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Gillinov SM, Lee JS, Siddiq BS, Dowley KS, Torabian KA, Dean MC, Cherian NJ, Cote MP, Martin SD. Association Between Severity of Chondrolabral Junction Breakdown and Functional Outcomes After Hip Arthroscopy for Acetabular Labral Tears. Am J Sports Med 2024; 52:2295-2305. [PMID: 38872427 DOI: 10.1177/03635465241255950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
BACKGROUND Despite focus on surgical preservation of the chondrolabral junction (CLJ), the transition zone between the acetabular cartilage and labrum, the association between severity of CLJ breakdown and functional outcomes after hip arthroscopy remains unexplored. PURPOSE To assess the influence of CLJ breakdown on patient-reported outcome measures (PROMs) at a 24-month follow-up after hip arthroscopy for symptomatic labral tears. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective review of prospectively collected data was conducted to identify patients ≥18 years of age with a minimum 24-month follow-up who underwent hip arthroscopy by a single surgeon for the treatment of symptomatic labral tears secondary to femoroacetabular impingement. The Beck classification of transition zone cartilage was used to grade CLJ damage; patients with grades 0 to 2 were stratified into the mild CLJ damage cohort, and those with grades 3 and 4 were stratified into the severe CLJ damage cohort. PROMs were collected at baseline and at 3, 6, 12 months, and annually thereafter postoperatively. Linear mixed-effects models were used to compare PROMs. Rates of achieving clinically meaningful thresholds and subsequent surgery rates were also compared. RESULTS In total, 198 patients met the inclusion criteria, with a mean follow-up of 3.54 ± 1.26 years. A total of 95 patients with severe CLJ damage (mean age, 34.9 ± 10.5 years) were compared with 103 patients with mild CLJ damage (mean age, 38.2 ± 11.9 years). Hip Outcome Score-Activities of Daily Living (HOS-ADL), Non-Arthritic Hip Score (NAHS), and visual analog score for pain were inferior in the severe CLJ group at enrollment and all follow-up time points (P≤ .05). However, patients with severe CLJ breakdown exhibited greater improvements in HOS-ADL and NAHS at the 24-month follow-up and achieved clinically meaningful thresholds at equivalent rates to patients with mild CLJ breakdown. Subsequent surgery rates were 6.8% and 12.6% in patients with mild versus severe CLJ damage, respectively (P = .250). CONCLUSION Severe CLJ breakdown is associated with increased pain and decreased functional level preoperatively and up to 24 months after hip arthroscopy. Despite this, patients with severe CLJ breakdown experienced greater improvements in functional outcomes at a 24-month follow-up and achieved clinical thresholds at similar rates to patients with mild CLJ damage. Thus, while worse baseline pain and functional levels may indicate severe CLJ breakdown, these patients still benefit substantially from hip arthroscopy.
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Affiliation(s)
- Stephen M Gillinov
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jonathan S Lee
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Bilal S Siddiq
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kieran S Dowley
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kaveh A Torabian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Michael C Dean
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Nathan J Cherian
- Department of Orthopaedic Surgery, University of Nebraska, Omaha, Nebraska, USA
| | - Mark P Cote
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Scott D Martin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
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Dean MC, Cherian NJ, McBroom TJ, Eberlin CT, Torabian KA, Dowley KS, LaPorte ZL, Kucharik MP, Martin SD. Preoperative Paralabral Cysts Predict More Significant Chondral Damage but Not 2-Year Functional Outcomes Following Arthroscopic Labral Repair. Arthroscopy 2024; 40:1475-1487.e1. [PMID: 37865131 DOI: 10.1016/j.arthro.2023.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/20/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023]
Abstract
PURPOSE To investigate whether paralabral cysts identified incidentally on preoperative magnetic resonance imaging/arthrography predict 2-year functional outcomes after arthroscopic acetabular labral repair. METHODS Prospectively collected data for patients undergoing primary hip arthroscopy by a single surgeon from 2014 to 2020 were retrospectively reviewed. Included patients were ≥18 years and completed baseline patient-reported outcome measures (PROMs) with additional follow-up at 3, 6, 12, and 24 months. Exclusion criteria were labral debridement, hip dysplasia, advanced hip osteoarthritis (Tönnis > 1), or previous ipsilateral hip surgery. Patients were stratified based on the presence of paralabral cysts identified on magnetic resonance imaging/arthrography. Primary outcomes were International Hip Outcome Tool and modified Harris Hip Score. Secondary outcomes included other PROMs and the visual analog pain scale. Outcomes were compared between cohorts using linear mixed-effects models and Fisher's exact tests. Sensitivity analyses accounted for preoperative PROMs, nonlinear improvement trajectories, and relevant baseline characteristics. RESULTS Of the 182 included hips (47.8% female; mean ± standard deviation age, 36.9 ± 11.4), 30 (16.4%) had paralabral cysts. During the 2-year study period, there were no significant differences between patients with and without paralabral cysts in terms of International Hip Outcome Tool scores (weighted difference = 1.60; 95% confidence interval [CI], -5.09, 8.28; P = .64), modified Harris Hip Scores (weighted difference = 0.56; 95% CI, -4.16, 5.28; P = .82), or any secondary outcomes (except for HOS-Sports Subscale at 3 months [mean difference = -11.85; 95% CI, -22.85, -0.84; P = .035]). Furthermore, there were no significant differences in clinically meaningful outcomes (P > .05 for all), revision rates (P > .99), or conversion to total hip arthroplasty between cohorts (P > .99). These results held across all sensitivity analyses. CONCLUSIONS Although preoperative paralabral cysts were associated with worse cam impingement and more severe chondral damage observed intraoperatively, they did not predict 2-year functional outcomes or clinically meaningful improvements, suggesting that incidentally discovered paralabral cysts are not a contraindication for arthroscopic labral repair. LEVEL OF EVIDENCE Level III, retrospective cohort study.
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Affiliation(s)
- Michael C Dean
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A..
| | - Nathan J Cherian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.; Department of Orthopaedic Surgery, University of Nebraska, Omaha, Nebraska, U.S.A
| | | | - Christopher T Eberlin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.; Department of Orthopaedic Surgery, University of Iowa, Iowa City, Iowa, U.S.A
| | - Kaveh A Torabian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Kieran S Dowley
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Zachary L LaPorte
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Michael P Kucharik
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Scott D Martin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.; Harvard Medical School, Boston, Massachusetts, U.S.A
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Johnson J, Vivekanantha P, Blackman B, Cohen D, Simunovic N, Ayeni OR. Labral repair, reconstruction, and augmentation improve postoperative outcomes in patients with irreparable or hypoplastic labra: A systematic review. J ISAKOS 2024:S2059-7754(24)00082-8. [PMID: 38670346 DOI: 10.1016/j.jisako.2024.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 04/04/2024] [Indexed: 04/28/2024]
Abstract
PURPOSE To review the postoperative outcomes of arthroscopic surgical options in treating irreparable and hypoplastic labrum of the hip. METHODS Three online databases (PubMed, MEDLINE, and EMBASE) were searched from database inception to June 27, 2023 to identify literature on treatment strategies for hypoplastic/irreparable acetabular labrum. Data pertaining to classification of irreparable tears or labral hypoplasia, indication for surgery, description of treatment, radiographic findings, and clinical outcomes were recorded and described. The methodological quality of included studies was assessed by the Methodological Index for Non-Randomized Studies (MINORS) criteria. RESULTS Seven level IV case series, eleven level III retrospective cohort studies, and two level II prospective cohort studies comprising 1937 patients were included for analysis. Studies were divided into an irreparable labral group comprising 1002 patients and a hypoplastic labral group comprising 935 patients. Treatments included repair, augmentation, or reconstruction. In the irreparable group, 12 studies recorded improvement of modified Harris Hip Score (mHHS) with preoperative scores ranging from 50.3 to 67.3 and postoperative scores ranging from 76.2 to 95.0. The rate of conversion to total hip arthroplasty (THA) and rate of revision arthroscopy were 6.6% and 5.9%, respectively across all studies. In the hypoplastic group, two studies that focused on repair noted no statistical difference in mHHS for repair in hypoplastic labrum vs repair in non-hypoplastic labrum. One study showed that there was a difference in post-operative mHHS for labral repair for hypoplastic vs non-hypoplastic labrum, with repair in non-hypoplastic labrum showing superior mHHS (p < 0.001). CONCLUSION The findings of this review suggest that treatment of irreparable labra with reconstruction or augmentation results in improved patient-reported outcome measures (PROMs). For the hypoplastic labrum, primary repair also results in improvement in PROMs. Future studies focusing on the hypoplastic labra alone with an appropriate control group, rather than irreparable labral tears, are needed to properly assess patient outcomes and guide surgical indications.
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Affiliation(s)
- Jansen Johnson
- Division of Orthopedic Surgery, Department of Surgery, McMaster, Hamilton, ON, Canada
| | | | - Benjamin Blackman
- Department of Medicine, Department of Surgery, University of Limerick, Limerick, Ireland
| | - Dan Cohen
- Division of Orthopedic Surgery, Department of Surgery, McMaster, Hamilton, ON, Canada
| | - Nicole Simunovic
- Division of Orthopedic Surgery, Department of Surgery, McMaster, Hamilton, ON, Canada
| | - Olufemi R Ayeni
- Division of Orthopedic Surgery, Department of Surgery, McMaster, Hamilton, ON, Canada.
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Torabian KA, Cherian NJ, Eberlin CT, Dean MC, Dowley KS, LaPorte ZL, Kucharik MP, Gillinov SM, Martin SD. The Effect of Pelvic Incidence on Outcomes After Hip Arthroscopy for Femoroacetabular Impingement and Acetabular Labral Tears. Am J Sports Med 2024; 52:631-642. [PMID: 38369972 PMCID: PMC10905981 DOI: 10.1177/03635465231219261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 10/06/2023] [Indexed: 02/20/2024]
Abstract
BACKGROUND In the setting of femoroacetabular impingement (FAI), decompression osteoplasties reconcile deleterious loading patterns caused by cam and pincer lesions. However, native variations of spinopelvic sagittal alignment may continue to perpetuate detrimental effects on the labrum, chondrolabral junction, and articular cartilage after hip arthroscopy. PURPOSE To evaluate the effect of pelvic incidence (PI) on postoperative outcomes after hip arthroscopy for acetabular labral tears in the setting of FAI. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective query of prospectively collected data identified patients ≥18 years of age who underwent primary hip arthroscopy for FAI and acetabular labral tears between February 2014 and January 2022, with 3-, 6-, 12-, and 24-month follow-ups. Measurements for PI, pelvic tilt (PT), sacral slope (SS), and acetabular version were obtained via advanced diagnostic imaging. Patients were stratified into low-PI (<45°), moderate-PI (45°≤ PI ≤ 60°), and high-PI (>60°) cohorts. Patient-reported outcome measures (PROMs), clinically meaningful outcomes (ie, minimal clinically important difference, Patient Acceptable Symptom State, substantial clinical benefit, and maximal outcome improvement), visual analog scale (VAS) pain scores, and patient satisfaction were compared across cohorts. RESULTS A total of 74 patients met eligibility criteria and were stratified into low-PI (n = 28), moderate-PI (n = 31), and high-PI (n = 15) cohorts. Correspondingly, patients with high PI displayed significantly greater values for PT (P = .001), SS (P < .001), acetabular version (P < .001), and acetabular inclination (P = .049). By the 12- and 24-month follow-ups, the high-PI cohort was found to have significantly inferior PROMs, VAS pain scores, rates of clinically meaningful outcome achievement, and satisfaction relative to patients with moderate and/or low PI. No significant differences were found between cohorts regarding rates of revision arthroscopy, subsequent spine surgery, or conversion to total hip arthroplasty. CONCLUSION After hip arthroscopy, patients with a high PI (>60°) exhibited inferior PROMs, rates of achieving clinically meaningful thresholds, and satisfaction at 12 and 24 months relative to patients with low or moderate PI. Conversely, the outcomes of patients with low PI (<45°) were found to match the trajectory of those with a neutral spinopelvic alignment (45°≤ PI ≤ 60°). These findings highlight the importance of analyzing spinopelvic parameters preoperatively to prognosticate outcomes before hip arthroscopy for acetabular labral tears and FAI.
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Affiliation(s)
- Kaveh A. Torabian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Nathan J. Cherian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Orthopaedic Surgery, University of Nebraska, Omaha, Nebraska, USA
| | - Christopher T. Eberlin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Orthopedic Surgery, University of Iowa, Iowa City, Iowa, USA
| | - Michael C. Dean
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kieran S. Dowley
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Zachary L. LaPorte
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Michael P. Kucharik
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Orthopaedic Surgery, University of South Florida, Tampa, Florida, USA
| | - Stephen M. Gillinov
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Scott D. Martin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
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Ricciardi BF. CORR Insights®: Can the Acetabular Labrum Be Reconstructed With a Meniscal Allograft? An In Vivo Pig Model. Clin Orthop Relat Res 2024; 482:399-401. [PMID: 37916979 PMCID: PMC10776152 DOI: 10.1097/corr.0000000000002908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 10/03/2023] [Indexed: 11/03/2023]
Affiliation(s)
- Benjamin F Ricciardi
- Department of Orthopaedic Surgery, Center for Musculoskeletal Research, University of Rochester School of Medicine, Rochester, NY, USA
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Torabian KA, Cherian NJ, Dean MC, Eberlin CT, Kucharik MP, Dowley KS, LaPorte ZL, Martin SD. Outcomes of Hip Arthroscopy in the Setting of Concomitant Symptomatic Lumbosacral Spine Pathology: A Matched Control Study With Minimum 24-Month Follow-up. Am J Sports Med 2023; 51:3268-3279. [PMID: 37715499 PMCID: PMC10571439 DOI: 10.1177/03635465231197374] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 07/20/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND The overlapping biomechanical relationship between the lumbosacral spine and pelvis poses unique challenges to patients with concomitant pathologies limiting spinopelvic range of motion. PURPOSE To assess the influence of concomitant, symptomatic lumbosacral spine pathology on patient-reported outcome measures (PROMs) after hip arthroscopy for the treatment of femoroacetabular impingement (FAI) and symptomatic labral tears. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective query of prospectively collected data identified patients aged ≥18 years with a minimum 24-month follow-up who underwent hip arthroscopy by a single surgeon for the treatment of symptomatic labral tears secondary to FAI. Patients were stratified into cohorts based on the presence (hip-spine [HS]) or absence (matched control [MC]) of symptomatic lumbosacral spine pathology. Inclusion within the HS cohort required confirmation of lower back pain/symptoms on preoperative surveys plus a diagnosis of lumbosacral spine pathology verified by radiology reports and correlating clinical documentation. Patients with previous spine surgery were excluded. PROMs were compared between groups, along with rates of achieving minimal clinically important difference (MCID) thresholds, Patient Acceptable Symptom State (PASS) thresholds, revision arthroscopy, and conversion to total hip arthroplasty (THA). RESULTS A total of 70 patients with lumbosacral pathology were coarsened exact matched to 87 control patients without spinal pathology. The HS cohort had preoperative baseline scores that were significantly worse for nearly all PROMs. Follow-ups at 3, 6, 12, and 24 months displayed similar trends, with the HS cohort demonstrating significantly worse scores for most collected outcomes. However, at every time point, HS and MC patients exhibited similar magnitudes of improvement across all PROM and pain metrics. Furthermore, while significantly fewer HS patients achieved PASS for nearly all PROMs at 12- and 24-month follow-ups, MCID thresholds were reached at similar or greater rates across all PROMs relative to the MC cohort. Finally, there were no significant differences in rates of revision or THA between cohorts at maximum available follow-up. CONCLUSION After hip arthroscopy to address labral tears in the setting of FAI, patients with symptomatic lumbosacral pathologies and no history of spine surgery were found to exhibit inferior pre- and postoperative PROMs but achieved statistically similar clinical benefit and rates of PROM improvement through 24-month follow-up compared with the MC cohort with isolated hip disease. These findings aid in providing a realistic recovery timeline and evidence that coexisting hip and spine disorders are not a contraindication for arthroscopic hip preservation surgery.
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Affiliation(s)
- Kaveh A. Torabian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Nathan J. Cherian
- Department of Orthopaedic Surgery, University of Nebraska, Omaha, Nebraska, USA
| | - Michael C. Dean
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Michael P. Kucharik
- Department of Orthopaedic Surgery, University of South Florida, Tampa, Florida, USA
| | - Kieran S. Dowley
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Zachary L. LaPorte
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Scott D. Martin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
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Cherian NJ, Eberlin CT, Kucharik MP, Abraham PF, Nazal MR, Dean MC, Martin SD. Labral Reconstruction via Capsular Augmentation Maintains Perfusion to the Acetabular Labrum and Locally Transferred Autograft: An in Vivo Laser Doppler Flowmetry Analysis. JB JS Open Access 2023; 8:e23.00026. [PMID: 37753110 PMCID: PMC10516391 DOI: 10.2106/jbjs.oa.23.00026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Background The purpose of the present study was to examine the effects of arthroscopic labral repair with capsular augmentation on blood flow in vivo with use of laser Doppler flowmetry (LDF) to measure microvascular perfusion of the labrum and autograft tissue. Methods The present prospective case series included patients ≥18 years old who underwent arthroscopic acetabular labral repair with capsular augmentation; all procedures were performed by a single surgeon between 2018 and 2022. The LDF probe measured microvascular blood flow flux within 1 mm3 of the surrounding labral and capsular tissue of interest. Mean baseline measurements of flux were compared with readings immediately following capsular elevation and after completing labral augmentation. Blood flux changes were expressed as the percent change from the baseline measurements. Results The present study included 41 patients (24 men [58.5%] and 17 women [41.5%]) with a mean age (and standard deviation) of 31.3 ± 8.4 years, a mean BMI of 24.6 ± 3.4 kg/m2, a mean lateral center-edge of angle 35.3° ± 4.9°, a mean Tönnis angle of 5.8° ± 5.8°, and a mean arterial pressure of 93.7 ± 10.9 mm Hg. Following capsular elevation, the mean percent change in capsular blood flow flux was significantly different from baseline (-9.24% [95% confidence interval (CI), -18.1% to -0.04%]; p < 0.001). Following labral augmentation, the mean percent change in labral blood flow flux was significantly different from baseline both medially (-22.3% [95% CI, -32.7% to -11.9%]; p < 0.001) and laterally (-32.5% [95% CI, -41.5% to -23.6%]; p = 0.041). There was no significant difference between the changes in medial and lateral perfusion following repair (p = 0.136). Conclusions Labral repair with capsular augmentation sustains a reduced blood flow to the native labrum and capsular tissue at the time of fixation. The biological importance of this reduction is unknown, but these findings may serve as a benchmark for other labral preservation techniques and support future correlations with clinical outcomes. Level of Evidence Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Nathan J. Cherian
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
- Department of Orthopaedic Surgery, University of Nebraska, Omaha, Nebraska
| | - Christopher T. Eberlin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
- Department of Orthopaedic Surgery, University of Iowa, Iowa City, Iowa
| | - Michael P. Kucharik
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
- Department of Orthopaedic Surgery, University of South Florida, Tampa, Florida
| | - Paul F. Abraham
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
- Department of Orthopaedic Surgery, University of Southern California, Los Angeles, California
| | - Mark R. Nazal
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky
| | - Michael C. Dean
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Scott D. Martin
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts
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Su T, Ao Y, Yang L, Chen GX. Tissue Integration and Chondroprotective Potential of Acetabular Labral Augmentation with Autograft Tendon: Study of a Porcine Model. J Bone Joint Surg Am 2023; 105:435-447. [PMID: 36728738 DOI: 10.2106/jbjs.22.00896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND The aim of this study was to explore the tissue healing process and changes in articular cartilage following acetabular labral augmentation in a porcine model. METHODS The labrum was resected unilaterally from 10 o'clock to 1 o'clock on the capsular side in 36 pigs. Eighteen pigs underwent labral augmentation (AUG group) using autologous Achilles tendon. No additional procedures were performed in the remaining pigs (control group). The pigs were killed at 6, 12, or 24 weeks postoperatively for histological assessment and measurement of the inflammatory cytokines interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α in synovial fluid. RESULTS All autografts were well placed in the labral defect in the AUG group, and good integration of the autograft with the remnant chondrolabral junction was observed at 24 weeks; only scar tissue was observed in the control group at 6, 12, and 24 weeks. Fibrochondrocytes were concentrated at the transition between the autograft and native labrum at early time points, and the cells within the autograft labrum were predominantly fibrochondrocytes at 24 weeks. Rough and irregular articular cartilage surfaces were observed in 3 of the 6 samples in the AUG group at 24 weeks; the others appeared smooth. Focal cartilage erosion (predominantly in the acetabulum) occurred in all samples in the control group at 12 and 24 weeks. The Mankin score at 24 weeks was significantly lower in the AUG group than in the control group (mean [95% confidence interval]: 2.33 [1.06 to 3.6] versus 9 [8.06 to 9.94], p < 0.001). Likewise, the concentrations of all cytokines (in pg/mL) were significantly lower in the AUG group than in the control group at 24 weeks (IL-6: 166.6 [155.22 to 177.94] versus 245.9 [242.66 to 249.14], p < 0.001; IL-1β: 122.1 [116.4 to 127.83] versus 282.9 [280.29 to 285.51], p < 0.001; and TNF-α: 56.22 [53.15 to 59.29] versus 135 [131.66 to 138.24], p < 0.001). CONCLUSIONS Autograft tendon used for labral augmentation was able to integrate well with the native labrum, which may help to preserve the articular cartilage. CLINICAL RELEVANCE Labral augmentation with autograft tendon may be a feasible option in cases of viable labral remnants.
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Affiliation(s)
- Tiao Su
- Center for Joint Surgery, Southwest Hospital, Army Medical University, Chongqing, People's Republic of China
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DeFroda SF, Hanish S, Muhammad M, Cook JL, Crist B. Graft Options for Hip Labral Reconstruction. JBJS Rev 2022; 10:01874474-202212000-00001. [PMID: 36480655 DOI: 10.2106/jbjs.rvw.22.00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
➢ Arthroscopic hip labral reconstruction is a complex procedure which is growing in use as indications, techniques, and surgical expertise advance. ➢ Graft selection is an important component of labral reconstruction based on relative advantages and disadvantages of available types of autografts and allografts. ➢ The ideal graft should mimic the native acetabular labrum form and function while also being affordable, readily available, and associated with low morbidity. ➢ High rates of patient satisfaction and positive patient-reported outcomes have been reported after labral reconstruction using several graft types.
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Affiliation(s)
- Steven F DeFroda
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri
| | - Stefan Hanish
- School of Medicine, University of Missouri, Columbia, Missouri
| | - Maaz Muhammad
- School of Medicine, University of Missouri, Columbia, Missouri
| | - James L Cook
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri
| | - Brett Crist
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopaedics, University of Missouri, Columbia, Missouri
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Kucharik MP, Abraham PF, Nazal MR, Varady NH, Eberlin CT, Meek WM, Martin SD. Arthroscopic Acetabular Labral Repair Versus Labral Debridement: Long-term Survivorship and Functional Outcomes. Orthop J Sports Med 2022; 10:23259671221109012. [PMID: 35837442 PMCID: PMC9274418 DOI: 10.1177/23259671221109012] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 05/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Arthroscopic treatment for labral tears includes debridement and repair.
Long-term studies have failed to demonstrate a difference between these
treatments in terms of conversion to total hip arthroplasty (THA). Purpose: To investigate 2 different labral treatments, debridement and repair, using
an adjusted analysis to evaluate long-term conversion to THA. Study Design: Cohort study; Level of evidence, 3. Methods: This was a retrospective cohort study of patients who underwent hip
arthroscopy by a single surgeon between April 2007 and October 2014.
Postoperative follow-up information included conversion to THA, patient
satisfaction, and patient-reported outcome measures (modified Harris Hip
Score; Hip Outcome Score, Activities of Daily Living and Sports Specific
subscales; International Hip Outcome Tool; Nonarthritic Hip Score; and Lower
Extremity Functional Scale). Results: Of the 204 hips included in the study, 99 (48.5%) underwent labral repair,
and 105 (51.5%) underwent debridement. In total, 28 (13.7%) of the 204
patients underwent conversion to THA within 10 years after hip arthroscopy
(labral repair: 5 [5.0%] vs labral debridement: 23 [21.9%]). Labral repair
was associated with a significantly lower risk of conversion to THA compared
with debridement (hazard ratio [HR] = 0.24; 95% CI, 0.07-0.74;
P = .014). Additional factors associated with risk of
conversion to THA included older age at the time of arthroscopy (HR = 1.06
per year; 95% CI, 1.02-1.11; P = .002) and Tönnis grade (HR
= 2.39; CI, 1.14-5.41; P = .026). Abrasion chondroplasty,
acetabuloplasty, body mass index, Outerbridge grade, and radiographic
femoroacetabular impingement were not found to be significantly associated
with risk of THA. No significant difference in patient satisfaction was
found between treatment groups, and for patients who did not convert to THA,
there was no difference in mean patient-reported outcome scores at final
follow-up. Conclusion: Patients who underwent labral repair were less likely to convert to THA
compared with patients who underwent labral debridement, despite adjustment
for differences in baseline patient characteristics and preexisting
pathology. Additional factors associated with a lower rate of hip survival
were older age and osteoarthritis at the time of hip arthroscopy.
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Affiliation(s)
- Michael P Kucharik
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Mass General Brigham, Boston, Massachusetts, USA
| | - Paul F Abraham
- Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Mark R Nazal
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky, USA
| | | | - Christopher T Eberlin
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Mass General Brigham, Boston, Massachusetts, USA
| | - Wendy M Meek
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Mass General Brigham, Boston, Massachusetts, USA
| | - Scott D Martin
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Mass General Brigham, Boston, Massachusetts, USA
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11
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Wirries N, Dienst M. [Labral lesions in femoroacetabular impingement syndrome: evidence-based treatment]. ORTHOPADIE (HEIDELBERG, GERMANY) 2022; 51:450-457. [PMID: 35507061 DOI: 10.1007/s00132-022-04253-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The acetabular labrum and the adjacent rim cartilage are the primary targets of primary or secondary degeneration processes in the hip joint. Currently, femoroacetabular impingement syndrome (FAIS) is considered the main mechanical pathology leading to chondrolabral damage. The treatment options for labrum tears range from a debridement/resection, repair to augmentation or transplantation. AIM Description of surgical treatment options for pathologic changes of the acetabulare labrum and their results with a focus on FAIS. MATERIALS AND METHODS A literature search was performed on https://pubmed.ncbi.nlm.nih.gov using the following key words: hip, labrum, therapy, resection, repair, augmentation, reconstruction. RESULTS The different surgical procedures as labrum therapy reduce pain and increase the joint function. Labral repair, augmentation, and reconstruction tend to have better results compared to resection but are associated with a higher rate of postoperative intraarticular adhesions. DISCUSSION In addition to reducing pain and improving function, the goal of surgical treatment of labrum lesions should be to maintain the functions of the labrum. The labrum should be preserved, in cases of adequate tissue quality and width. In the setting of resective procedures, the resection should be limited to the unstable parts of the labrum. The results of labral augmentation and reconstruction are promising, allowing these procedures to be considered for patients with ongoing symptoms in the revision situation with labral defects or an insufficient residual labrum.
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Affiliation(s)
- Nils Wirries
- Orthopädische Klinik, Medizinische Hochschule Hannover, DIAKOVERE Annastift, Anna-von Borries Str. 1-7, 30625, Hannover, Deutschland.
| | - Michael Dienst
- Orthopädische Chirurgie München (OCM), München, Deutschland
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12
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Eberlin CT, Kucharik MP, Martin SD. Acetabular Labral Tear with a Missed Posterior Wall Fracture in an Adolescent Athlete: A Case Report. JBJS Case Connect 2022; 12:01709767-202206000-00011. [PMID: 36099452 DOI: 10.2106/jbjs.cc.22.00117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
CASE We present an adolescent contact-sport athlete presenting with hip pain after a traumatic in-play event. After delayed clinical improvement, a magnetic resonance arthrogram (MRA) revealed a posterior acetabular labral tear and the patient was referred for arthroscopic repair. However, subsequent critical interpretation of the MRA demonstrated a missed concomitant posterior acetabular wall fracture, which was later confirmed with computed tomography. CONCLUSION Despite the low incidence of acetabular fractures in adolescents, this case report highlights the importance of maintaining clinical suspicion in young athletes after a traumatic injury, recognizing the association with labral tears, and acknowledging the limitations of certain imaging modalities.
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Affiliation(s)
- Christopher T Eberlin
- Sports Medicine Center, Department of Orthopaedics, Massachusetts General Hospital, Mass General Brigham, Boston, Massachusetts
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