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Class I Obesity Delays Achievement of Patient-Acceptable Symptom State but not Minimum Clinically Important Difference or Substantial Clinical Benefit After Primary Hip Arthroscopy for Femoroacetabular Impingement Syndrome

Shankar, Dhruv S; Bi, Andrew S; Lan, Rae; Buzin, Scott; Youm, Thomas
PURPOSE/OBJECTIVE:The aim of our study was to identify differences in the time taken to achieve the minimum clinically important difference (MCID), substantial clinical benefit (SCB), and patient-acceptable symptom state (PASS) following primary hip arthroscopy for the treatment of femoroacetabular impingement syndrome (FAIS) among patients of different body mass index (BMI) categories. METHODS:We conducted a retrospective comparative study of hip arthroscopy patients with minimum 2-year follow-up. BMI categories were defined as normal (18.5 ≤ BMI < 25.0), overweight (25.0 ≤ BMI <30.0), or class I obese (30.0≤BMI<35.0). All subjects completed the modified Harris Hip Score (mHHS) prior to surgery and at 6 months, 1 year, and 2 years postoperative. MCID and SCB cutoffs were defined as pre-to-postoperative increases in mHHS by ≥8.2 and ≥19.8, respectively. PASS cutoff was set at postoperative mHHS ≥74. Time to achievement of each milestone was compared using the interval-censored EMICM algorithm. The effect of BMI was adjusted for age and sex using an interval-censored proportional hazards model. RESULTS:285 patients were included in the analysis: 150 (52.6%) normal BMI, 99 (34.7%) overweight, and 36 (12.6%) obese. Obese patients had lower mHHS at baseline (P = .006) and at 2-year follow-up (P = .008). There were no significant intergroup differences in time to achievement for MCID (P = .92) or SCB (P = .69), but obese patients had longer time to PASS than normal BMI patients (P = .047). Multivariable analysis found obesity to be predictive of longer time to PASS (HR = .55; P = .007) but not MCID (HR = 0.91; P = .68) or SCB (HR = 1.06; P = .30). CONCLUSIONS:Class I obesity is associated with delays in achieving a literature-defined PASS threshold after primary hip arthroscopy for FAIS. However, future research should consider incorporating PASS anchor questions to determine whether obesity truly carries a risk of delayed achievement of a satisfactory state of health as it pertains to the hip. LEVEL OF EVIDENCE/METHODS:III, retrospective comparative study.
PMID: 36809817
ISSN: 1526-3231
CID: 5433872

Despite Equivalent Clinical Outcomes, Patients Report Less Satisfaction With Telerehabilitation Versus Standard In-Office Rehabilitation After Arthroscopic Meniscectomy: A Randomized Controlled Trial

Mojica, Edward S.; Vasavada, Kinjal; Hurley, Eoghan T.; Lin, Charles C.; Buzin, Scott; Gonzalez-Lomas, Guillem; Alaia, Michael J.; Strauss, Eric J.; Jazrawi, Laith M.; Campbell, Kirk A.
Purpose: To evaluate functional outcomes and satisfaction in patients who underwent telerehabilitation (telerehab) compared with in-person rehabilitation after arthroscopic meniscectomy. Methods: A randomized-controlled trial was conducted including patients scheduled to undergo arthroscopic meniscectomy for meniscal injury by 1 of 5 fellowship-trained sports medicine surgeons between September 2020 and October 2021. Patients were randomized to receive telerehab, defined as exercises and stretches provided by trained physical therapists over a synchronous face-to-face video visit or in-person rehabilitation for their postoperative course. International Knee Documentation Committee Subjective Knee Form (IKDC) score and satisfaction metrics were collected at baseline and 3 months postoperatively. Results: Analysis was conducted on 60 patients with 3-month follow-up outcomes. There were no significant differences in IKDC scores between groups at baseline (P =.211) and 3 months"™ postoperatively (P =.065). Patients were more likely to report being satisfied with their rehabilitation group 73% vs. 100% (P =.044) if there were in the in-person group. Satisfaction differed significantly between the 2 groups at the end of their rehabilitation course, and only 64% of those in the telerehab group would elect to undergo telerehab again for future indications. Furthermore, they believed that future rehabilitation would benefit from a hybrid model. Conclusions: Telerehab showed no difference versus traditional in-person rehabilitation in terms of functional outcomes up to 3 months after arthroscopic meniscectomy. However, patients were less satisfied with telerehab. Level of Evidence: I, randomized controlled trial.
ISSN: 2666-061x
CID: 5425962

Poorer functional Outcomes in Patients with Multi-Ligamentous Knee Injury with Concomitant Patellar Tendon Ruptures at 5 years Follow-Up

Mojica, Edward S; Bi, Andrew S; Vasavada, Kinjal; Moran, Jay; Buzin, Scott; Kahan, Joseph; Alaia, Erin F; Jazrawi, Laith M; Medvecky, Michael J; Alaia, Michael J
PURPOSE/OBJECTIVE:Multi-ligamentous knee injuries (MLKIs) are high-energy injuries that may infrequently present with concomitant patellar tendon rupture. There is limited information in the literature regarding these rare presentations, with even less information regarding clinical outcomes. Using propensity-score matching, the purpose of this study was to compare the outcomes of MLKIs with and without patellar tendon ruptures and to investigate the overall predictors of these outcomes. METHODS:Twelve patients who underwent surgical repair for combined MLKI and patellar tendon rupture from 2011 to 2020 with minimum 1-year follow-up data were identified from two separate institutions. Patients were propensity-score matched with a 1:1 ratio with controls based on age, body mass index (BMI), gender, and time from surgery. Patient-reported outcomes included International Knee Documentation Committee (IKDC) Subjective Knee Form, Lysholm and Tegner scores. RESULTS:Twelve MLKIs with concomitant patellar tendon injuries were identified out of a multicenter cohort of 237 (5%) patients sustaining MLKI and were case matched 1:1 with 12 MLKIs without extensor mechanism injuries. The average follow-up was 5.5 ± 2.6 years. There were no differences in Schenck Classification injury patterns. There were significant differences found across IKDC (Patellar Tendon mean: 53.1 ± 24.3, MLKI mean 79.3 ± 19.6, P < 0.001) and Lysholm scores (Patellar Tendon mean: 63.6 ± 22.3, MLKI mean 86.3 ± 10.7, P < 0.001) between the two, illustrating poorer outcomes for patients with concomitant patellar tendon ruptures. CONCLUSION/CONCLUSIONS:In the setting of MLKI, patients who have a concomitant patellar tendon rupture have worse functional outcomes compared to those without. This information will be important for patient counseling and might be considered to be added to Schenck classification, reflecting its prognostic value. LEVEL OF EVIDENCE/METHODS:Level IV.
PMID: 36048200
ISSN: 1433-7347
CID: 5337792

Hip Arthroscopy for Femoroacetabular Impingement-Associated Labral Tears: Current Status and Future Prospects

Buzin, Scott; Shankar, Dhruv; Vasavada, Kinjal; Youm, Thomas
Femoroacetabular impingement (FAI) has emerged as a common cause of hip pain, especially in young patients. While the exact cause of FAI is unknown, it is thought to result from repetitive microtrauma to the proximal femoral epiphysis leading to abnormal biomechanics. Patients typically present with groin pain that is exacerbated by hip flexion and internal rotation. Diagnosis of FAI is made through careful consideration of patient presentation as well as physical exam and diagnostic imaging. Use of radiographs can help diagnose both cam and pincer lesions, while the use of MRI can diagnose labral tears and cartilage damage associated with FAI. Both non-operative and surgical options have their role in the treatment of FAI and its associated labral tears; however, hip arthroscopy has had successful outcomes when compared with physical therapy alone. Unfortunately, chondral lesions associated with FAI have had poorer outcomes with a higher conversion rate to arthroplasty. Capsular closure following hip arthroscopy has shown superior clinical outcomes and therefore should be performed if possible. More recently, primary labral reconstruction has emerged in the literature as a good option for irreparable labral tears. While non-operative management may have its role in treating patients with FAI, hip arthroscopy has developed a successful track record in being able to treat cam and pincer lesions, chondral damage, and labral injuries.
PMID: 35480069
ISSN: 1179-1462
CID: 5217552

Lateral unicompartmental knee arthroplasty: A review

Buzin, Scott D; Geller, Jeffrey A; Yoon, Richard S; Macaulay, William
Isolated lateral compartment osteoarthritis of the knee is a rare condition affecting approximately 1% of the population, which is ten times less common than osteoarthritis affecting only the medial compartment. Unicompartmental knee arthroplasty (UKA) has many potential advantages over total knee arthroplasty. The benefits of UKA include a smaller incision, preservation of more native tissue (including cruciate ligaments and bone), decreased blood loss, and better overall proprioception. When UKA was first introduced in the 1970s, the outcomes of medial UKA (MUKA) were poor, but the few cases of lateral UKA (LUKA) showed promise. Since that time, there has been a relative paucity of literature focused specifically on LUKA given it is a rare procedure. Refinements in patient selection criteria, implant design, and surgical technique have been made leading to increased popularity. A review of the recent literature reveals that LUKA is associated with excellent long-term clinical outcomes and implant survivorship when performed in properly selected patients. Implant design options include fixed vs mobile bearing as well as metal backed vs all polyethylene tibial component, with improved outcomes noted with fixed bearing designs. Three reasons cited for revision (i.e., fracture of the femoral component, fracture of the tibial component, and valgus malalignment) had been reported in past literature but not recently. Presently, while rare, the most common cause of failure and need for revision are osteoarthritis progression and aseptic loosening. Despite the need for an occasional revision procedure, the survivorship of LUKA is comparable to MUKA, although it should be noted that outcomes of MUKA have been notably varied. Continued pursuit of improved techniques and implant designs will continue to show LUKA to be an excellent procedure for appropriately indicated patients.
PMID: 33959483
ISSN: 2218-5836
CID: 5262262

Overuse Injuries in Females

Chapter by: Gianakos, AL; Buzin, S; Mulcahey, MK
in: The female athlete by Frank, Rachel
[S.l.] : Elsevier, 2021
pp. 249-260
ISBN: 9780323759861
CID: 5273302

Risk factors for liposomal bupivacaine resistance after total hip or knee arthroplasties: a retrospective observational cohort in 237 patients

Buzin, Scott; Gianakos, Arianna L; Li, Deborah; Viola, Anthony; Elkattawy, Sherif; Keller, David M; Yoon, Richard S; Liporace, Frank A
PURPOSE/OBJECTIVE:Liposomal bupivacaine demonstrated promise decreasing postoperative pain in total hip and total knee arthroplasty (THA/TKA). Some randomized trials have shown non-superior results; however, confounding variables were not accounted for in such analyses. This study attempts to determine risk factors associated with failure of pain management in patients receiving liposomal bupivacaine. METHODS:Postoperative pain scores were collected following primary or revision arthroplasties between January 2016 and December 2017. Retrospective analysis of institutional total joint quality and outcomes registry was screened and patients undergoing primary or revision arthroplasties who completed a multi-modal pain management including liposomal bupivacaine were included in the study. Patients with a history of infection/deviated from the institutional pain management protocol were excluded. RESULTS:A total of 237 patients were included for analysis. Younger patients less than 64 years old had significantly higher pain scores between 0 and 12 h and > 24 h. Active smokers had significantly higher pain scores between 0 and 6 h and > 24 h. Patients with a history of opioid use/pain management had significantly higher pain scores at 6-12 h and 24-48 h. Regression analysis indicated risk factors for resistance to liposomal bupivacaine are younger patients less than 64 years old, those undergoing primary THA, and patients with a history of smoking/pain management/opioid use. CONCLUSION/CONCLUSIONS:We identify risk factors for resistance to liposomal bupivacaine, which include younger age less than 64 years old, history of smoking/pain management/opioid use. Future studies should use these risk factors as exclusion criteria when using liposomal bupivacaine or initiating any randomized trials regarding efficacy.
PMID: 32015758
ISSN: 1754-9493
CID: 5262252

Cost analysis and performance in distal pediatric forearm fractures: is a short-arm cast superior to a sugar-tong splint?

Acree, Joshua S; Schlechter, John; Buzin, Scott
The aim of this study is to compare splint versus cast immobilization for maintaining alignment following closed reduction of distal 1/3 radius and both-bone forearm fractures. We performed a retrospective review of patient records between 5 and 14 years old with a distal 1/3 radius or radius and ulna fracture requiring reduction. A cost comparison was also performed using facility costs for materials. Reduction was maintained with acceptable alignment in most cases (94%). Although a sugar-tong splint slightly maintained fracture alignment better, this was not significant. Cost analysis favored initial placement of a short-arm cast ($23.59) versus a splint with later cast conversion ($26.95). Pediatric patients with a distal 1/3 radius and/or both-bone fracture requiring reduction maintain postreduction alignment irrespective of the immobilization method used, but initial placement of a short-arm cast is more cost-effective.
PMID: 27602915
ISSN: 1473-5865
CID: 5262242