiving a meniscus repair decrease (p < 0.001). Acute meniscus injury (p < 0.001) or private insurance (p < 0.05) increase the odds of having meniscus repair. However, females (p < 0.05) and Hispanics (p < 0.01) had decreased odds of having meniscus repair. As time between injury and surgery progressed, the odds of having meniscus repair versus meniscus debridement increased (p < 0.001). CONCLUSIONS: There is increasing evidence that pediatric patients have successful outcomes after meniscal repair surgery. The results of this study demonstrate that the majority of pediatric patients with meniscus tears undergo a meniscal debridement rather than a repair. Treatment at a children’s hospital, private insurance, and a short time frame between injury and surgery were positive predictors of meniscus repair over debridement. The results of the study may help inform patients, families, and referring physicians about what type of treatment a patient may receive for a meniscus tear, based on their demographic profile.

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The predictive factors that are associated with the number of sutures used during meniscal repair

10.21203/rs.3.rs-70748/v1 ◽

2020 ◽

Author(s):

Xiaoxiao Song ◽

Dongyang Chen ◽

Qi Xinsheng ◽

Qing Jiang ◽

Caiwei Xia

Keyword(s):

Cruciate Ligament ◽

Demographic Data ◽

Meniscal Tear ◽

Univariate Analysis ◽

Meniscal Repair ◽

Meniscus Repair ◽

Meniscus Tear ◽

Chi Square ◽

Level Of Evidence ◽

Surgical Data

Abstract PurposeTo investigate factors associated with the consumption of a large number of sutures during arthroscopic meniscus repair procedures.MethodsAll patients who received meniscal repair, with or without concomitant anterior cruciate ligament (ACL) reconstruction, in our hospital from January 2015 to December 2019 were included in the current study. Demographic data (sex, age, body mass index (BMI), and injury-to-surgery interval) and surgical data (the site of the tear, side of the meniscus, presence of an ACL rupture or not and the number of sutures) were retrospectively collected from our medical records. The number of sutures was divided into two groups (1–2 sutures versus > 2 sutures). The stitching process was implemented through an all-inside technique using a meniscal repair device (Fast-Fix; Smith & Nephew). According to the length and stability of the meniscal tear, one to seven sutures were used. Univariate analysis consisted of chi-square tests. Multivariate logistic regression was then performed to adjust for confounding factors.ResultsA total of 242 patients, including 168 males and 57 females, was finally included. In the univariate analysis, we found that those patients who underwent meniscus repair within one month after meniscus tear were more likely to need fewer sutures than those who underwent surgery more than one month after injury (70/110 versus 59/115, p = 0.062). In total, 75/109 (68.8%) lateral meniscal tears were repaired with fewer sutures than medial (34/72, 47.2%) and bilateral meniscus injuries (20/44, 45.4%; p = 0.003). In the multivariate analysis, we found that the duration of injury (OR, 2.06; 95% CI, 1.16–3.64, p = 0.013), presence of an ACL injury (OR, 3.76; 95% CI, 1.97–7.21, p < 0.001) and the side of the meniscus (OR, 0.31; 95% CI, 0.14–0.65, p = 0.002) were associated with the number of sutures used during meniscal repair procedures.ConclusionsPatients who underwent meniscal repair within one month after meniscus tear, especially lateral menisci tears, were more likely to need fewer sutures.Study DesignCase-control study; level of evidence, 3.

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The predictive factors that are associated with the number of sutures used during meniscal repair

BMC Musculoskeletal Disorders ◽

10.1186/s12891-020-03911-0 ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Xiaoxiao Song ◽

Dongyang Chen ◽

Xinsheng Qi ◽

Qing Jiang ◽

Caiwei Xia

Keyword(s):

Cruciate Ligament ◽

Demographic Data ◽

Meniscal Tear ◽

Univariate Analysis ◽

Meniscal Repair ◽

Meniscus Repair ◽

Meniscus Tear ◽

Chi Square ◽

Level Of Evidence ◽

Surgical Data

Abstract Purpose To investigate factors associated with the consumption of a large number of sutures during arthroscopic meniscus repair procedures. Methods All patients who received meniscal repair, with or without concomitant anterior cruciate ligament (ACL) reconstruction, in our hospital from January 2015 to December 2019 were included in the current study. Demographic data (sex, age, body mass index (BMI), and injury-to-surgery interval) and surgical data (the site of the tear, side of the meniscus, presence of an ACL rupture or not and the number of sutures) were retrospectively collected from our medical records. The number of sutures was divided into two groups (1–2 sutures versus > 2 sutures). The stitching process was implemented through an all-inside technique using a meniscal repair device (Fast-Fix; Smith & Nephew). According to the length and stability of the meniscal tear, one to seven sutures were used. Univariate analysis consisted of chi-square tests. Multivariate logistic regression was then performed to adjust for confounding factors. Results A total of 242 patients, including 168 males and 57 females, was finally included. In the univariate analysis, we found that those patients who underwent meniscus repair within one month after meniscus tear were more likely to need fewer sutures than those who underwent surgery more than one month after injury (70/110 versus 59/115, p=0.062). In total, 75/109 (68.8%) lateral meniscal tears were repaired with fewer sutures than medial (34/72, 47.2%) and bilateral meniscus injuries (20/44, 45.4%; p=0.003). In the multivariate analysis, we found that the duration of injury (OR, 2.06; 95% CI, 1.16–3.64, p=0.013), presence of an ACL injury (OR, 3.76; 95% CI, 1.97–7.21, p< 0.001) and the side of the meniscus (OR, 0.31; 95% CI, 0.14–0.65, p=0.002) were associated with the number of sutures used during meniscal repair procedures. Conclusions Patients who underwent meniscal repair within one month after meniscus tear, especially lateral menisci tears, were more likely to need fewer sutures. Study design Case-control study; level of evidence, 3.

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Clinical and functional outcomes of ACL reconstruction with tibial attachment preserving quadrupled hamstring graft

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967120s00550 ◽

2020 ◽

Vol 8 (9_suppl7) ◽

pp. 2325967120S0055

Author(s):

Shaival Dalal ◽

Ghislain Aminake ◽

Randy Guro ◽

Amit Chandratreya ◽

Rahul Kotwal

Keyword(s):

Acl Reconstruction ◽

Functional Outcomes ◽

Graft Failure ◽

Meniscal Tear ◽

Meniscal Repair ◽

Meniscus Tear ◽

Hamstring Graft ◽

Pull Out ◽

Graft Diameter ◽

Hamstring Grafts

Introduction: Recent literature supports the preservation of tibial attachment of hamstring grafts to enhance ‘‘ligamentization’’ process and prevent the potential problems of free graft such as pull-out or rupture in the early post-operative period. Another factor that has gained attention in recent days is graft diameter, which can be variable and is thought to be a factor contributing to graft failure in biomechanical and clinical studies. Numerous studies have shown conflicting evidence of graft diameter directly influencing the graft failure. Hypotheses: The aim of this study is to present our results of ACL reconstruction with preservation of the tibial attachment of the hamstring grafts along with loop-stitched quadrupled hamstring grafts fixed with Endobutton on the femoral side and an interference screw and staple on the tibial side. Methods: Prospective single-surgeon case-series evaluating patients undergoing surgery by this technique. Patients were followed up clinically and using PROMS from NLR with EQ-5D, KOOS, IKDC and Tegner scores. Paired two-tailed student t-tests were used to assess significance. Results: 45 patients had associated meniscal tear with 73.3 % undergoing repair. 3 cases (4.6 %) returned to theatre including, MUA for arthrofibrosis (n=1) and meniscal repair for recurrent medial meniscus tear (n=2). Incidence of graft re-rupture was seen in 1 patient. At a mean follow-up of 2.3 years, 80% (n=51) had complete peri-operative PROMS scores. Mean peri-operative EQ-5D VAS, EQ-5D Index, KOOS, IKDC and Tegner activity scores showed significant improvement (p<0.001). Multiple regression analysis does not find any correlation between PROMS and graft diameter. Conclusion: ACL reconstruction using tibial attachment preserving hamstring graft is a simple and , reproducible, and cost-effective technique that gives consistent clinical and functional outcomes, irrespective of the graft diameter . The natural tibial side insertion provides secure fixation and adds biology to the anatomic reconstruction, possibly reducing the re-rupture and failure rate.

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Which factors are associated with the prevalence of meniscal repair?

BMC Musculoskeletal Disorders ◽

10.1186/s12891-021-04107-w ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Xiaoxiao Song ◽

Dongyang Chen ◽

Xinsheng Qi ◽

Qing Jiang ◽

Caiwei Xia

Keyword(s):

Cruciate Ligament ◽

Demographic Data ◽

Meniscal Tear ◽

Univariate Analysis ◽

Lateral Meniscus ◽

Meniscal Repair ◽

Acl Injury ◽

Partial Meniscectomy ◽

Meniscus Tear ◽

Confounding Factors

Abstract Purpose To investigate the potential factors associated with the prevalence of meniscal repair Methods Patients who received partial meniscectomy or meniscal repair in our institution from Jan 2015 to Dec 2019 were included in current study. The inclusion criteria were (1) meniscus tear treated using meniscectomy or repair, (2) with or without concomitant anterior cruciate ligament reconstruction, (3) not multiligamentous injury. Demographic data, including sex, age, body mass index (BMI), injury-to-surgery interval and intra-articular factors such as the location of injury, medial or lateral, ACL rupture or not and the option of procedure (partial meniscectomy or repair) were documented from medical records. Univariate analysis consisted of chi-square. Multivariate logistic regression was then performed to adjust for confounding factors. Results 592 patients including 399 males and 193 females with a mean age of 28.7 years (range from 10 to 75 years) were included in current study. In the univariate analysis, male (p = 0.002), patients aged 40 years or younger (p < 0.001), increased weight (p = 0.010), Posterior meniscus torn (0.011), concurrent ACL ruputure (p < 0.001), lateral meniscus (p = 0.039) and early surgery (p < 0.001) were all associated with the prevalence of meniscal repair. However, After adjusting for confounding factors, we found that age (OR, 0.35; 95% CI, 0.17 - 0.68, p = 0.002), ACL injury (OR, 3.76; 95% CI, 1.97 – 7.21, p < 0.001), side of menisci (OR, 3.29; 95% CI, 1.43 – 7.55, p = 0.005), site of tear (OR, 0.15; 95% CI, 0.07 – 0.32, p < 0.001), and duration of injury (OR, 0.46; 95% CI, 0.28 – 0.82, p = 0.008) were associated with the prevalence of meniscus repair. Conclusions Meniscal tear in aged patients especially those with concomitant ACL injury is likely to be repaired. Additionally, in order to increase the prevalence of repair and slow down progression of OA, the surgical procedure should be performed within two weeks after meniscus tear especially when the tear is located at lateral meniscal posterior. Study design Case-control study; level of evidence, 3.

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Predicting Reparability of Meniscal Tears Pre-Operatively Using 3-Tesla MRI (111)

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967121s00261 ◽

2021 ◽

Vol 9 (10_suppl5) ◽

pp. 2325967121S0026

Author(s):

Thomas Kremen ◽

Ignacio Garcia-Mansilla ◽

Jason Strawbridge ◽

Grant Schroeder ◽

Kambiz Motamedi ◽

...

Keyword(s):

Predictive Accuracy ◽

Statistical Significance ◽

Meniscal Tear ◽

Meniscal Repair ◽

Partial Meniscectomy ◽

3 Tesla ◽

Meniscus Tear ◽

Predictive Values ◽

3T Mri ◽

Mri Characteristics

Objectives: The ability to predict meniscus tear reparability based on pre-operative MRI is desirable for pre-operative patient counseling. However, the accuracy of MRI-based predictive methods varies widely within the orthopedic and radiology literature. We hypothesized that modern higher resolution 3-Tesla (T) MRI improves the accuracy of predicting reparability compared to prior investigations using 1.5T MRI assessments. Methods: We identified 44 patients (age 16 to 40 years) who were known to have undergone arthroscopic meniscal repair at our institution between the dates of January 1, 2013 and June 1, 2019. The MRI characteristics of this meniscus repair group were then compared to 43 age- and sex-matched patients who underwent arthroscopic partial meniscectomy during the same time period. 3T MRI images from the repair (Figure 1A) and the partial meniscectomy (Figure 1B) groups were all obtained pre-operatively at the author’s institution. Images from all 87 patients were independently reviewed by two fellowship-trained musculoskeletal radiologists and one orthopedic surgery fellow specializing in sports medicine. Each examiner was blinded with regard to meniscus tear treatment (repair versus partial meniscectomy). Meniscal tear MRI characteristics were evaluated based on established arthroscopic criteria including tear length greater than 10 mm, tear location within 3 mm of the menisco-synovial junction, tear greater than 50% thickness, and the presence of an intact inner meniscal fragment. We then analyzed the predictive accuracy and interrater reliability of this method. Results: With regards to accurately predicting meniscal reparability using the established criteria, the three MRI examiners accurately predicted repair 58% (orthopedist), 60% (radiologist 1), and 63% (radiologist 2) of the time, with respective positive predictive values of 60%, 62%, and 70%. The three examiners agreed upon tear reparability (i.e., a score of 4 versus not 4) only 41% of the time (κ = 0.173, p = .005). For 2 of the examiners (orthopedist and radiologist), none of the individual criteria were significantly predictive of tear reparability. For the 3rd examiner (radiologist), tear location within 3mm of the meniscosynovial junction was the most predictive individual criterion and the only criteria that reached statistical significance (OR = 9.83, p = .04). Conclusions: Although 3T MRI is higher resolution than 1.5T MRI, 3T MR imaging assessments performed by experienced examiners demonstrated a poor ability to predict the reparability of meniscus tears based on the application of previously established arthroscopic criteria. In addition, inter-observer reliability in this setting was also poor. Arthroscopic inspection remains the gold standard for the determination of meniscus tear reparability.

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The effects of partial meniscectomy and meniscal repair on the knee proprioception and function

Journal of Orthopaedic Surgery ◽

10.1177/2309499019894915 ◽

2020 ◽

Vol 28 (1) ◽

pp. 230949901989491 ◽

Cited By ~ 2

Author(s):

Betül Başar ◽

Gökhan Başar ◽

Ahmet Aybar ◽

Akif Kurtan ◽

Hakan Başar

Keyword(s):

Acl Reconstruction ◽

Meniscal Tear ◽

Meniscal Repair ◽

Partial Meniscectomy ◽

Acl Rupture ◽

Knee Motion ◽

Female Patients ◽

Group 2 ◽

And Function ◽

Group 1

Purpose: Aim of our study was to compare the effects of partial meniscectomy and meniscus repair on knee proprioception and function. Methods: The study included 46 patients with clinical and radiological diagnosis of meniscal tear and accompanying anterior cruciate ligament (ACL) rupture. The patients were evaluated under two groups: group 1: partial meniscectomy and ACL reconstruction, and group 2: meniscal repair and ACL reconstruction. Proprioceptive and functional evaluation of all patients was performed prior to surgery and on postoperative 12th month. Results: Group 1 consists of 18 male and 1 female patients with an average age of 28.78 ± 3.50. Group 2 consists of 23 male and 4 female patients with an average age of 27.14 ± 3.65. Preoperative evaluation revealed significant differences in knee joint position sense values on wide range of knee motion (15°, 30°, 45°, 60°, and 75°) in both groups. The statistically significant difference was observed in only the range of knee motion of 60° in patients underwent meniscal repair (group 2), whereas in the range of knee motion of 45°, 60°, and 75° in patients underwent partial meniscectomy (group 1) at 12th-month control. According to Lysholm knee scoring system, significantly better results were achieved with meniscal repair compared to the partial meniscectomy at 12th-month control. Conclusion: In case of ACL rupture accompanied by meniscal tear, the meniscal repair should be sutured, if possible, in order to obtain better results in terms of knee function and proprioception.

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Predictors of Radiographic Osteoarthritis 2-3 Years after ACL Reconstruction: Data from MOON Onsite Nested Cohort

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119s00348 ◽

2019 ◽

Vol 7 (7_suppl5) ◽

pp. 2325967119S0034

Author(s):

Morgan H. Jones ◽

Sameer R. Oak ◽

Jack T. Andrish ◽

Robert H. Brophy ◽

Charles L. Cox ◽

...

Keyword(s):

Acl Reconstruction ◽

Cruciate Ligament ◽

Meniscal Tear ◽

Meniscal Repair ◽

Cartilage Lesion ◽

Partial Meniscectomy ◽

Medial Compartment ◽

Acl Tear ◽

Increased Risk ◽

And Cartilage

Objectives: Multiple studies have shown patients are susceptible to post-traumatic osteoarthritis (PTOA) after anterior cruciate ligament (ACL) injury even with ACL reconstruction (ACLR). Prospective studies using multivariate analysis to identify risk factors for PTOA are lacking. This study aims to identify baseline predictors of radiographic PT OA after ACLR at an early time point and hypothesizes that meniscal injury and cartilage lesions will be associated with worse radiographic OA using the Osteoarthritis Research Society International (OARSI) atlas criteria. Methods: 421 patients who underwent ACLR returned onsite for standardized posteroanterior metatarsophalangeal radiographs a minimum of 2 years after surgery. At baseline, demographics, graft type, meniscal status/treatment, and cartilage status were collected. OARSI atlas criteria were used to grade all knee radiographs. Multivariable ordinal regression models identified baseline predictors of radiographic OARSI grades at follow-up. Results: The mean age was 19.8 years with 51.3% females. Higher age (odds ratio (OR) 1.06) and BMI (OR 1.05) were statistically significantly associated with higher OARSI grade in the medial compartment. Patients with a meniscal repair and a partial meniscectomy had statistically significantly higher OARSI grades in the medial compartment (meniscal repair OR 1.92 and meniscectomy OR 2.11) and in the lateral compartment (meniscal repair OR 1.96 and meniscectomy OR 2.97). Graft type, cartilage lesion, sex, and Marx activity scales had no significant association with OARSI grade. Conclusion: Older patients with a higher BMI who have an ACL tear with concurrent meniscal tear requiring partial meniscectomy or meniscal repair should be advised of their increased risk of developing radiographic OA. Alternatively, patients with an ACL tear with an articular cartilage lesion can be reassured that they are not at increased risk of developing radiographic knee OA at 2-3 years following ACLR.

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Meniscal Repair with Concurrent Anterior Cruciate Ligament Reconstruction: Is ACL Graft Choice Predictive of Meniscal Repair Success?

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119s00359 ◽

2019 ◽

Vol 7 (7_suppl5) ◽

pp. 2325967119S0035

Author(s):

Hytham S. Salem ◽

Laura J. Huston ◽

Alex Zajichek ◽

Michelle Lora Wolcott ◽

Eric C. McCarty ◽

...

Keyword(s):

Anterior Cruciate Ligament ◽

Acl Reconstruction ◽

Cruciate Ligament ◽

Meniscal Tear ◽

Meniscal Repair ◽

Acl Graft ◽

Baseline Activity ◽

Graft Choice ◽

Significant Difference ◽

Anterior Cruciate

Objectives: The success rate of meniscal repair is known to increase with concurrent anterior cruciate ligament (ACL) reconstruction. However, the influence of ACL graft choice has not been described. The current study examines the effect of ACL graft choice on the outcome of meniscal repair performed in conjunction with ACL reconstruction (ACLR). Methods: Patients who underwent meniscal repair with concurrent primary ACLR were identified from a longitudinal, prospective cohort. Patient demographics and subjective outcome measures including the International Knee Documentation Committee (IKDC), Knee injury and Osteoarthritis Outcome Score (KOOS), and Marx activity rating scale were collected preoperatively. Arthroscopic assessment of meniscal tear characteristics and associated repair technique were recorded intraoperatively. Patients with subsequent repair failure, defined as any subsequent surgical procedure addressing the meniscus repaired at index surgery, were identified and operative notes were obtained in order to accurately classify pathology and treatment. A logistic regression model was built to assess the association of patient specific factors, ACL graft, baseline Marx activity level and meniscal tear laterality with the occurrence of repair failure at 6-year follow-up. Results: A total of 646 patients underwent ACLR with concurrent meniscal repair. Bone-patellar tendon-bone (BTB) and soft tissue (ST) autograft were used in 55.7% and 33.9% of cases, respectively, while allografts were utilized in the remaining cases. Table 1 summarizes the univariate analysis of each baseline variable. A total of 101 patients (15.6%) required subsequent surgery on the meniscus repaired at index surgery, including 89 meniscectomies (87 partial, 2 subtotal), 11 revision meniscal repairs, and 1 meniscus allograft transplantation. No statistically significant difference in meniscal repair failure rate was observed based on patient age, sex, BMI or smoking status. The odds of meniscal repair failure within 6 years of surgery for patients with only a lateral meniscal repair are 68% less than those with only a medial meniscal repair (CI: 41%, 83%; p<0.001). There is a statistically significant relationship between baseline Marx activity and the risk of subsequent meniscal repair, though it is nonlinear—patients with low or high baseline activity are at the highest risk of meniscal repair failure (CI: 1.05,1.31; p=0.004, Figure 1). The estimated odds of meniscal repair failure for BTB allograft, ST allograft, and ST autograft were 2.78 (CI: 0.84,9.19; p=0.09), 2.29 (CI: 0.97,5.45; p=0.06), and 1.42 (CI:0.87,2.32; p=0.16) times that of BTB autograft, respectively, although none proved statistically significant. Meniscal repair failure is associated with significantly lower 6-year scores for all KOOS components and the IKDC (p<0.001). However, there was no significant difference in MARX activity at 6-years (p=0.27). Conclusion: In the setting of primary ACLR, the risk of meniscal repair failure is increased with medial versus lateral meniscal repair. Patients with low or high baseline activity levels are also at an increased risk. ACL graft choice seems to have an effect on meniscal repair failure that approaches but does not reach statistical significance. A larger sample size may be required to accept the null hypothesis. [Table: see text][Figure: see text]

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INCONSISTENT 6-MONTH FUNCTION AND ISOKINETIC TEST RESULTS FOLLOWING ACL RECONSTRUCTION IN A GROUP OF SKELETALLY IMMATURE PEDIATRIC PATIENTS

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967119s00101 ◽

2019 ◽

Vol 7 (3_suppl) ◽

pp. 2325967119S0010

Author(s):

Brian T. Samuelsen ◽

Heath P. Melugin ◽

Mario Hevesi ◽

Bruce A. Levy ◽

Diane L. Dahm ◽

...

Keyword(s):

Acl Reconstruction ◽

Nerve Block ◽

Pediatric Patients ◽

Cartilage Damage ◽

Meniscal Tear ◽

Univariate Analysis ◽

Test Results ◽

Open Physes ◽

Factors Associated ◽

Isokinetic Test

Purpose: The goal of this study was to evaluate patient and surgical factors predictive of excellent functional and isokinetic test results 6-months following anterior cruciate ligament (ACL) reconstruction in a group of pediatric patients with open physes. Methods: We retrospectively reviewed the records of all patients 14 years of age or younger that underwent ACL reconstruction from 2000 to 2015. An excellent 6-month outcome was defined as greater than 85% in isokinetic strength and greater than 90% in functional tests when compared to the non-operative extremity. We then utilized univariate and multivariate statistical models to identify patient and/or surgical factors associated with excellent 6-month outcomes. Results: Eighty-six patients (46 male, 42 female) with open physes on preoperative radiographs were included in the study, with a mean age of 13.6 (range, 8.4-14.9), body mass index (BMI) of 22.1 (range, 15.6-36.0), Tegner activity score of 8.8 (6.0-9.0). Thirty-four patients (40%) met the criteria for the excellent 6-month group, which left 52 (60%) in the delayed 6-month group. In univariate analysis, no single preoperative factor correlated with excellent 6-month outcome. The two groups were statistically similar in terms of age, BMI, time to surgery, preoperative arc of motion, presence of concomitant meniscal tear, cartilage damage, graft size, use of a nerve block or tourniquet, operative time, and tourniquet time. Use of a nerve block trended towards delayed outcomes (p = 0.051). Conclusion: Children undergoing ACL reconstruction only have a 40% chance of achieving an excellent rehabilitation result at 6 months. We found no statistically significant patient or surgical characteristics that could predict this outcome. Utilizing a nerve block is a factor which will need to be further evaluated. Significance: Studies in the adult population have identified preoperative patient and surgical factors associated with excellent 6-month isokinetic and functional test results. This pediatric cohort did not find similar results as many of these children were young, healthy and fit. However, the variability of the outcome casts doubts on applying adult rehabilitation protocols to children.

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