Background: The incidence of revision hip arthroscopy with labral reconstruction in athletes is increasing. However, the outcomes of revision hip arthroscopy with labral reconstruction in athletes have not been well established. Purposes: (1) To report minimum 2–year patient–reported outcome (PRO) scores and return to sports (RTS) characteristics for high–level athletes undergoing revision hip arthroscopy with labral reconstruction and (2) to compare clinical results with those of a propensity–matched control group of high–level athletes undergoing revision hip arthroscopy with labral repair. Study Design: Cohort study; Level of evidence, 3. Methods: Data were prospectively collected and retrospectively reviewed for athletes at any level who underwent a revision hip arthroscopy and a labral reconstruction between April 2010 and March 2019. Minimum 2–year PROs were reported for the modified Harris Hip Score (mHHS), the Nonarthritic Hip Score (NAHS), the Hip Outcome Score–Sport Specific Subscale (HOS-SSS), the visual analog scale (VAS) for pain, and RTS. The percentages of athletes achieving the minimal clinically important difference (MCID) and the maximum outcome improvement satisfaction threshold (MOIST) were also recorded. These patients were propensity matched in a 1: 1 ratio to athletes undergoing revision hip arthroscopy with labral repair for comparison. Results: A total of 46 athletes (N = 47 hips) were reported from 50 (n = 51 hips) athletes who underwent revision with labral reconstruction. A subanalysis of 30 propensity–matched athletes undergoing revision labral reconstruction was performed, with a mean follow–up time of 26.3 ± 2.4 months and an age of 28.5 ± 10.1 years, and compared with a revision labral repair group. Significant improvements were obtained for the mHHS, the NAHS, the HOS-SSS, and the VAS from preoperative to the latest follow–up ( P < .001), with an achievement MCID rate of 61.5%, 72%, 62.5%, and 76.9% for the mHHS, the NAHS, the HOS-SSS, and the VAS, respectively. The rate for re–revision surgery (2 tertiary arthroscopy and 1 conversion to total hip arthroplasty) was 10%, and 14 patients (63.6%) were able to RTS. Improvements in PROs, rates of achieving MCID/MOIST, rate of re–revision surgery (re-revision hip arthroscopy, P = .671; conversion to total hip arthroplasty, P > .999), and RTS rate ( P = .337) were similar when compared with those of the propensity–matched control labral repair group ( P > .05). Conclusion: Revision hip arthroscopy with labral reconstruction, in the context of an irreparable labral tear, seems to be a valid treatment option in the athletic population, demonstrating significant improvements in all PROs and low rates of undergoing revision surgery. Athletes experienced a similar magnitude of improvement in PROs, RTS rate, and revision surgery rate to that of a propensity–matched control group of athletes undergoing revision hip arthroscopy with labral repair.
Background: Bone bruises are commonly seen on magnetic resonance imaging (MRI) in acute anterior cruciate ligament (ACL) injuries and can provide insight into the underlying mechanism of injury. There are limited reports that have compared the bone bruise patterns between contact and noncontact mechanisms of ACL injury. Purpose: To examine and compare the number and location of bone bruises in contact and noncontact ACL injuries. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Three hundred twenty patients who underwent ACL reconstruction surgery between 2015 and 2021 were identified. Inclusion criteria were clear documentation of the mechanism of injury and MRI within 30 days of the injury on a 3-T scanner. Patients with concomitant fractures, injuries to the posterolateral corner or posterior cruciate ligament, and/or previous ipsilateral knee injury were excluded. Patients were stratified into 2 cohorts based on a contact or noncontact mechanism. Preoperative MRI scans were retrospectively reviewed by 2 musculoskeletal radiologists for bone bruises. The number and location of the bone bruises were recorded in the coronal and sagittal planes using fat-suppressed T2-weighted images and a standardized mapping technique. Lateral and medial meniscal tears were recorded from the operative notes, while medial collateral ligament (MCL) injuries were graded on MRI. Results: A total of 220 patients were included, with 142 (64.5%) noncontact injuries and 78 (35.5%) contact injuries. There was a significantly higher frequency of men in the contact cohort compared with the noncontact cohort (69.2% vs 54.2%, P = .030), while age and body mass index were comparable between the 2 cohorts. The bivariate analysis demonstrated a significantly higher rate of combined lateral tibiofemoral (lateral femoral condyle [LFC] + lateral tibial plateau [LTP]) bone bruises (82.1% vs 48.6%, P < .001) and a lower rate of combined medial tibiofemoral (medial femoral condyle [MFC] + medial tibial plateau [MTP]) bone bruises (39.7% vs 66.2%, P < .001) in knees with contact injuries. Similarly, noncontact injuries had a significantly higher rate of centrally located MFC bone bruises (80.3% vs 61.5%, P = .003) and posteriorly located MTP bruises (66.2% vs 52.6%, P = .047). When controlling for age and sex, the multivariate logistical regression model demonstrated that knees with contact injuries were more likely to have LTP bone bruises (OR, 4.721 [95% CI, 1.147-19.433], P = .032) and less likely to have combined medial tibiofemoral (MFC + MTP) bone bruises (OR, 0.331 [95% CI, 0.144-0.762], P = .009) compared with those with noncontact injuries. Conclusion: Significantly different bone bruise patterns were observed on MRI based on ACL injury mechanism, with contact and noncontact injuries demonstrating characteristic findings in the lateral tibiofemoral and medial tibiofemoral compartments, respectively.
Background: The effect of high body mass index (BMI) on outcomes in athletes has not been established. Purpose: (1) To report minimum 2-year patient-reported outcome (PRO) scores and return to sports (RTS) for high-level athletes with high BMI undergoing hip arthroscopy for femoroacetabular impingement syndrome (FAIS) and (2) to compare results with a propensity-matched control group of high-level athletes with a normal BMI. Study Design: Cohort study; Level of evidence, 3. Methods: Data were collected on all professional, collegiate, and high school athletes who had a high BMI (>30) and who had undergone primary hip arthroscopy for FAIS between January 2010 and December 2018. RTS status and minimum 2-year PROs were collected for the modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), Hip Outcome Score–Sports Specific Subscale (HOS-SSS), and visual analog scale (VAS) for pain. The percentage of patients achieving the minimal clinically important difference (MCID) and Patient Acceptable Symptom State (PASS) were also recorded. These patients were propensity matched in a 1:3 ratio to high-level athletes with a normal BMI for comparison. Results: A total of 30 high-level athletes with a high BMI were included with a mean follow-up of 49.4 ± 29.5 months. They demonstrated significant improvement from preoperatively to latest follow-up for mHHS, NAHS, HOS-SSS, and VAS ( P < .001). When outcomes were compared with a propensity-matched control group of 90 athletes with a normal BMI, athletes with a high BMI had worse acetabular cartilage injury and were more likely to undergo acetabular microfracture ( P < .001). Athletes with a high BMI demonstrated lower postoperative scores for NAHS when compared with athletes with a normal BMI (88.06 ± 9.37 [range, 60-100] and 90.25 ± 10.79 [range, 48.75-100], respectively; P = .049). Athletes with a high BMI also demonstrated worse postoperative scores for HOS-SSS when compared with athletes with a normal BMI (77.22 ± 18.31 [range, 22.22-100] and 82.38 ± 22.79 [range, 2.78-100], respectively; P = .038). Rates of achieving MCID for the high-BMI and normal-BMI groups were comparable in mHHS (90.0% and 77.8%, respectively; P = .185) and HOS-SSS (90.0% and 82.2%, respectively; P = .397). PASS rates were also comparable between the high- and normal-BMI groups for mHHS (90.0% and 87.8%, respectively; P > .999) and HOS-SSS (70.0% and 71.1%, respectively; P = .908). Athletes with a high BMI also returned to sports at a lower rate compared with athletes with a normal BMI, but this did not reach statistical significance ( P = .479). Conclusion: Athletes with a high BMI undergoing primary hip arthroscopy for FAIS demonstrated significant improvement in PROs and favorable rates achieving clinically meaningful improvement. When compared with a control group of high-level athletes with a normal BMI, they exhibited similar rates of achieving psychometric thresholds and RTS rates. At short-term follow-up, high BMI did not adversely affect outcomes of high-level athletes undergoing primary hip arthroscopy.
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