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Helal A, El-Gebaly O, Hamed H, Omran AM, ELForse E. Periosteal wrapping of the hamstring tendon autograft improves graft healing and prevents tunnel widening after anterior cruciate ligament anatomic reconstruction. Arch Orthop Trauma Surg 2024; 144:2711-2722. [PMID: 38748257 PMCID: PMC11211196 DOI: 10.1007/s00402-024-05356-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 04/28/2024] [Indexed: 06/29/2024]
Abstract
INTRODUCTION The periosteum is a readily available tissue at the hamstring harvest site that could be utilized to enhance graft healing and prevent tunnel widening without additional cost or morbidity. This study aimed to compare graft healing using magnetic resonance imaging (MRI) and functional clinical outcome scores in a matched cohort of patients who underwent anterior cruciate ligament (ACL) reconstruction with hamstring autografts with or without periosteal augmentation. MATERIAL AND METHODS Forty-eight patients who underwent ACL reconstruction (ACLR) were prospectively enrolled: 25 with standard ACLR (ST-ACLR) and 23 with periosteal augmented grafts (PA-ACLR). The same surgical techniques, fixation methods, and postoperative protocol were used in both groups. Signal-to-noise quotient (SNQ), graft healing at the bone-graft interface, graft signal according to the Howell scale, and femoral tunnel widening were evaluated using MRI after 1 year of follow-up. International knee documentation score (IKDC), Lysholm, Tegner activity scale, and visual analog scale for pain were used for functional evaluation at a minimum of 2 years postoperative. RESULTS The mean SNQ of the proximal part of the graft was 9.6 ± 9.2 and 2.9 ± 3.3 for the ST-ACLR and PA-ACLR groups, respectively (P = 0.005). The mean femoral tunnel widening was 30.3% ± 18.3 and 2.3% ± 9.9 for the ST-ACLR, PA-ACLR groups, respectively (P < 0.001). Complete graft tunnel healing was observed in 65% and 28% of cases in the PA-ACLR and ST-ACLR groups, respectively. Both groups showed marked improvements in functional scores, with no statistically significant differences. CONCLUSION Periosteal wrapping of hamstring tendon autografts is associated with better graft healing and maturation and lower incidence of femoral tunnel widening based on MRI analysis 1 year after ACL reconstruction. However, patient-reported outcomes and measured laxity were similar between the two groups at 2 years follow up. TRIAL REGISTRATION Trail registration number: PACTR202308594339018, date of registration: 1/5/2023, retrospectively registered at the Pan African Clinical Trial Registry (pactr.samrc.ac.za) database.
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Affiliation(s)
- Ahmed Helal
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, Tanta, El-Gharbia Governorate, Egypt.
| | - Osama El-Gebaly
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, Tanta, El-Gharbia Governorate, Egypt
| | - Hany Hamed
- Department of Orthopaedics, Faculty of Medicine, Kafr El-Shaikh University, Kafr El Sheikh, Egypt
| | - Ali M Omran
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, Tanta, El-Gharbia Governorate, Egypt
| | - ElSayed ELForse
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, Tanta, El-Gharbia Governorate, Egypt
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Doorschodt TC, Smithuis FF, Helmerhorst GTT, Maas M. Postoperative Magnetic Resonance Imaging after Anterior Cruciate Ligament Reconstruction: An Overview and Practical Step-by-step Guide. Semin Musculoskelet Radiol 2024; 28:293-304. [PMID: 38768594 DOI: 10.1055/s-0044-1782207] [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: 05/22/2024]
Abstract
Anterior cruciate ligament (ACL) rupture is a frequently encountered injury among athletes, often requiring surgical intervention to restore knee stability. Magnetic resonance imaging (MRI) after ACL reconstruction is common, especially in the evaluation of clinical complications leading to knee instability, decreased range of motion, or pain. This article provides a detailed overview of normal and abnormal postoperative findings including a practical step-by-step guide for MRI assessment. MRI findings must be correlated with surgical technique, time interval from surgery to imaging, and clinical examination.
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Affiliation(s)
- Tom C Doorschodt
- Radiology and Nuclear Medicine, OLVG, Amsterdam, The Netherlands
| | - Frank F Smithuis
- Radiology and Nuclear Medicine, Location University of Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Gijs T T Helmerhorst
- Department of Orthopaedic Surgery Flevoziekenhuis, Almere, The Netherlands
- Department of Orthopaedic Surgery and Sports, Amsterdam UMC, Amsterdam, The Netherlands
| | - Mario Maas
- Radiology and Nuclear Medicine, Location University of Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Rehabilitation and Development, Amsterdam, The Netherlands
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3
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Vari N, Marot V, Ripoll T, Vieira TD, Martinel V, Bérard E, Cavaignac E. Preserving the Semitendinosus Distal Attachment Is Associated With Improved Graft Remodeling After ACL Reconstruction. Am J Sports Med 2023; 51:2064-2072. [PMID: 37204156 DOI: 10.1177/03635465231169047] [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: 05/20/2023]
Abstract
BACKGROUND The semitendinosus (ST) tendon can be used by itself as a graft for anterior cruciate ligament (ACL) reconstruction. An increasing number of these procedures are being done while preserving the ST's tibial attachment, but there are no data on the remodeling of an attached ST (aST) graft. PURPOSE To compare graft remodeling on magnetic resonance imaging (MRI) scans at 1 year after ACL reconstruction between standard free ST graft and aST graft. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS This prospective study enrolled 180 patients who were undergoing ACL reconstruction: 90 with the ST graft and 90 with the aST graft. The analysis was performed 1 year after the surgery. The main endpoint was the signal-to-noise quotient (SNQ) on MRI scans (T1-weighted sequence). The secondary endpoints were tibial tunnel widening (TTW), graft maturation (Howell classification), retear rate, new surgery rate, Simple Knee Value, Lysholm score, International Knee Documentation Committee (IKDC) score, postoperative Tegner score, difference between pre- and postoperative Tegner scores, ACL-Return to Sport after Injury (ACL-RSI), return-to-sports rate, and time to return to sports. RESULTS The mean adjusted SNQ was 1.18 (95% CI, 0.72-1.65) in the aST group and 3.88 (95% CI, 3.42-4.34) in the ST group (P < .001). The new surgery rate was 2.2% in the aST group and 10% in the ST group (P = .029). The median Lysholm score was significantly higher in the aST group (99; interquartile range [IQR], 95-100) than in the ST group (95; IQR, 91-99) (P = .004). The mean time to return to sports was significantly shorter in the aST group (248.73 ± 141.62 days) than the ST group (317.23 ± 144.69 days) (P = .002). No statistically significant difference was found between groups in the TTW (P = .503), Howell graft maturity grade (P = .149), retear rate (P > .999), Simple Knee Value (P = .061), postoperative Tegner score (P = .320), pre- to postoperative difference in Tegner score (P = .317), ACL-RSI (P = .097), IKDC score (P = .621), and return-to-sports rate (P > .999). CONCLUSION At 1 year postoperatively, remodeling of an ST graft assessed using MRI is better when its distal attachment is left intact.
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Affiliation(s)
- Nicolas Vari
- Musculoskeletal Institute, Hôpital Pierre Paul Riquet, CHU Toulouse, Toulouse, France
| | - Vincent Marot
- Orthopaedics Unit, Hospital Nostra Senyora de Meritxell, Escaldes-Engordany, Andorra
| | - Thomas Ripoll
- Musculoskeletal Institute, Hôpital Pasteur 2, CHU Nice, Nice, France
| | - Thais Dutra Vieira
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Vincent Martinel
- Orthopedic Group Ormeau Pyrénées, Polyclinique de l'Ormeau, Tarbes, France
| | - Emilie Bérard
- Department of Epidemiology, Health Economics and Public Health, UMR 1295 CERPOP, University of Toulouse, INSERM, UPS, Toulouse University Hospital (CHU), Toulouse, France
| | - Etienne Cavaignac
- Musculoskeletal Institute, Hôpital Pierre Paul Riquet, CHU Toulouse, Toulouse, France
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Valladares JR, Carvalho LC, Yanagihara GR, Rocha CBJ, Maia PR, Marino LDS, Iunes DH. Effect of kinesio-taping on the acute phase of the post-operative reconstruction of the anterior cruciate ligament: A randomized controlled trial. J Bodyw Mov Ther 2023; 35:320-325. [PMID: 37330787 DOI: 10.1016/j.jbmt.2023.04.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/02/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
OBJECTIVES Evaluate the Kinesio taping (KT) effects on reducing pain and edema on postoperative (PO) after anterior cruciate ligament (ACL) reconstruction. DESIGN Controlled and randomized clinical study. SETTINGS Individuals of both sexes, aged 18-45, underwent ACL reconstruction were randomized into intervention (IG; n = 19) and control (CG; n = 19) groups. METHODS Intervention consisted of KT bandage applications at hospital discharge for seven days, and on the 7th PO day, which was removed on the 14th PO. CG received specific instructions from the physiotherapy service. All volunteers were evaluations before and immediately after surgery, on the 7th and 14th PO day. Pain threshold (KgF), evaluated by algometer; edema (cm), evaluated by the perimetry measurements and volume of the lower limbs and the truncated cone test (ml) were the evaluated variables. The Student's t-test and Mann-Whitney U test were used to evaluate intergroup, analysis of variance (ANOVA) and Dunnett's test to evaluate intragroup. RESULTS Edema reduction and increased nociceptive threshold were significant in the 7th (p < 0.001; p = 0.003) and 14th (p < 0.001; p = 0.006) PO day in IG when compared to CG patients. IG perimetry levels, on the 7th and 14th PO were similar to preoperative period (p = 0.229; p = 1.000). IG nociceptive threshold value was similar on the 14th PO to before the surgery (p = 0.987). The same pattern did not occur in CG. CONCLUSION KT treatment reduced edema and increased nociceptive threshold in the 7th and 14th PO ACL reconstruction.
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Affiliation(s)
| | | | - Gabriela Rezende Yanagihara
- Department of Biomechanics, Medicine and Rehabilitation of the Locomotive Apparatus, Faculty of Medicine of Ribeirão PretoRP/University of São Paulo, Brazil
| | | | - Paulo Roberto Maia
- Graduate Program in Applied Health Sciences at the University of Sapucai Valley, Pouso Alegre, Brazil
| | - Lígia de Sousa Marino
- Rehabilitation Science Graduate Program, Federal University of Alfenas, Alfenas, Brazil.
| | - Denise Hollanda Iunes
- Rehabilitation Science Graduate Program, Federal University of Alfenas, Alfenas, Brazil.
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Weninger P, Thallinger C, Chytilek M, Hanel Y, Steffel C, Karimi R, Feichtinger X. Extracorporeal Shockwave Therapy Improves Outcome after Primary Anterior Cruciate Ligament Reconstruction with Hamstring Tendons. J Clin Med 2023; 12:jcm12103350. [PMID: 37240456 DOI: 10.3390/jcm12103350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/27/2023] [Accepted: 04/29/2023] [Indexed: 05/28/2023] Open
Abstract
PURPOSE The decision regarding the timepoint of a return to sports after anterior cruciate ligament (ACL) reconstruction is complex and depends on many factors, including objectively tested physical and psychological readiness as well as biological healing. The aim of this study was to investigate the influence of repetitive extracorporeal shockwave therapy (ESWT) on return-to-sports duration, clinical results and MRI results after ACL reconstruction with hamstring tendons (HT). MATERIAL AND METHODS In this prospective controlled study, all patients with acute ACL ruptures were treated by ACL reconstruction with HT. Patients were randomized into two groups (Group A: ESWT group; Group B: control group). Patients in the ESWT group received focused shockwave therapy 4, 5 and 6 weeks after ACL surgery. Follow-up investigations including IKDC score, Lysholm score, VAS and evaluation regarding return-to-sports timepoints that were conducted 3-, 6-, 9- and 12-months post-operation. An MRI investigation was performed 12-months post-operation and graft maturation (signal intensity ratio (SIR)) as well as femoral and tibial tunnel characteristics (bone marrow oedema, tunnel fluid effusion) were assessed. RESULTS In total, 65 patients (27.65 ± 7.07 years; 35 male/30 female) were included in this study. The mean timepoint for "return-to-pivoting-sports" was 27.92 weeks (±2.99) in the ESWT group as well as 42.64 weeks (±5.18) in the control group (p < 0.001). In the ESWT group 31 patients (vs. CONTROL GROUP n = 6) attained the "pre-injury activity level", whereas 6 patients (vs. CONTROL GROUP n = 22) did not reach this level within 12 months post-operation. The IKDC score, Lysholm score, and VAS showed significant improvement in the ESWT group compared with the control group for all time-points (p < 0.001). The mean SIR in the ESWT group revealed 1.81 (±0.88), whereas the control group showed a mean SIR of 2.68 (±1.04) (p < 0.01). DISCUSSION In conclusion, this is the first study investigating the effect of repetitive ESWT on ACL reconstruction with clinical outcome measurements, including the duration of return-to-sports activity and an MRI follow-up examination. Return-to-sports parameters, clinical scores and graft maturation were significantly improved in the ESWT group. This study may support an earlier return-to-sports timepoint by ESWT and is of high clinical relevance as ESWT is a cost-effective treatment option with no relevant side effects.
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Affiliation(s)
- Patrick Weninger
- Sports Medical Center, Am Hof 11/9, 1010 Vienna, Austria
- Döbling Private Clinic, Heiligenstädter Straße 55-63, 1190 Vienna, Austria
| | | | | | - Yannis Hanel
- Sports Medical Center, Am Hof 11/9, 1010 Vienna, Austria
| | | | - Ramin Karimi
- Döbling Private Clinic, Heiligenstädter Straße 55-63, 1190 Vienna, Austria
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MRI signal intensity of anterior cruciate ligament graft after transtibial versus anteromedial portal technique (TRANSIG): A randomised controlled clinical trial. Knee 2022; 39:143-152. [PMID: 36191401 DOI: 10.1016/j.knee.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 03/24/2022] [Accepted: 08/08/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Two primary surgical femoral drilling techniques are used to reconstruct the anterior cruciate ligament (ACL): the transtibial (TT) technique and the anteromedial portal (AMP) technique. Currently there is no consensus on which surgical technique elicits the best clinical and functional outcomes. MRI-derived measures of the signal intensity (SI) of the ACL graft have been described as an independent predictor of graft properties. The purpose of this study was to assess MRI-derived SI measurements of the ACL graft one year after ACL reconstruction, in order to compare graft maturation of both AMP and TT ACL reconstruction techniques. METHODS This randomised controlled trial included 33 patients admitted for primary unilateral ACL reconstruction. Primary outcome was MRI Signal intensity ratio (SIR) of the ACL graft one year after ACL reconstruction. Differences in MRI SIR were assessed on two MRI sequencies: sagittal Proton Density Turbo Spin Echo weighted images (PDTSE) and 3D T2 Gradient Echo (T2*) weighted images. Analysis of interobserver and intraobserver variability was conducted for the SIR measurements. RESULTS No difference in signal intensity of the graft was found between the TT and AMP techniques one year after ACL reconstruction (PDTSE p = 0.665, T2* p = 0.957). Both interobserver and intraobserver variability showed strong agreement (ICC 0.64-0.94). CONCLUSION No differences in signal intensity of the graft on MRI were seen between the femoral drilling techniques one year after ACL reconstruction, suggesting similar graft maturation at that time. Follow-up studies are needed to determine whether graft intensity changes in the long term. LEVEL OF EVIDENCE Therapeutic study with level of evidence I.
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7
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Dianat S, Bencardino JT. Postoperative Magnetic Resonance Imaging of the Knee Ligaments. Magn Reson Imaging Clin N Am 2022; 30:703-722. [DOI: 10.1016/j.mric.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Ligamentization of the reconstructed ACL differs between the intraarticular and intraosseous regions: A quantitative assessment using UTE-T2* mapping. PLoS One 2022; 17:e0271935. [PMID: 35867680 PMCID: PMC9307199 DOI: 10.1371/journal.pone.0271935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 07/08/2022] [Indexed: 11/20/2022] Open
Abstract
Background The purpose of this study was to prospectively observe the trends of ultrashort echo time (UTE)-T2* values for the intraarticular and intraosseous regions of reconstructed anterior cruciate ligaments from 6 to 12 months after anterior cruciate ligament reconstruction by using UTE-T2* mapping, and to investigate the changes and differences over time in each region. Methods Ten patients underwent UTE-T2* mapping of the operated knee at 6, 9, and 12 months after anterior cruciate ligament reconstruction. The UTE-T2* values of intraarticular and intraosseous regions of reconstructed anterior cruciate ligaments at 6, 9, and 12 months postoperatively were statistically compared. Results The UTE-T2* values of the intraarticular region at 6 months postoperatively were significantly higher than those at 9 and 12 months. There were no significant differences in the UTE-T2* values at 6, 9, and 12 months postoperatively in the intraosseous region. At 6 months postoperatively, the UTE-T2* values of the intraarticular region were significantly higher than those of the intraosseous region. The UTE-T2* values of the intraosseous region at the tibia were significantly lower than those of the other sites at any postoperative time point. Conclusions According to UTE-T2*mapping-based findings, histological maturation of reconstructed ACLs is faster in the intraosseous region than in the intraarticular region. In particular, the intraarticular region is still undergoing rapid histologic changes at 6 months postoperatively, and its tissue structure is less substantial than normal. The findings of this study may provide clues to determine the optimal timing for safe return to sports in terms of ligamentaization of reconstructed ACLs.
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Putnis SE, Klasan A, Oshima T, Grasso S, Neri T, Coolican MRJ, Fritsch BA, Parker DA. Magnetic Resonance Imaging Assessment of Hamstring Graft Healing and Integration 1 and Minimum 2 Years after ACL Reconstruction. Am J Sports Med 2022; 50:2102-2110. [PMID: 35612835 DOI: 10.1177/03635465221096672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND An increase has been seen in the number of studies of anterior cruciate ligament reconstruction (ACLR) that use magnetic resonance imaging (MRI) as an outcome measure and proxy for healing and integration of the reconstruction graft. Despite this, the MRI appearance of a steady-state graft and how long it takes to achieve such an appearance have not yet been established. PURPOSE To establish whether a hamstring tendon autograft for ACLR changes in appearance on MRI scans between 1 and 2 years and whether this change affects a patient's ability to return to sports. STUDY DESIGN Case series; Level of evidence, 4. METHODS Patients with hamstring tendon autograft ACLR underwent MRI and clinical outcome measures at 1 year and at a final follow-up of at least 2 years. MRI graft signal was measured at multiple regions of interest using oblique reconstructions both parallel and perpendicular to the graft, with lower signal indicative of better healing and expressed as the signal intensity ratio (SIR). Changes in tunnel aperture areas were also measured. Clinical outcomes were side-to-side anterior laxity and patient-reported outcome measures (PROMs). RESULTS A total of 42 patients were included. At 1 year, the mean SIR for the graft was 2.7 ± 1.2. Graft SIR of the femoral aperture was significantly higher than that of the tibial aperture (3.4 ± 1.3 vs 2.6 ± 1.8, respectively; P = .022). Overall, no significant change was seen on MRI scans after 2 years; a proximal graft SIR of 1.9 provided a sensitivity of 96% to remain unchanged. However, in the 6 patients with the highest proximal graft SIR (>4) at 1 year, a significant reduction in signal was seen at final follow-up (P = .026), alongside an improvement in sporting level. A significant reduction in aperture area was also seen between 1 and 2 years (tibial, -6.3 mm2, P < .001; femoral, -13.3 mm2, P < .001), which was more marked in the group with proximal graft SIR >4 at 1 year and correlated with a reduction in graft signal. The patients had a high sporting level; the median Tegner activity score was 6 (range, 5-10), and a third of patients scored either 9 or 10. Overall, PROMs and knee laxity were not associated with MRI appearance. CONCLUSION In the majority of patients, graft SIR on MRI did not change significantly after 1 year, and a proximal graft SIR <2 was a sensitive indicator for a stable graft signal, implying healing. Monitoring is proposed for patients who have a high signal at 1 year (proximal graft SIR >4), because a significant reduction in signal was seen in the second year, indicative of ongoing healing, alongside an improvement in sporting level. A reduction in tunnel aperture area correlated with a reduction in graft SIR, suggesting this could also be a useful measure of graft integration.
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Affiliation(s)
- Sven E Putnis
- Avon Orthopaedic Centre, Bristol, UK.,University Hospitals Bristol & Weston NHS Foundation Trust, UK
| | | | - Takeshi Oshima
- Department of Orthopaedic Surgery, Kanazawa University, Kanazawa, Japan.,Asanogawa General Hospital, Kanazawa, Japan
| | - Samuel Grasso
- University of Sydney, Sydney, Australia.,Sydney Orthopaedic Research Institute, Sydney, Australia
| | - Thomas Neri
- Laboratory of Human Movement Science, University of Lyon - University Jean Monnet, Saint Etienne, France.,Department of Orthopaedic Surgery, University Hospital of Saint-Etienne, France
| | | | | | - David A Parker
- University of Sydney, Sydney, Australia.,Sydney Orthopaedic Research Institute, Sydney, Australia
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10
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Sheean AJ. Editorial Commentary: Bone Marrow Aspirate Concentrate May Accelerate Anterior Cruciate Ligament Allograft Using Bone Patellar Tendon Bone Maturation on Magnetic Resonance Imaging, but Clinical Differences Have Not Been Demonstrated. Arthroscopy 2022; 38:2265-2267. [PMID: 35809981 DOI: 10.1016/j.arthro.2022.03.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 02/02/2023]
Abstract
Accelerating graft healing in anterior cruciate ligament reconstruction (ACLR) continues to be an elusive proposition. In vivo assessments of graft histology are challenging to perform, especially in human subjects. Multiple authors have reported on the utility of magnetic resonance imaging as a noninvasive modality in characterizing postoperative changes, suggestive of graft maturation. However, previous literature, by and large, has been limited by heterogenous scanning protocols and underpowered comparisons of dissimilar treatment techniques, and these issues complicate efforts to assess the benefits (if any) of adjuncts focused on improving graft healing after ACLR. Particularly in cases of allograft ACLR, where concerns persist regarding the pace and quality of tissue healing and graft integration, the use of orthobiologic adjuncts represents a promising area for ongoing investigation. Although there has been great enthusiasm for the use of bone marrow aspirate concentrate as an adjunct in a variety of applications, high level evidence substantiating its use in ACLR is lacking. Even when significant differences between groups treated with and without such adjuncts may be apparent radiographically, demonstrating a concrete, clinical benefit will continue to be a difficult proposition.
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11
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Franciozi CE, Minami FK, Ambra LF, Galvão PHSAF, Schumacher FC, Kubota MS. Remnant preserving ACL reconstruction with a functional remnant is related to improved laxity but not to improved clinical outcomes in comparison to a nonfunctional remnant. Knee Surg Sports Traumatol Arthrosc 2022; 30:1543-1551. [PMID: 33893826 DOI: 10.1007/s00167-021-06572-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 04/06/2021] [Indexed: 12/13/2022]
Abstract
PURPOSE The Anterior cruciate ligament (ACL) remnant has been pointed out as a ligamentization enhancer. Nonetheless, the remaining tissue can be functional if it still provides some stability or nonfunctional. This study intends to compare the clinical results and knee stability of functional vs. nonfunctional remnant preservation ACL reconstruction (ACLR). METHODS One hundred and seventy-five patients with ACL injuries were included and underwent remnant preservation ACLR. They were divided into two groups accordingly to remnant tissue functionality: functional (Group F) and nonfunctional (Group NF). Primary outcome was defined as patient reported outcomes measured with Lysholm, IKDC and Tegner continuous scales and improvements. Secondary outcomes comprised of Lachman test, anterior drawer test, pivot shift test, extension and flexion deficit, graft coverage by remnant preserved tissue and failure rate (persistent instability or new ACL lesion). Menisci lesions, cartilage lesions and time to surgery were also recorded for each group. RESULTS One hundred and forty-four patients were available at a mean of 30.2 ± 10.1 months: 69 Functional and 75 Nonfunctional. Lysholm, IKDC and Tegner functional outcomes demonstrated no difference between the groups, Functional compared to Nonfunctional: 88.4 ± 10.5 vs. 92.2 ± 4.9, n.s. and 83.2 ± 11.3 vs. 87 ± 5.3, n.s. and 6 (5-10) vs. 6 (5-9), n.s., respectively. Lysholm and IKDC functional outcomes improvements demonstrated differences between the groups: Functional compared to Nonfunctional (39.3 ± 9.4 vs. 42.3 ± 7.4, p = 0.014 and 37.7 ± 10 vs. 41.0 ± 6.6, p = 0.032); however, they were not clinically significant. Functional group showed more stability on physical examination pre- and post-operatively (p < 0.001, p < 0.001). There was no difference regarding extension deficit (n.s.); however, functional group had more flexion deficit (p = 0.02). Nonfunctional group had better graft coverage (p = 0.001). There was no difference regarding failure rate: 4% vs. 9%, (n.s.). CONCLUSION Both remnant preservation ACLR techniques were able to achieve satisfactory functional outcomes. A functional remnant was not related to improved functional outcomes in comparison to a nonfunctional remnant; however, it was related to less laxity pre and postoperatively and inferior graft coverage. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Carlos Eduardo Franciozi
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Napoleão de Barros Street, 715, 5th Fl, Vila Clementino, São Paulo, Brazil.,Knee Institute - Heart Hospital (Hospital do Coração - Hcor), São Paulo, Brazil.,Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Flávio Kazuo Minami
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Napoleão de Barros Street, 715, 5th Fl, Vila Clementino, São Paulo, Brazil.
| | - Luiz Felipe Ambra
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Napoleão de Barros Street, 715, 5th Fl, Vila Clementino, São Paulo, Brazil
| | - Pedro Henrique Schmidt Alves Ferreira Galvão
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Napoleão de Barros Street, 715, 5th Fl, Vila Clementino, São Paulo, Brazil
| | - Felipe Conrado Schumacher
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Napoleão de Barros Street, 715, 5th Fl, Vila Clementino, São Paulo, Brazil
| | - Marcelo Seiji Kubota
- Department of Orthopaedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Napoleão de Barros Street, 715, 5th Fl, Vila Clementino, São Paulo, Brazil
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12
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Fukuda H, Ogura T, Asai S, Omodani T, Takahashi T, Yamaura I, Sakai H, Saito C, Tsuchiya A, Takahashi K. Bone-patellar tendon-bone autograft maturation is superior to double-bundle hamstring tendon autograft maturation following anatomical anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2022; 30:1661-1671. [PMID: 34424354 DOI: 10.1007/s00167-021-06653-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 07/01/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE The primary purpose of this study was to evaluate the second-look arthroscopic findings 1 year postoperatively and magnetic resonance imaging (MRI) findings 2 years after anterior cruciate ligament reconstruction (ACLR) using bone-patellar tendon-bone autograft (BTB) or hamstring tendon autograft (HT). Secondary purpose included clinical results from physical examination, including range of motion, Lachman test, pivot shift test, and knee anterior laxity evaluation, and the clinical score for subjective evaluations at 2 years after surgery. METHODS Between 2015 and 2018, 75 patients with primary ACL injuries were divided into either the BTB group (n = 30) or HT group (n = 45). When using HT, an anatomical double-bundle ACLR was performed. BTB was indicated for athletes with sufficient motivation to return to sporting activity. Graft maturation on second-look arthroscopy was scored in terms of synovial coverage and revascularization. All participants underwent postoperative MRI evaluation 2 years postoperatively. The signal intensity (SI) characteristics of the reconstructed graft were evaluated using oblique axial proton density-weighted MR imaging (PDWI) perpendicular to the grafts. The signal/noise quotient (SNQ) was calculated to quantitatively determine the normalized SI. For clinical evaluation, the Lachman test, pivot shift test, KT-2000 evaluation, Lysholm score, and Knee injury and Osteoarthritis Outcome Score (KOOS) were used. RESULTS Arthroscopic findings showed that the graft maturation score in the BTB group (3.6 ± 0.7) was significantly greater than that in the anteromedial bundle (AMB; 2.9 ± 0.2, p = 0.02) and posterolateral bundle (PLB; 2.0 ± 0.9, p = 0.001) in the HT group. The mean MRI-SNQs were as follows: BTB, 2.3 ± 0.5; AMB, 2.9 ± 0.9; and PLB, 4.1 ± 1.1. There were significant differences between BTB, AMB, and PLB (BTB and AMB: p = 0.04, BTB and PLB: p = 0.003, AMB and PLB: p = 0.03). Second-look arthroscopic maturation score and MRI-SNQ value significantly correlated for BTB, AMB, and PLB. No significant differences were detected in clinical scores. There was a significant difference (p = 0.02) in the knee laxity evaluation (BTB: 0.9 ± 1.1 mm; HT: 2.0 ± 1.9 mm). CONCLUSION BTB maturation is superior to that of double-bundle HT based on morphological and MRI evaluations following anatomical ACLR, although no significant differences were found in clinical scores. Regarding clinical relevance, the advantages of BTB may help clinicians decide on using the autograft option for athletes with higher motivation to return to sporting activity because significant differences were observed in morphological evaluation, MRI assessment, and knee anterior laxity evaluation between BTB and double-bundle HT. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Hideaki Fukuda
- Funabashi Orthopaedic Hospital Sports Medicine Center, 1-833 Hazama Funabashi-shi, Chiba, 274-0822, Japan.
| | - Takahiro Ogura
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Shigehiro Asai
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Toru Omodani
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Tatsuya Takahashi
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Ichiro Yamaura
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Hiroki Sakai
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Chikara Saito
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Akihiro Tsuchiya
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
| | - Kenji Takahashi
- Sports Medicine and Joint Center, Funabashi Orthopaedic Hospital, 1-833 Hasama, Funabashi, Chiba, 274-0822, Japan
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13
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Chu CR. Can we afford to ignore the biology of joint healing and graft incorporation after ACL reconstruction? J Orthop Res 2022; 40:55-64. [PMID: 34314066 DOI: 10.1002/jor.25145] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/23/2021] [Accepted: 07/01/2021] [Indexed: 02/04/2023]
Abstract
Anterior cruciate ligament (ACL) reconstruction is successful at restoring stability to return ACL injured patients to high-demand work, sports, and recreational activities. The development of posttraumatic osteoarthritis (OA) in roughly half of patients just 10-15 years after ACLR highlight the need to improve clinical care pathways. Graft failure and reinjury rates, which further increase OA risk, also remain high for younger and more active patients. The biological components of joint recovery and graft incorporation, therefore, impact short- and long-term clinical outcomes. Biochemical and magnetic resonance imaging (MRI) data show substantial compromise of articular cartilage metabolism and matrix composition after ACL injury and reconstructive surgery suggesting a potential need for activity modulation in early recovery. Furthermore, joint recovery is variable with compositional MRI studies showing progressive cartilage degeneration 1 and 2 years after ACLR. Biopsy and MRI studies also show high variability in ACL graft characteristics within the 1st year after ACLR followed by continued graft maturation into the 2nd year and beyond. To improve the care of ACL injured patients, there is a critical need for clinical attention and scientific inquiry into timing the reintroduction of higher load activities in relationship to neuromuscular recovery, joint biology, and graft maturation. In addition to symptomatic and mechanical recovery, development and validation of biological markers for joint and cartilage homeostasis as well as ACL graft healing are needed for personalized decision making on rehabilitation needs, reduction of OA risk, and resumption of athletic, recreational, and vocational activities.
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Affiliation(s)
- Constance R Chu
- Department Orthopaedic Surgery, Stanford University, Stanford, California, USA.,Veterans Affairs Palo Alto Healthcare System, Livermore, California, USA
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14
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Saito M, Morikawa T, Iwasaki J, Hosokawa H, Sakamoto T, Nakagawa K, Sasho T. Influence of Age on Signal Intensity of Magnetic Resonance Imaging and Clinical Outcomes in Double-Bundle Anterior Cruciate Ligament Reconstruction: Comparisons Among Different Age Groups. Am J Sports Med 2022; 50:93-102. [PMID: 34825843 DOI: 10.1177/03635465211059158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Thus far, the clinical results of anterior cruciate ligament (ACL) reconstruction have been observed to be comparable between young and older patients. In contrast, age-related changes in the structural and mechanical properties of tendons used for autografts have been described. However, age-related changes associated with graft maturation remain poorly understood. HYPOTHESES The hypotheses of this study were that (1) clinical outcomes after ACL reconstruction would be comparable between younger and relatively older patients and (2) younger patients would show lower signal intensity changes on magnetic resonance imaging scans indicative of graft maturation that would be better than that in relatively older patients. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS We retrospectively evaluated 236 patients who underwent double-bundle ACL reconstruction via the outside-in technique using hamstring autograft between January 2012 and December 2015. The patients were categorized by age into 3 groups: <20 years old, 20 to 39 years old, and ≥40 years old. Clinical outcomes were evaluated using the subjective International Knee Documentation Committee (IKDC) score, Tegner activity scale, Lysholm score, and objective assessment of joint laxity 24 months after surgery. In addition, graft maturation was evaluated using magnetic resonance imaging-derived measures of the signal intensity ratio (SIR) at 3, 6, 12, and 24 months postoperatively. Clinical outcomes and graft maturation were compared among the 3 groups. RESULTS The SIR of both bundles increased from 3 months to 12 months and decreased by 24 months, showing the same tendency in all groups. No significant difference was found in the SIR among the 3 groups at any time point (P > .05). The IKDC score was significantly lower in the ≥40-year group than in the <20-year group (P < .01). In contrast, no significant differences were noted in other clinical outcomes. CONCLUSION Patients aged ≥40 years exhibited lower IKDC scores compared with younger patients, although the results of graft maturation were comparable.
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Affiliation(s)
- Masahiko Saito
- Department of Orthopaedic Surgery, Chiba Medical Center, Chiba, Japan
| | - Tsuguo Morikawa
- Department of Orthopaedic Surgery, Chiba Medical Center, Chiba, Japan
| | - Junichi Iwasaki
- Department of Orthopaedic Surgery, Chiba Medical Center, Chiba, Japan
| | - Hiroaki Hosokawa
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takuya Sakamoto
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Koichi Nakagawa
- Department of Orthopaedic Surgery, Toho University Sakura Medical Center, Chiba, Japan
| | - Takahisa Sasho
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
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15
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Lutz PM, Achtnich A, Schütte V, Woertler K, Imhoff AB, Willinger L. Anterior cruciate ligament autograft maturation on sequential postoperative MRI is not correlated with clinical outcome and anterior knee stability. Knee Surg Sports Traumatol Arthrosc 2022; 30:3258-3267. [PMID: 34739559 PMCID: PMC9464175 DOI: 10.1007/s00167-021-06777-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/18/2021] [Indexed: 01/22/2023]
Abstract
PURPOSE Magnetic resonance imaging (MRI) signal intensity is correlated to structural postoperative changes of the anterior cruciate ligament (ACL) autograft. The purpose of this study was to investigate the ACL autograft maturation process via MRI over 2 years postoperatively, compare it to a native ACL signal and correlate the results with clinical outcome, return to preinjury sports levels, and knee laxity measurements. METHODS ACL autograft signal intensity was measured in 17 male patients (age, 28.3 ± 7.0 years) who underwent ACL reconstruction with hamstring autograft at 6 weeks, 3-, 6-, 12-, and 24 months postoperatively by 3 Tesla MRI. Controls with an intact ACL served as control group (22 males, 8 females; age, 26.7 ± 6.8 years). An ACL/PCL ratio (APR) and ACL/muscle ratio (AMR) was calculated to normalize signals to soft tissue signal. APR and AMR were compared across time and to native ACL signal. Clinical outcome scores (IKDC, Lysholm), return to preinjury sports levels (Tegner activity scale), and knee laxity measurement (KT-1000) were obtained and correlated to APR and AMR at the respective time points. RESULTS The APR and AMR of the ACL graft changed significantly from the lowest values at 6 weeks to reach the highest intensity after 6 months (p < 0.001). Then, the APR and AMR were significantly different from a native ACL 6 months after surgery (p < 0.01) but approached the APR and AMR of the native ACL at 1- and 2 years after surgery (p < 0.05). The APR changed significantly during the first 2 years postoperatively in the proximal (p < 0.001), mid-substance (p < 0.001), and distal (p < 0.01) intraarticular portion of the ACL autograft. A hypo-intense ACL MRI signal was associated with return to the preinjury sports level (p < 0.05). No correlation was found between ACL MRI graft signal and clinical outcome scores or KT-1000 measurements. CONCLUSION ACL grafts undergo a continuous maturation process in the first 2 years after surgery. The ACL graft signals became hyper-intense 6 months postoperatively and approximated the signal of a native intact ACL at 12- and 24 months. Patients with a hypo-intense ACL graft signal at 2 years follow-up were more likely to return to preinjury sports levels. The results of the present study provide a template for monitoring the normal ACL maturation process via MRI in case of prolonged clinical symptoms. However, subjective outcome and clinical examination of knee laxity remain important to assess the treatment success and to allow to return to sports. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Patricia M. Lutz
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Andrea Achtnich
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Vincent Schütte
- Department for Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Strasse 40, 06120 Halle (Saale), Germany
| | - Klaus Woertler
- Department of Diagnostic and Interventional Radiology, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Andreas B. Imhoff
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Lukas Willinger
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
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16
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A Comprehensive Framework to Evaluate the Effects of Anterior Cruciate Ligament Injury and Reconstruction on Graft and Cartilage Status through the Analysis of MRI T2 Relaxation Time and Knee Laxity: A Pilot Study. Life (Basel) 2021; 11:life11121383. [PMID: 34947914 PMCID: PMC8706566 DOI: 10.3390/life11121383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/01/2021] [Accepted: 12/08/2021] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Anterior cruciate ligament (ACL) tear represents a common orthopedic traumatic issue that often leads to an early development of osteoarthritis. To improve the diagnostic and prognostic techniques involved in the assessment of the joint after the trauma and during the healing process, the present work proposes a multi-parametric approach that aims to investigate the relationship between joint function and soft tissue status before and after ACL reconstruction. METHODS Thirteen consecutive patients who underwent ACL reconstruction were preliminarily enrolled in this study. Joint laxity assessment as well as magnetic resonance imaging with T2 mapping were performed in the pre-operative stage, at four and 18 months after surgery to acquire objective information to correlate knee function and soft tissue condition. RESULTS Correlations were found between graft and cartilage T2 signal, suggesting an interplay between these tissues within the knee joint. Moreover, graft maturation resulted in being connected to joint laxity, as underlined by the correlation between the graft T2 signal and the temporal evolution of knee function. CONCLUSIONS This preliminary study represents a step forward in assessing the effects of ACL graft maturation on knee biomechanics, and vice versa. The presented integrated framework underlines the possibility to quantitatively assess the impact of ACL reconstruction on trauma recovery and cartilage homeostasis. Moreover, the reported findings-despite the preliminary nature of the clinical impacts-evidence the possibility of monitoring the surgery outcomes using a multi-parametric prognostic investigation tool.
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17
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Chona D, Eriksson K, Young SW, Denti M, Sancheti PK, Safran M, Sherman S. Return to sport following anterior cruciate ligament reconstruction: the argument for a multimodal approach to optimise decision-making: current concepts. J ISAKOS 2021; 6:344-348. [PMID: 34088854 DOI: 10.1136/jisakos-2020-000597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 11/03/2022]
Abstract
Existing literature is varied in the methods used to make this determination in the treatment of athletes who have undergone recent anterior cruciate ligament (ACL) reconstruction. Some authors report using primarily time-based criteria, while others advocate for physical measures and kinematic testing to inform decision-making. The goal of this paper is to elucidate the most current medical evidence regarding identification of the earliest point at which a patient may safely return to sport. The present review therefore seeks to examine the evidence from a critical perspective-breaking down the biology of graft maturation, effect of graft choice, potential for image-guided monitoring of progression and results associated with time-based versus functional criteria-based return to play-to justify a multifactorial approach to effectively advance athletes to return to sport. The findings of the present study reaffirm that time is a prerequisite for the biological progression that must occur for a reconstructed ligament to withstand loads demanded by athletes during sport. Modifications of surgical techniques and graft selection may positively impact the rate of graft maturation, and evidence suggests that imaging studies may offer informative data to enhance monitoring of this process. Aspects of both functional and cognitive testing have also demonstrated utility in prior studies and consequently have been factored into modern proposed methods of determining the athlete's readiness for sport. Further work is needed to definitively determine the optimal method of clearing an athlete to return to sport after ACL reconstruction. Evidence to date strongly suggests a role of a multimodal algorithmic approach that factors in time, graft biology and functional testing in return-to-play decision-making after ACL reconstruction.Level of evidence: level V.
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Affiliation(s)
- Deepak Chona
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Karl Eriksson
- Orthopedic Surgery, Stockholm South Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Simon W Young
- North Shore Hospital, University of Auckland, Auckland, New Zealand
| | - Matteo Denti
- Institute for Hospitalization and Care Scientific Galeazzi Orthopaedic Institute, Milano, Italy
| | - Parag K Sancheti
- Sancheti Institute for Orthopaedics and Rehabilitation, Pune, Maharashtra, India
| | - Marc Safran
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Seth Sherman
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
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18
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Putnis SE, Oshima T, Klasan A, Grasso S, Neri T, Fritsch BA, Parker DA. Magnetic Resonance Imaging 1 Year After Hamstring Autograft Anterior Cruciate Ligament Reconstruction Can Identify Those at Higher Risk of Graft Failure: An Analysis of 250 Cases. Am J Sports Med 2021; 49:1270-1278. [PMID: 33630656 DOI: 10.1177/0363546521995512] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND There is currently no analysis of 1-year postoperative magnetic resonance imaging (MRI) that reproducibly evaluates the graft of a hamstring autograft anterior cruciate ligament reconstruction (ACLR) and helps to identify who is at a higher risk of graft rupture upon return to pivoting sports. PURPOSE To ascertain whether a novel MRI analysis of ACLR at 1 year postoperatively can be used to predict graft rupture, sporting level, and clinical outcome at a 1-year and minimum 2-year follow-up. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS Graft healing and integration after hamstring autograft ACLR were evaluated using the MRI signal intensity ratio at multiple areas using oblique reconstructions both parallel and perpendicular to the graft and tunnel apertures. Clinical outcomes were assessment of side-to-side laxity and International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, Lysholm, and Tegner activity level scores at 1 year. Repeat outcome measures and detection of graft rupture were evaluated at a minimum of 2 years. RESULTS A total of 250 patients (42.4% female) underwent MRI analysis at 1 year, and assessment of 211 patients between 1 year and the final follow-up (range, 24-36 months) detected 9 graft ruptures (4.3%; 5 in female patients). A significant predictor for graft rupture was a high signal parallel to the proximal intra-articular graft and perpendicular to the femoral tunnel aperture (P = .032 and P = .049, respectively), with each proximal graft signal intensity ratio (SIR) increase by 1 corresponding to a 40% increased risk of graft rupture. A cutoff SIR of 4 had a sensitivity and specificity of 66% and 77%, respectively, in the proximal graft and 88% and 60% in the femoral aperture. In all patients, graft signal adjacent to and within the tibial tunnel aperture, and in the mid intra-articular portion, was significantly lower than that for the femoral aperture (P < .001). A significant correlation was seen between the appearance of higher graft signal on MRI and those patients achieving top sporting levels by 1 year. CONCLUSION ACLR graft rupture after 1 year is associated with MRI appearances of high graft signal adjacent to and within the femoral tunnel aperture. Patients with aspirations of quickly returning to a high sporting level may benefit from MRI analysis of graft signal. Graft signal was highest at the femoral tunnel aperture, adding further radiographic evidence that the rate-limiting step to graft healing occurs proximally.
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Affiliation(s)
- Sven E Putnis
- Sydney Orthopaedic Research Institute, Sydney, Australia.,Avon Orthopaedic Centre, Southmead Hospital, Bristol, UK
| | - Takeshi Oshima
- Sydney Orthopaedic Research Institute, Sydney, Australia.,Department of Orthopaedic Surgery, Kanazawa University, Kanazawa, Japan
| | - Antonio Klasan
- Sydney Orthopaedic Research Institute, Sydney, Australia.,Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Linz, Austria.,Johannes Kepler University Linz, Linz, Austria
| | - Samuel Grasso
- Sydney Orthopaedic Research Institute, Sydney, Australia.,University of Sydney, Sydney, Australia
| | - Thomas Neri
- Sydney Orthopaedic Research Institute, Sydney, Australia.,Laboratory of Human Movement Biology (LIBM EA 7424), University of Lyon-Jean Monnet, Saint Etienne, France
| | | | - David A Parker
- Sydney Orthopaedic Research Institute, Sydney, Australia.,University of Sydney, Sydney, Australia
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19
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Shen X, Qin Y, Zuo J, Liu T, Xiao J. A Systematic Review of Risk Factors for Anterior Cruciate Ligament Reconstruction Failure. Int J Sports Med 2021; 42:682-693. [PMID: 33784786 DOI: 10.1055/a-1393-6282] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Although most studies have introduced risk factors related to anterior cruciate ligament reconstruction failure, studies on combinations of high-risk factors are rare. To provide a systematic review of the risk factors of anterior cruciate ligament reconstruction failure to guide surgeons through the decision-making process, an extensive literature search was performed of the Medline, Embase and Cochrane Library databases. Studies published between January 1, 2009, and September 19, 2019, regarding the existing evidence for risk factors of anterior cruciate ligament reconstruction failure or graft failure were included in this review. Study quality was evaluated with the quality index. Ultimately, 66 articles met our criteria. There were 46 cases classified as technical factors, 21 cases as patient-related risk factors, and 14 cases as status of the knee joint. Quality assessment scores ranged from 14 to 24. This systematic review provides a comprehensive summary of the risk factors for anterior cruciate ligament reconstruction failure, including technical factors, patient-related factors, and the factors associated with the status of the knee joint. Emphasis should be placed on avoiding these high-risk combinations or correcting modifiable risk factors during preoperative planning to reduce the rate of graft rupture and anterior cruciate ligament reconstruction failure.
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Affiliation(s)
- Xianyue Shen
- Department of Orthopedics,The Second Hospital of Jilin University, Changchun, China
| | - Yanguo Qin
- Department of Orthopedics,The Second Hospital of Jilin University, Changchun, China
| | - Jianlin Zuo
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Tong Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jianlin Xiao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
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20
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Hamstring grafts for anterior cruciate ligament reconstruction show better magnetic resonance features when tibial insertion is preserved. Knee Surg Sports Traumatol Arthrosc 2021; 29:507-518. [PMID: 32266415 DOI: 10.1007/s00167-020-05948-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 03/19/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE Comparing the MRI features of the grafts between a group of patients treated with an over-the-top anterior cruciate ligament reconstruction technique that preserves the hamstring attachment and a control group with a classical reconstruction technique. METHODS Patients were assigned to a standard reconstruction technique or an Over-the-top plus lateral plasty technique. All patients underwent preoperative, 4-months and 18-months MRI; together with a clinical evaluation with KOOS and KT1000 laxity assessment. MRI study involved different parameters: the "Graft" was evaluated with the continuity, Howell Grading system, presence of liquid and signal noise quotient. The "Tibial Tunnel" was evaluated with the signal noise quotient, presence of edema or liquid and tunnel widening. All points assigned to each parameter formed a composite score ranging from 0-10. Tunnel and graft positioning were evaluated. RESULTS At 18-month 20 MRIs (10 each group) were available, demographics were not significantly different between groups. The non-detached group showed significantly less liquid within the graft at 4-months (p = 0.008) and 18-months (p = 0.028), the tunnel was significantly smaller (p < 0.05) and less enlarged at both follow-ups (p < 0.05), signal noise quotient of the intra-tunnel graft was lower at 18-months (p < 0.05). The total score of the non-detached group saw a significant improvement at 4-months (p = 0.006) that remained stable at 18-months (n.s.). CONCLUSIONS Hamstring grafts, which tibial insertions were preserved, showed better MRI features at 4-and 18-months follow-up, especially in terms of liquid effusion, tunnel enlargement and signal noise quotient. LEVEL OF EVIDENCE IV.
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21
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Zhang Y, Liu S, Chen Q, Hu Y, Sun Y, Chen J. Maturity Progression of the Entire Anterior Cruciate Ligament Graft of Insertion-Preserved Hamstring Tendons by 5 Years: A Prospective Randomized Controlled Study Based on Magnetic Resonance Imaging Evaluation. Am J Sports Med 2020; 48:2970-2977. [PMID: 32909826 DOI: 10.1177/0363546520951507] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND It has been reported that insertion-preserved hamstring tendon autografts (IP-HT) have better maturity than free hamstring tendon autografts (FHT) at 2 years after anterior cruciate ligament reconstruction (ACLR); however, whether insertion preservation improves the maturity of the entire autograft and clinical outcomes at 5 years after ACLR is still unclear. PURPOSE To investigate the clinical outcomes and maturity of different segments using insertion-preserved and free hamstring tendon autografts up to 5 years after ACLR. STUDY DESIGN Randomized controlled trial; Level of evidence, 2. METHODS 45 patients who underwent isolated ACLR with hamstring tendon autografts were enrolled and randomized into 2 groups. The study group had ACLR with IP-HT, whereas the control group had ACLR with FHT. The International Knee Documentation Committee and Tegner scores, Lysholm activity score, and KT-1000 arthrometer measurements were evaluated preoperatively and at 6, 12, 24, and 60 months postoperatively. Three-dimensional-reconstruction MRI examinations were performed at 6, 12, 24, and 60 months to evaluate the signal/noise quotient (SNQ) values of femoral tunnel graft, intra-articular graft, and tibial tunnel graft. RESULTS At 60 months, the SNQ values of the intra-articular and tunnel sections for the grafts in both groups showed no difference; the clinical outcomes were improved compared with before surgery (P < .001) and were similar in both groups. In the early stage, all graft segments in the IP-HT group had lower SNQ values than those of the FHT group. At 6 months, the entire graft in the FHT group and the femoral tunnel section in the IP-HT group had the maximum SNQ values, whereas the femoral tunnel graft had the highest SNQ value compared with intra-articular and tibial tunnel graft in each group. SNQ values of the intra-articular and tibial tunnel graft in the IP-HT group had no significant change within 60 months. CONCLUSION All patients had similar clinical outcomes and graft maturity at 60 months postoperatively. The SNQ values and progressions varied at different graft sites and were highest for the femoral tunnel graft. All significantly changing SNQ values reached the maximum value at 6 months. Compared with FHT autograft, the graft maturity of IP-HT autograft recovered earlier and appeared more stable within the 60-month follow-up; however, no significant association was found between graft maturity and clinical scores.
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Affiliation(s)
- Yuhan Zhang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Shaohua Liu
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Qingyan Chen
- Department of Biology, Boston University, Boston, Massachusetts, USA
| | - Yiwen Hu
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yaying Sun
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiwu Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
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22
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Li Y, Zhu T, Wang L, Jiang J, Xie G, Huangfu X, Dong S, Zhao J. Tissue-Engineered Decellularized Allografts for Anterior Cruciate Ligament Reconstruction. ACS Biomater Sci Eng 2020; 6:5700-5710. [PMID: 33320573 DOI: 10.1021/acsbiomaterials.0c00269] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Anterior cruciate ligament (ACL) reconstruction with allografts is limited by high immunogenicity, poor cellularization, and delayed tendon-bone healing. Decellularized tendons (DAs) have been used as bioscaffolds to reconstruct ligaments with variable success. In the study, four kinds of decellularized allogeneic hamstring tendons were prepared and their microstructure and cytocompatibility were examined in vitro. The results showed that decellularized allografts neutralized by 5% calcium bicarbonate had typical reticular and porous microstructures with optical cytocompatibility. Tissue-engineering decellularized allografts (TEDAs) were prepared with the selected decellularized allografts and tendon stem/progenitor cells and used for ACL reconstruction in a rabbit model. Histological staining showed that the TEDAs promoted cellular infiltration and new vessel formation significantly and improved tendon-bone healing moderately compared to decellularized allografts. Better macroscopic scores and biomechanical results were observed in TEDA groups, but there were no significant differences between DA and TEDA groups at months 1, 2, and 3 postoperatively. Immunohistochemical data showed that the tissue-engineering decellularized allografts enhanced the expression of collagen I at each timepoint and collagen III at months 1 and 2. ELISA analysis showed that the tissue-engineering decellularized allografts reduced the secretion of IgE and IL-1β within 1 month and promoted the secretion of IL-2, IL-4, IL-10, and IL-17 after 1 month. The results showed that tissue-engineering decellularized allografts strengthened intra-articular graft remodeling significantly and provided moderate improvements in tendon-bone healing by creating more suitable immune responses than decellularized allografts. The study revealed that tissue-engineering decellularized allografts as a promising option for ACL reconstruction could achieve more favorable outcomes.
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Affiliation(s)
- Yamin Li
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Tonghe Zhu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Liren Wang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Jia Jiang
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Guoming Xie
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Xiaoqiao Huangfu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Shikui Dong
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Jinzhong Zhao
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
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