Hevesi, Mario

Background: Osteochondral allograft transplant and autograft transplant for femoral head defects have emerged as promising treatments for concomitant cartilage and subchondral bone injuries in young patients. Purpose: To evaluate the clinical and radiological outcomes of patients who underwent osteochondral allograft or autograft transplant for femoral head defects and identify any risk factors that may lead to conversion to total hip arthroplasty (THA). Study Design: Case series; Level of evidence, 4. Methods: All patients who underwent osteochondral allograft or autograft transplant for femoral head defects across 2 institutions were analyzed. Clinical outcomes were assessed at final follow-up with the modified Harris Hip Score (mHHS), Hip Outcome Score–Activities of Daily Living (HOS-ADL), Hip Outcome Score–Sport-Specific Subscale (HOS-SSS), and International Hip Outcome Tool (iHOT-12). Complications and reoperations were recorded. Patients were assessed radiographically preoperatively and at final follow-up for osteoarthritis using Tönnis grading. Results: A total of 27 patients were included in this study (19 osteochondral allograft transplant, 8 osteochondral autograft transplant). The mean follow-up for the allograft and autograft cohorts was 2.8 and 9.5 years, respectively. The mean defect size for patients who underwent allograft and autograft transplant was 2.8 × 2.1 cm and 1.6 × 1.0 cm, respectively. The mean mHHS, HOS-ADL, HOS-SSS, and iHOT-12 for the allograft cohort were 86.7, 92.8, 81.4, and 79.0, respectively, and for the autograft cohort were 87.6, 92.7, 83.1, and 82.0, respectively. No significant difference in outcomes was noted for patients who underwent femoral head allograft versus nonorthotopic femoral condyle allograft transplant. For the allograft cohort, 4 patients (21.1%) underwent conversion to THA at a mean of 1.9 years. Of the remaining 15 allograft patients, only 1 patient (6.7%) had radiographic osteoarthritis progression. None of the patients in the autograft cohort underwent conversion to THA. Conclusion: Osteochondral allograft and autograft transplant for femoral head defects demonstrated overall favorable clinical outcomes and rates of conversion to THA. Additionally, nonorthotopic femoral condyle allografts demonstrated similar outcomes to femoral head allografts. Both osteochondral allograft and autograft transplant should be considered for patients with focal femoral head defects.

Abstract Hip chondral defects often are encountered at the time of hip arthroscopy and can result in substantial pain and dysfunction. With the evolution of cell‐based techniques, there is growing interest in single‐stage, arthroscopic treatment of such chondral lesions. Arthroscopic orthobiologic delivery remains technically challenging, given the constrained and concave nature of the acetabulum and the need to perform instrumentation taking into account nearby structures such as the articular surface, hip capsule, and labrum. In this Technical Note, we describe our preferred method for arthroscopic delivery of orthobiologics at the time of single‐stage cartilage repair, which allows for needle‐based transcapsular, translabral access of hip chondral defects for both the acetabulum and femoral head. Technique Video video See video under supplementary data.

» Femoroacetabular impingement (FAI) is the premature contact of the femoral head-neck junction with the superior acetabular rim during hip range of motion, which may further damage intra-articular soft tissue structures and lead to the accelerated development of osteoarthritis. » FAI syndrome is diagnosed by a triad of symptoms, clinical signs, and imaging findings, and is a common cause of hip pain in young patients that have a significant impact on patient hip-related function and quality of life. » The treatment of FAI syndrome begins with noninvasive nonoperative modalities such as patient education and supervised exercise-based physical therapy. For recalcitrant symptoms, various injections have been explored for both diagnostic and therapeutic purposes; however, the efficacy of these interventions have generally not been demonstrated outside of the short term » In this article, we examine the available literature regarding the nonoperative treatment of FAI and provide insight into the effectiveness of current treatment modalities.

Abstract The ability of the knee to resist valgus stress is largely a result of the integrity of the superficial medial collateral ligament (MCL) and neighboring supporting structures (i.e., deep MCL, semimembranosus, and posterior oblique ligament). The MCL is known to have a robust healing capacity; consequently, the decision to proceed with operative versus nonoperative management of even grade III MCL tears is controversial. When it comes to operative management of these injuries, the decision to proceed with repair or reconstruction is nuanced because the chronicity and location of the MCL tear (i.e., proximal, midsubstance, or distal) largely determine which technique is appropriate. In distal MCL avulsions, including the so‐called Stener lesion, with good tissue quality, direct MCL repair has shown excellent mid‐term outcomes. Consequently, there is a growing need to understand different techniques to address MCL incompetence. In this article, we present a method for primary MCL repair using a washer post–suture post construct. Technique Video video See video under supplementary data.

Background: Various medial patellofemoral ligament (MPFL) reconstruction techniques have been developed to minimize risks to the physis in skeletally immature patients. Purpose: To examine outcomes of MPFL reconstruction (MPFLR) based on fixation technique in skeletally immature patients. Study Design: Systematic review; Level of evidence, 4. Methods: PubMed, Scopus, Ovid, Cochrane Library, and CINAHL databases were searched for the literature on outcomes of MPFLR in the pediatric population, utilizing various anatomic and nonanatomic techniques. Primary outcomes were postoperative redislocation rates, return-to-sports (RTS) rates, and patient-reported outcomes (PROs). Moreover, outcomes involving sequela of growth plate disturbance were collected. Results: The final analysis included 17 studies—2 using sling-based techniques, 3 using surface-based techniques, 5 using soft tissue realignments, and 7 utilizing transosseous femoral fixations. Higher rates of postoperative redislocation were found in the sling-based (14.8%) and distal soft tissue realignment using semitendinosus tenodesis (38%) techniques, while lower rates were noted with surface-based (1.3%) and transosseous (3.4%) techniques. For PROs, there were large amounts of heterogeneity among studies, but all reported postoperative improvements, with more positive PROs generally seen in anatomic reconstructions. The RTS rate was 100% for surface-based techniques, 79.4% for distal soft tissue realignments, 79.5% for soft tissue realignment techniques, and 83.2% for transosseous techniques. No negative outcomes as a sequela of growth plate disturbance were reported. Conclusion: Nonanatomic techniques—such as sling-based and distal soft tissue realignment techniques—have higher rates of redislocation and lower RTS rates in skeletally immature patients undergoing MPFLR. Surface-based and transosseous tunnel-based techniques were shown to have lower redislocation and higher RTS rates. Clinical Relevance: This review provides insight into the most appropriate surgical management of patellar instability in patients with open growth plates.

Abstract Background: Intra-articular corticosteroid injections (ICSI) have been shown to be an effective symptomatic non-operative treatment for hip osteoarthritis (OA) and other joint-related pain. There has been recent dispute over the true risk of complications from ICSI specifically when injected into the hip. Avascular necrosis (AVN) of the femoral head has been reported to occur in up to 30.5% of patients after undergoing hip ICSI, and up to 50.6% of patients experiencing osteoarthritis progression in as little as 3 months following injection. Purpose: To analyze the current protocol of hip ICSIs performed by two fellowship-trained non-operative sports medicine physicians and assess the rate of femoral head avascular necrosis. We hypothesized that the rate of AVN will be less than what has been recently reported in the literature. Study Design: Retrospective chart review Methods: Patients that underwent at least one intra-articular corticosteroid hip injection by two fellowship trained non-operative sports medicine physicians at this institution were identified using an institutional database. Exclusion criteria included injections with contrast dye used for imaging, injections that administered orthobiologics to the intra-articular, and non-intra-articular injections. Procedure notes were reviewed for anesthetic and steroid type, dosage, and needle size. Each chart was screened for demographic information, post-injection infections, AVN diagnosis, and subsequent hip replacement. 10 patients were identified with an AVN diagnosis. Their MRNs were sent to a board-certified radiologist at the same medical institution. The radiologist was blinded to the patient’s chart and instructed to identify the first radiograph with evidence of AVN. Patients were excluded if the reviewer did not agree with the diagnosis as it appeared in the medical chart or the AVN developed post-traumatically. Results: 449 patients, 530 hips, underwent 1.8 ± 1.4 ICSIs and 16.3% underwent THA at an average of 2.2 ± 2.3 years following their first injection. Of the 530 hips that underwent ICSI, only 1 hip demonstrated findings of AVN on radiographs following the first injection, and this patient had been taking oral prednisone for over 20 years. Conclusions: Intra-articular corticosteroid injections are a relatively safe symptomatic treatment option for hip pain secondary to both OA and non-OA pathology to be considered when other non-operative treatment options have failed. While the use of steroids comes with an inherent risk of osteonecrosis and cartilage damage, these results demonstrate that, when performed properly with ultrasound guidance and sterile technique, the risk of femoral head avascular necrosis is minimal.

Abstract Introduction: Periacetabular osteotomy (PAO) is a complex procedure historically requiring inpatient stay. There is increased emphasis for these to be performed on an outpatient basis by insurance companies. The purpose of this study was to investigate the proportion of various surgical listing classifications (outpatient, outpatient-overnight, inpatient), the incidence of subsequent denial/request for additional documentation for approval of inpatient stay, and to characterize the average length of stay (LOS) following PAO. Methods: A retrospective chart review was performed to identify all PAOs, performed by four participating surgeons, at a single academic institution over a two-year period. The initial listing status as an outpatient-overnight or inpatient procedure was identified. Whether a preoperative peer review was required for approval of inpatient listings as well as if additional documentation was necessary to convert outpatient-overnight listings to inpatient stays were also recorded. Results: A total of 140 PAOs amongst 117 patients were performed with 25 (17.9%) initially listed as an inpatient stay and 115 (82.1%) listed as outpatient-overnight. Of the 25 PAOs listed as inpatient, 2 (8.0%) required a preoperative peer review process to justify or clarify listing status. The average LOS was 1.9 ± 1.4 days with 55.7% (78/140) of PAOs staying two or more nights in the hospital. Only 6 PAOs (4.3%) went home the same day as surgery. Of the 115 PAOs listed as an outpatient-overnight, 53 (46.1%) converted to an inpatient stay. Conclusion: Over half of PAOs performed required inpatient stay beyond outpatient-overnight status. Preoperative peer-to-peer review for inpatient stay approval was modestly frequent (8% of inpatient listings), and all conversions to inpatient required additional service documentation to support status conversion. Understanding trends in postoperative hospitalizations and LOS might allow for better informed partnerships between surgeons and insurance companies creating more efficient pre-authorizations, billing practices, and expected patterns of patient care and discharge.

Abstract Background: Osteochondral allograft and autograft transplantation for femoral head defects have emerged as promising treatments for concomitant cartilage and subchondral bone injuries in young patients. The purpose of this study was to evaluate the clinical and radiological outcomes of patients who underwent osteochondral allograft or autograft transplantation for femoral head defects and access any risk factors that may lead to conversion to THA. Methods: All patients who underwent osteochondral allograft or autograft transplantation for femoral head defects were analyzed. All patients had symptomatic femoral head osteochondral defects identifiable on advanced imaging such as computed tomography or magnetic resonance imaging. Clinical outcomes were assessed at final follow-up with the modified Harris Hip Score (mHHS), Hip Outcome Score – Activities of Daily Living (HOS-ADL), Hip Outcome Score – Sport-Specific Subscale (HOS-SSS), and International Hip Outcome Tool (iHOT-12). Additionally, patients were assessed radiographically preoperatively and at a final postoperative visit using anterior-posterior and lateral radiographs for osteoarthritis using Tönnis grading. Results: A total of 27 patients were included in this study (19 osteochondral allograft transplantation, 8 osteochondral autograft transplantation). The overall mean follow-up was 4.7 years. The average mHHS, HOS-ADL, HOS-SSS, and iHOT-12 for the allograft cohort were 86.7, 92.8, 81.4, and 79.0, respectively, while for the autograft cohort it was 87.6, 92.7, 83.1, and 82.0, respectively. For the allograft cohort, there were a total of 5 reoperations (26.3%) consisting of 4 THA at a mean of 1.9 years and 1 trochanteric osteotomy nonunion at 0.7 year. For the remaining allograft patients who did not undergo treatment failure, only one (6.7%) had radiographic osteoarthritis progression. None of the patients in the autograft cohort underwent THA. Overall, conversion to THA was 14.8%. Conclusion: Osteochondral allograft and autograft transplantation for femoral head defects demonstrated overall favorable clinical outcomes and conversion to THA at mean 5-year follow-up and should be considered for patients with focal femoral head defects.

Abstract Background: Iliopsoas (IP) tendinitis is a recognized complication following total hip arthroplasty (THA) and isolated iliopsoas fractional lengthening (IPFL) has been able to provide symptom relief. IPFL has traditionally been done openly; however, the arthroscopic IPFL has recently been described as an alternative, offering the potential for lower surgical site morbidity and a more favorable post-operative recovery. Purpose: To compare clinical and patient reported outcomes following open and arthroscopic IPFL. We hypothesize that patients undergoing arthroscopic IPFL will have improved pain, function, and satisfaction with lower post-operative complication rates when compared to patients undergoing open IPFL. Methods: Patients with symptomatic IP tendinitis following THA who underwent IPFL from 1988-2023 were reviewed. Inclusion criteria included 2 years follow-up and no concomitant procedures. Patient records were evaluated for surgery type, radiographic anterior acetabular component overhang, reoperations, and need for revision THA. Surveys were used to report overall surgery satisfaction, postoperative subjective hip flexion strength and anterior groin pain improvement, mHHS, SANE score, Tegner activity scale, and VAS for pain. Results: Fifty-two patients (16 males and 36 females, age: 63.9 ± 11.7 years, BMI: 28.8 ± 5.4 kg/m2) were followed for a mean of 68.7 (24.0 – 203.7) months postoperatively. Overall surgery satisfaction was 7.9 (arthroscopic) and 6.0 (open) (p = 0.178). 86% of patients treated arthroscopically reported feeling “slightly” or “much better” and 86% also reported improvement in their anterior groin pain, compared to 55% and 45% respectively treated openly. In the arthroscopic cohort, 64% reported that their hip flexion strength was “slightly ” or “much better”, compared to 36% treated openly. Average VAS pain score was 1.7 ± 2.7 at rest (arthroscopic: 1.1 ± 2.2, open: 3.3 ± 3.2, p = 0.0092) and 3.0 ± 1.3 (arthroscopic: 3.1 ± 1.3, open: 2.6 ± 1.1) with use. Mean postoperative Tegner score was 3.0 ± 1.3 (arthroscopic: 3.1 ± 1.3, open: 2.6 ± 1.1) compared to 2.3 ± 1.2 preoperatively (arthroscopic: 2.3 ± 1.3, open: 2.1 ± 1.1) (p = 0.0018). Mean post-operative mHHS and SANE score was 74.9 ± 21.6 (arthroscopic: 77.0 ± 19.0, open: 69.2 ± 26.9) and 69.7± 29.7 (arthroscopic: 70.9 ± 28.7, open: 66.7 ± 31.8) respectively. Conclusion: The results indicate that arthroscopic IPFL trends towards significantly improved pain, function, and satisfaction scores when compared to patients undergoing open IPFL, and should be considered when appropriate over an open IPFL given the less invasive nature of an arthroscopic procedure.

Abstract Purpose: 1) To report the clinical outcomes and reoperation rates of arthro- and endo-scopic iliopsoas release at short-term follow-up following ipsilateral total hip arthroplasty from two separate medical institutions, and 2) to evaluate whether demographic and radiographic parameters are associated with postoperative patient reported outcomes. Methods: Patients with iliopsoas tendinitis in the setting of prior THA that underwent arthroscopic iliopsoas fractional lengthening from 1988 – 2023 were reviewed at two academic institutions. Patients were included if they had minimum 12-month follow-up and were evaluated for preoperative anterior acetabular component overhang, surgery satisfaction, postoperative subjective hip flexion strength and anterior groin pain improvement, modified Harris Hip Score (mHHS), Single Assessment Numeric Evaluation (SANE) score, Tegner activity scale, visual analog scale (VAS), and revision hip arthroplasty. Results: Sixty hips in 58 patients (19 males, 39 females) were followed for a mean of 39.3 (12.0-105.9) months postoperatively. 77% of patients reported feeling “much” or “slightly better”, 75% reported improved anterior groin pain, and 60% reported improved subjective hip flexion strength. Surgery satisfaction was 7.2 ± 3.3 (scale of 0 to 10). Mean postoperative mHHS, VAS pain at rest, VAS pain with use, and SANE scores were 73.9 ± 19.4, 1.3 ± 2.4, 3.8 ± 2.9, and 71.9 ± 21.9 respectively. Preoperative anterior acetabular component overhang was 3.3 ± 6.5 mm and didn’t significantly correlate with postoperative PROs (p ≥ 0.45). Tegner score improved to 2.9 ± 1.4 from 2.5 ± 1.7 preoperatively (p = 0.0253). Three patients underwent revision arthroplasty at a mean of 25.3 (11.6 – 40.4) months postoperatively, with an acetabular component revision rate of 3.3%. Conclusions: Satisfactory outcomes and low revision arthroplasty rates were observed in patients undergoing arthroscopic iliopsoas lengthening following THA. There was no statistically significant relationship between anterior acetabular component overhang and final PROs. Level of Evidence: IV; Retrospective Case Series