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Khan MI, Ismail I, Shetty S, Jebbar JA, Faiaz A, Mohammed S, Shetty AV, Ahammed I, Shahid M. Functional Outcomes of Bone-Patellar Tendon-Bone Versus Quadrupled Semitendinosus and Gracilis Autografts for Anterior Cruciate Ligament Reconstruction. Cureus 2024; 16:e66945. [PMID: 39280532 PMCID: PMC11401604 DOI: 10.7759/cureus.66945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2024] [Indexed: 09/18/2024] Open
Abstract
Introduction Anterior cruciate ligament reconstruction (ACLR) with autografts has been available for decades; however, the choice of graft is still debated. Here, we compared the functional outcomes of the two most widely used autografts, bone-patella tendon-bone (BPTB) and quadruple-stranded semitendinosus/gracilis (ST/G) autografts, at six months following ACLR. Materials and methods This prospective study was performed in the Department of Orthopedics of Yenepoya Medical College and Hospital located in Mangalore, Karnataka, India, a tertiary care institute over a period of 18 months (November 2018 to April 2020). The study included 38 adult patients who underwent ACLR and were randomly divided into two groups: BPTB autograft (n=19) or ST/G autograft (N=19). The patients were followed up at one-, three-, and six months. Postoperatively, surgical morbidity, knee stability functional outcome on Lysholm score, and knee range of motion (ROM) were assessed. Results The groups were homogenous and comparable regarding age, sex, side of ACL affected, duration of tear to treatment, and muscle wasting (all p-values > 0.05). At six months, the majority of the patients had a tibial translation of 0-2 mm on the Lachman test and anterior drawer test, and the groups did not differ significantly (both p-values > 0.05). Additionally, at six months, both groups demonstrated a significant increase in mean Lysholm score and mean ROM (both p-values < 0.001). However, the groups did not differ in mean Lysholm score and mean ROM at baseline and any of the follow-up visits (all p-values > 0.05). Conclusion At six months, ACLR with BPTB and ST/G autografts produced significant and comparable knee stability, functional outcome, and ROM.
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Affiliation(s)
| | - Inas Ismail
- Orthopedics, Yenepoya Medical College and Hospital, Mangalore, IND
| | - Savith Shetty
- Orthopedics, Yenepoya Medical College and Hospital, Mangalore, IND
| | - Jithin A Jebbar
- Orthopedics, Yenepoya Medical College and Hospital, Mangalore, IND
| | - Afra Faiaz
- Anesthesiology, Kanachur Institute of Medical Sciences, Mangalore, IND
| | - Shameez Mohammed
- Orthopedics, Yenepoya Medical College and Hospital, Mangalore, IND
| | - Abhishek V Shetty
- Orthopedic Surgery, Yenepoya Medical College and Hospital, Mangalore, IND
| | - Imthiaz Ahammed
- Orthopedics, Yenepoya Medical College and Hospital, Mangalore, IND
| | - Mohammed Shahid
- Orthopedics, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
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Peebles LA, Akamefula RA, Aman ZS, Verma A, Scillia AJ, Mulcahey MK, Kraeutler MJ. Following Anterior Cruciate Ligament Reconstruction With Bone-Patellar Tendon-Bone Autograft, the Incidence of Anterior Knee Pain Ranges From 5.4% to 48.4% and the Incidence of Kneeling Pain Ranges From 4.0% to 75.6%: A Systematic Review of Level I Studies. Arthrosc Sports Med Rehabil 2024; 6:100902. [PMID: 38562662 PMCID: PMC10982565 DOI: 10.1016/j.asmr.2024.100902] [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: 06/30/2023] [Accepted: 01/13/2024] [Indexed: 04/04/2024] Open
Abstract
Purpose To (1) perform a systematic review of level I randomized controlled trials (RCTs) detailing the incidence of anterior knee pain and kneeling pain following anterior cruciate ligament reconstruction (ACLR) with bone-patellar tendon-bone (BPTB) autograft and (2) investigate the effect of bone grafting the patellar harvest site on anterior knee and kneeling pain. Methods A systematic review of level I studies from 1980 to 2023 was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The primary outcome evaluated was the presence of donor site morbidity in the form of anterior knee pain or kneeling pain. A secondary subanalysis was performed to assess for differences in the incidence of postoperative pain between patient groups undergoing ACLR with BPTB receiving harvest site bone grafting and those in whom the defect was left untreated. Results Following full-text review, 15 studies reporting on a total of 696 patients met final inclusion criteria. Patients were followed for an average of 4.78 years (range, 2.0-15.3), and the mean age ranged from 21.7 to 38 years old. The incidence of anterior knee pain, calculated from 354 patients across 10 studies, ranged from 5.4% to 48.4%. The incidence of postoperative pain with kneeling was determined to range from 4.0% to 75.6% in 490 patients from 9 studies. Patients treated with bone grafting of the BPTB harvest site had no significant difference in incidence of any knee pain compared with those who were not grafted, with incidences of 43.3% and 40.2%, respectively. Conclusions Based on the current level I RCT data, the incidences of anterior knee pain and kneeling pain following ACLR with BPTB autograft range from 5.4% to 48.4% and 4.0% to 75.6%, respectively. Level of Evidence Level I, systematic review of RCTs.
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Affiliation(s)
- Liam A. Peebles
- Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | | | - Zachary S. Aman
- Sidney Kimmel Medical College, Philadelphia, Pennsylvania, U.S.A
| | - Arjun Verma
- Tulane University School of Medicine, New Orleans, Louisiana, U.S.A
| | - Anthony J. Scillia
- Department of Orthopaedic Surgery, St. Joseph's University Medical Center, Paterson, New Jersey, U.S.A
| | - Mary K. Mulcahey
- Department of Orthopaedic Surgery and Rehabilitation, Loyola University Medical Center, Maywood, Illinois, U.S.A
| | - Matthew J. Kraeutler
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, U.S.A
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Fares A, Hardy A, Bohu Y, Meyer A, Karam K, Lefevre N. The impact of bone graft type used to fill bone defects in patients undergoing ACL reconstruction with bone-patellar tendon-bone (BPTB) autograft on kneeling, anterior knee pain and knee functional outcomes. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2024; 34:181-190. [PMID: 37392257 PMCID: PMC10771375 DOI: 10.1007/s00590-023-03624-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/17/2023] [Indexed: 07/03/2023]
Abstract
PURPOSE Multiple different materials are used for filling bone defects following bone-patellar tendon-bone (BPTB) graft ACL reconstruction surgery. The theoretical objective being to minimize kneeling pain, improve clinical outcomes and reduce anterior knee pain following surgery. The impact of these materials is assessed in this study. METHODS A prospective monocentric cohort study was conducted from January 2018 to March 2020. There were 128 skeletally mature athletic patients who underwent ACL reconstruction using the same arthroscopic-assisted BPTB technique, with a minimum follow-up of two years identified in our database. After obtaining approval from the local ethics committee, 102 patients were included in the study. Patients were divided into three groups based on type of bone substitute. The Bioactive glass 45S5 ceramic Glassbone™ (GB), collagen and hydroxyapatite bone void filler in sponge form Collapat® II (CP), and treated human bone graft Osteopure®(OP) bone substitutes were used according to availability. Clinical evaluation of patients at follow-up was performed using the WebSurvey software. A questionnaire completed in the 2nd post-operative year included three items: The ability to kneel, the presence of donor site pain, and the palpation of a defect. Another assessment tool included the IKDC subjective score and Lysholm score. These two tools were completed by patients preoperatively, and postoperatively on three occasions (6 months, 1 year, and 2 years). RESULTS A total of 102 patients were included in this study. In terms of Kneeling pain, the percentage of GB and CP patients' who kneel with ease were much higher than that of OP patients (77.78%, 76.5% vs 65.6%, respectively). All three groups experienced an important increase in IKDC and Lysholm scores. There was no difference in anterior knee pain between the groups. CONCLUSION The use of Glassbone® and Collapat II® bone substitutes reduced the incidence of kneeling pain compared to Osteopure®. There was no influence of the bone substitute type on the functional outcome of the knee or on the anterior knee pain at two years of follow.
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Affiliation(s)
- Ali Fares
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, Paris, France.
| | - Alexandre Hardy
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, Paris, France
| | - Yoann Bohu
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, Paris, France
| | - Alain Meyer
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, Paris, France
| | - Karam Karam
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, Paris, France
| | - Nicolas Lefevre
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, Paris, France
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Zhao D, Pan JK, Lin FZ, Luo MH, Liang GH, Zeng LF, Huang HT, Han YH, Xu NJ, Yang WY, Liu J. Risk Factors for Revision or Rerupture After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis. Am J Sports Med 2023; 51:3053-3075. [PMID: 36189967 DOI: 10.1177/03635465221119787] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The rerupture or need for revision after anterior cruciate ligament reconstruction (ACLR) is a serious complication. Preventive strategies that target the early identification of risk factors are important to reduce the incidence of additional surgery. PURPOSE To perform a systematic review and meta-analysis to investigate risk factors for revision or rerupture after ACLR. STUDY DESIGN Systematic review and meta-analysis; Level of evidence, 4. METHODS Literature searches were performed in PubMed, Embase, and Web of Science from database inception to November 2021 and updated in January 2022. Quantitative, original studies reporting potential adjusted risk factors were included. Odds ratios (ORs) were calculated for potential risk factors. RESULTS A total of 71 studies across 13 countries with a total sample size of 629,120 met the inclusion criteria. Fifteen factors were associated with an increase in the risk of revision or rerupture after ACLR: male sex (OR, 1.27; 95% CI, 1.14-1.41), younger age (OR, 1.07; 95% CI, 1.05-1.08), lower body mass index (BMI) (OR, 1.03; 95% CI, 1.00-1.06), family history (OR, 2.47; 95% CI, 1.50-4.08), White race (OR, 1.32; 95% CI, 1.08-1.60), higher posterolateral tibial slope (OR, 1.15; 95% CI, 1.05-1.26), preoperative high-grade anterior knee laxity (OR, 2.30; 95% CI, 1.46-3.64), higher baseline Marx activity level (OR, 1.07; 95% CI, 1.02-1.13), return to a high activity level/sport (OR, 2.03; 95% CI, 1.15-3.57), an ACLR within less than a year after injury (OR, 2.05; 95% CI, 1.81-2.32), a concomitant medial collateral ligament (MCL) injury (OR, 1.62; 95% CI, 1.31-2.00), an anteromedial portal or transportal technique (OR, 1.36; 95% CI, 1.22-1.51), hamstring tendon (HT) autografts (vs bone-patellar tendon-bone [BPTB] autografts) (OR, 1.60; 95% CI, 1.40-1.82), allografts (OR, 2.63; 95% CI, 1.65-4.19), and smaller graft diameter (OR, 1.21; 95% CI, 1.05-1.38). The other factors failed to show an association with an increased risk of revision or rerupture after ACLR. CONCLUSION Male sex, younger age, lower BMI, family history, White race, higher posterolateral tibial slope, preoperative high-grade anterior knee laxity, higher baseline Marx activity level, return to a high activity level/sport, an ACLR within less than a year from injury, a concomitant MCL injury, an anteromedial portal or transportal technique, HT autografts (vs BPTB autografts), allografts, and smaller graft diameter may increase the risk of revision or rerupture after ACLR. Raising awareness and implementing effective preventions/interventions for risk factors are priorities for clinical practitioners to reduce the incidence of revision or rerupture after ACLR.
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Affiliation(s)
- Di Zhao
- The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Jian-Ke Pan
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fang-Zheng Lin
- The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ming-Hui Luo
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gui-Hong Liang
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ling-Feng Zeng
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - He-Tao Huang
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yan-Hong Han
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Nan-Jun Xu
- The Second Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei-Yi Yang
- Bone and Joint Research Team of Degeneration and Injury, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jun Liu
- Department of Sports Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Second Traditional Chinese Medicine Hospital (Guangdong Province Engineering Technology Research Institute of Traditional Chinese Medicine), Guangzhou, China
- The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
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Migliorini F, Torsiello E, Trivellas A, Eschweiler J, Hildebrand F, Maffulli N. Bone-patellar tendon-bone versus two- and four-strand hamstring tendon autografts for ACL reconstruction in young adults: a Bayesian network meta-analysis. Sci Rep 2023; 13:6883. [PMID: 37106008 PMCID: PMC10140035 DOI: 10.1038/s41598-023-33899-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 04/20/2023] [Indexed: 04/29/2023] Open
Abstract
Bone-patellar tendon-bone (BPTB), two- and four-strand hamstring tendon (4SHT and 2SHT, respectively) are the most common autografts used for anterior cruciate ligament (ACL) reconstruction. The present study compared BPTB, 2SHT, and 4SHT for ACL reconstruction in terms of joint laxity, patient reported outcome measures (PROMs), rate of failure and anterior knee pain (AKP). The time to return to sport and the peak torque between the autografts were also compared. Finally, prognostic factors leading to worse outcomes were also investigated. It was hypothesized that all grafts yield similar proprieties in terms of joint laxity, patient reported outcome measures (PROMs) and rate of failure, but that the BPTB autograft causes a greater rate of anterior knee pain (AKP). The literature search was conducted. All clinical trials comparing BTPB and/or 2SHT, and/or 4SHT were accessed. Grafts other than BTPB and/or 4SHT and/or 2SHT were not considered. Articles reporting outcomes of allografts or synthetic grafts were not eligible, nor were those concerning revision settings. Articles reporting ACL reconstruction in patients with multi-ligament damage were also not eligible. Data from 95,575 procedures were retrieved. The median length of follow-up was 36 months. The median age of the patients was 27.5 years. With regard to joint laxity, similarity was found in terms of Lachman and Pivot shift tests between all three autografts. The BPTB demonstrated the greatest stability in terms of instrumental laxity. BPTB demonstrated the greatest PROMs. BPTB demonstrated the greatest rate of AKP, while AKP in 2SHT and 4SHT was similar. Concerning failure, statistically significant inconsistency was found (P = 0.008). The 4SHT demonstrated the quickest return to sport, followed by BPTB, and 2SHT. There was evidence of a negative association between the time span between injury to surgery, Lysholm score (P = 0.04), and Tegner scale (P = 0.04). Furthermore, there was evidence of a weak positive association between the time span between injury to surgery and return to sport (P = 0.01). BPTB may result in lower joint laxity, greater PROMs, and greater peak flexion torque compared to 2SHT and 4SHT autografts. On the other hand, BPTB reported the lowest peak extension torque and the greatest rate of AKP. Finally, a longer time span between injury and surgery negatively influences outcome.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.
| | - Ernesto Torsiello
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081, Baronissi, SA, Italy
| | - Andromahi Trivellas
- Department of Orthopaedic and Trauma Surgery, Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, 90095, USA
| | - Jörg Eschweiler
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Frank Hildebrand
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081, Baronissi, SA, Italy
- School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Thornburrow Drive, Stoke on Trent, England
- Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, 275 Bancroft Road, London, E1 4DG, England
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Ruelos VCB, Masood R, Puzzitiello RN, Moverman MA, Pagani NR, Menendez ME, Salzler MJ. The reverse fragility index: RCTs reporting non-significant differences in failure rates between hamstring and bone-patellar tendon-bone autografts have fragile results. Knee Surg Sports Traumatol Arthrosc 2023:10.1007/s00167-023-07420-0. [PMID: 37093236 DOI: 10.1007/s00167-023-07420-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 04/14/2023] [Indexed: 04/25/2023]
Abstract
PURPOSE The reverse fragility index (RFI) is a novel metric to appraise the results of studies reporting statistically non-significant results. The purpose of this study was to determine the statistical robustness of randomized controlled trials (RCTs) reporting non-significant differences in anterior cruciate ligament reconstruction (ACLR) graft failure rates, defined as re-rupture/revision ACLR rate, between hamstring tendon (HT) and bone-patellar tendon-bone (BTB) autografts by calculating RFIs. METHODS A systematic review was performed to identify RCTs that compared HT to BTB grafts for ACLR through January 2022. Studies reporting non-significant differences in graft re-rupture and revision ACLR rate (n.s.) were included. The RFI, defined as the fewest number of event reversals needed to change the non-significant graft re-rupture/revision outcome to statistically significant (P < 0.05), was recorded for each study. In addition, the number of studies in which the loss to follow-up exceeded the RFI was recorded. RESULTS Among the 16 included RCTs, the median (interquartile range [IQR]) sample size was 71 (64-114), and the median (IQR) total number of graft re-rupture/revision ACLR events was 4 (4-6). The median (IQR) graft re-rupture/revision ACLR rate was 4.3% (3.0-6.4) overall, 4.1% (2.6-6.7) in the BTB group, and 5.4% (3.0-6.3) in the HT group. The median (IQR) RFI was 3 (3-4), signifying that a reversal of the outcome in 3 patients in one arm was needed to flip the studies' result from non-significant to statistically significant (P < 0.05). The median (IQR) number of participants lost to follow-up was 11 (3-13), and 13 (81.3%) of the included studies had a loss to follow-up greater than the studies' RFI. CONCLUSION The results of RCTs reporting statistically non-significant re-rupture/revision ACLR rates between HT and BTB autografts would become significant if the outcome were reversed in a small number of patients-a number that was less than the loss to follow-up in the majority of studies. Thus, the neutrality of these studies is fragile, and a true statistically significant difference in re-rupture/revision rates may have been undetected. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
| | - Raisa Masood
- Department of Orthopaedic Surgery, Tufts Medical Center, 270 Tremont St Biewend Building, Boston, MA, 02111, USA
| | - Richard N Puzzitiello
- Department of Orthopaedic Surgery, Tufts Medical Center, 270 Tremont St Biewend Building, Boston, MA, 02111, USA
| | - Michael A Moverman
- Department of Orthopaedic Surgery, Tufts Medical Center, 270 Tremont St Biewend Building, Boston, MA, 02111, USA
| | - Nicholas R Pagani
- Department of Orthopaedic Surgery, Tufts Medical Center, 270 Tremont St Biewend Building, Boston, MA, 02111, USA
| | - Mariano E Menendez
- Midwest Orthopaedics at Rush, Rush University Medical Center, Chicago, IL, USA
| | - Matthew J Salzler
- Department of Orthopaedic Surgery, Tufts Medical Center, 270 Tremont St Biewend Building, Boston, MA, 02111, USA.
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7
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Kunze KN, Moran J, Polce EM, Pareek A, Strickland SM, Williams RJ. Lower donor site morbidity with hamstring and quadriceps tendon autograft compared with bone-patellar tendon-bone autograft after anterior cruciate ligament reconstruction: a systematic review and network meta-analysis of randomized controlled trials. Knee Surg Sports Traumatol Arthrosc 2023:10.1007/s00167-023-07402-2. [PMID: 37000243 DOI: 10.1007/s00167-023-07402-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/20/2023] [Indexed: 04/01/2023]
Abstract
PURPOSE To perform a meta-analysis of RCTs evaluating donor site morbidity after bone-patellar tendon-bone (BTB), hamstring tendon (HT) and quadriceps tendon (QT) autograft harvest for anterior cruciate ligament reconstruction (ACLR). METHODS PubMed, OVID/Medline and Cochrane databases were queried in July 2022. All level one articles reporting the frequency of specific donor-site morbidity were included. Frequentist model network meta-analyses with P-scores were conducted to compare the prevalence of donor-site morbidity, complications, all-cause reoperations and revision ACLR among the three treatment groups. RESULTS Twenty-one RCTs comprising the outcomes of 1726 patients were included. The overall pooled rate of donor-site morbidity (defined as anterior knee pain, difficulty/impossibility kneeling, or combination) was 47.3% (range, 3.8-86.7%). A 69% (95% confidence interval [95% CI]: 0.18-0.56) and 88% (95% CI: 0.04-0.33) lower odds of incurring donor-site morbidity was observed with HT and QT autografts, respectively (p < 0.0001, both), when compared to BTB autograft. QT autograft was associated with a non-statistically significant reduction in donor-site morbidity compared with HT autograft (OR: 0.37, 95% CI: 0.14-1.03, n.s.). Treatment rankings (ordered from best-to-worst autograft choice with respect to donor-site morbidity) were as follows: (1) QT (P-score = 0.99), (2) HT (P-score = 0.51) and (3) BTB (P-score = 0.00). No statistically significant associations were observed between autograft and complications (n.s.), reoperations (n.s.) or revision ACLR (n.s.). CONCLUSION ACLR using HT and QT autograft tissue was associated with a significant reduction in donor-site morbidity compared to BTB autograft. Autograft selection was not associated with complications, all-cause reoperations, or revision ACLR. Based on the current data, there is sufficient evidence to recommend that autograft selection should be personalized through considering differential rates of donor-site morbidity in the context of patient expectations and activity level without concern for a clinically important change in the rate of adverse events. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Kyle N Kunze
- Department of Orthopaedic Surgery, Hospital for Special Surgery, East 70th Street, New York, NY, 53510021, USA.
- Sports Medicine and Shoulder Institute, Hospital for Special Surgery, New York, NY, USA.
| | - Jay Moran
- Yale School of Medicine, New Haven, CT, USA
| | - Evan M Polce
- School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Ayoosh Pareek
- Department of Orthopaedic Surgery, Hospital for Special Surgery, East 70th Street, New York, NY, 53510021, USA
| | - Sabrina M Strickland
- Department of Orthopaedic Surgery, Hospital for Special Surgery, East 70th Street, New York, NY, 53510021, USA
- Sports Medicine and Shoulder Institute, Hospital for Special Surgery, New York, NY, USA
| | - Riley J Williams
- Department of Orthopaedic Surgery, Hospital for Special Surgery, East 70th Street, New York, NY, 53510021, USA
- Sports Medicine and Shoulder Institute, Hospital for Special Surgery, New York, NY, USA
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8
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Tavares MLA, Lima PODP, Albano TR, Rodrigues CAS, Almeida GPL. The Relationship of Knee-related Quality of Life With Function, Psychological Factors, Strength, Performance, and Postural Stability After ACL Reconstruction: A Cross-Sectional Study. Sports Health 2023; 15:192-198. [PMID: 36154529 PMCID: PMC9950995 DOI: 10.1177/19417381221123517] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Patients after anterior cruciate ligament reconstruction (ACLR) have decreased health-related quality of life (QoL) compared with healthy control participants. Few studies have verified the predictors of QoL using Quality of Life Outcome Measure Questionnaire for Chronic Anterior Cruciate Ligament Deficiency (ACL-QoL), and no study has verified the relationship of psychological factors and knee function with ACL-QoL in patients after ACLR. HYPOTHESIS Knee functional status, muscle strength, performance in hop tests, postural stability, and psychological factors would be the predictors of QoL after ACLR. STUDY DESIGN Cross-sectional study. LEVEL OF EVIDENCE Level 4. METHODS A total of 131 participants who had undergone ACLR at least 6 months previously were evaluated. QoL was assessed using ACL-QoL; knee functional status, using International Knee Documentation Committee Subjective Knee (IKDC) and global rating scale (GRS); psychological readiness, using Anterior Cruciate Ligament Return to Sport after Injury Scale (ACL-RSI); kinesiophobia, using Tampa Scale for Kinesiophobia (TSK-17); knee strength, using isokinetic dynamometer; performance, using single-leg hop tests; and postural stability, using Biodex Balance System. Pearson's linear correlation and stepwise hierarchical multiple linear regression analyses were performed to verify the predictors of QoL. RESULTS ACL-QoL showed a moderate correlation with IKDC (r = 0.69), GRS (r = 0.55), ACL-RSI (r = 0.50), and TSK-17 (r = -0.49). ACL-QoL presented none to low correlations with the variables of muscle strength, postural stability, and performance in hop tests. The variables related to the knee functional status and psychological factors (IKDC, GRS, ACL-RSI, and TSK-17) were found to be the predictors of QoL (R2 = 0.56; P = 0.01). CONCLUSION Knee functional status, psychological readiness, and kinesiophobia were the predictors of knee-related QoL in patients after ACLR. CLINICAL RELEVANCE These results can assist clinicians in the therapeutic monitoring of the factors that may interfere with QoL in patients after ACLR.
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Affiliation(s)
- Maria Larissa Azevedo Tavares
- Knee and Sports Research Group,
Physical Therapy Department, School of Medicine, Federal University of Ceará,
Fortaleza, CE, Brazil
- Master Program in Physical Therapy and
Functioning, Physical Therapy Department, School of Medicine, Federal University of
Ceará, Fortaleza, CE, Brazil
| | - Pedro Olavo de Paula Lima
- Knee and Sports Research Group,
Physical Therapy Department, School of Medicine, Federal University of Ceará,
Fortaleza, CE, Brazil
- Master Program in Physical Therapy and
Functioning, Physical Therapy Department, School of Medicine, Federal University of
Ceará, Fortaleza, CE, Brazil
| | - Thamyla Rocha Albano
- Knee and Sports Research Group,
Physical Therapy Department, School of Medicine, Federal University of Ceará,
Fortaleza, CE, Brazil
- Master Program in Physical Therapy and
Functioning, Physical Therapy Department, School of Medicine, Federal University of
Ceará, Fortaleza, CE, Brazil
| | - Carlos Augusto Silva Rodrigues
- Knee and Sports Research Group,
Physical Therapy Department, School of Medicine, Federal University of Ceará,
Fortaleza, CE, Brazil
- Master Program in Physical Therapy and
Functioning, Physical Therapy Department, School of Medicine, Federal University of
Ceará, Fortaleza, CE, Brazil
| | - Gabriel Peixoto Leão Almeida
- Knee and Sports Research Group,
Physical Therapy Department, School of Medicine, Federal University of Ceará,
Fortaleza, CE, Brazil
- Master Program in Physical Therapy and
Functioning, Physical Therapy Department, School of Medicine, Federal University of
Ceará, Fortaleza, CE, Brazil
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9
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Shen X, Liu T, Xu S, Chen B, Tang X, Xiao J, Qin Y. Optimal Timing of Anterior Cruciate Ligament Reconstruction in Patients With Anterior Cruciate Ligament Tear: A Systematic Review and Meta-analysis. JAMA Netw Open 2022; 5:e2242742. [PMID: 36394870 PMCID: PMC9672975 DOI: 10.1001/jamanetworkopen.2022.42742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
IMPORTANCE The timing of surgery has been regarded as a key factor in anterior cruciate ligament reconstruction (ACLR), and early vs delayed ACLR remains a controversial topic. OBJECTIVE To synthesize up-to-date published data from randomized clinical trials (RCTs) comparing early vs elective delayed ACLR for patients with ACL deficiency, in terms of clinical outcomes and complications. DATA SOURCES The PubMed, Cochrane Library, and Web of Science databases were systematically searched until September 9, 2022. STUDY SELECTION All published RCTs comparing clinical and functional outcomes and complications associated with early ACLR vs elective delayed ACLR. DATA EXTRACTION AND SYNTHESIS Two reviewers independently extracted relevant data and assessed the methodological quality following the PRISMA guidelines. MAIN OUTCOMES AND MEASURES Due to the clinical heterogeneity, the random-effects model was preferred. The primary outcomes were functional outcomes and complications. The Mantel-Haenszel test was used to evaluate dichotomous variables and the inverse variance method was used to assess continuous variables. RESULTS This meta-analysis included 972 participants in 11 RCTs stratified by follow-up duration. The following factors did not differ between early and delayed ACLR: operative time (mean difference, 4.97; 95% CI, -0.68 to 10.61; P = .08), retear (OR, 1.52; 95% CI, 0.52-4.43; P = .44), and infection (OR, 3.80; 95% CI, 0.77-18.79; P = .10). There were also no differences between groups in range of motion, knee laxity, International Knee Documentation Committee (IKDC rating scale), and Tegner score. IKDC score (mean difference, 2.77; 95% CI, 1.89-3.66; P < .001), and Lysholm score at 2-year follow-up (mean difference, 2.61; 95% CI, 0.74-4.48; P = .006) significantly differed between early and delayed ACLR. In addition, the timing of surgery was redefined in the included RCTs and subgroup analyses were performed, which validated the robustness of the principal results. CONCLUSION AND RELEVANCE This systematic review and meta-analysis found that early ACLR was not superior to delayed ACLR in terms of most factors analyzed, except for IKDC and Lysholm scores. This information should be available to patients with ACL deficiency and clinicians as part of the shared decision-making process of treatment selection.
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Affiliation(s)
- Xianyue Shen
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Tong Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - Shenghao Xu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - Bo Chen
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Xiongfeng Tang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Jianlin Xiao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yanguo Qin
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin Province, China
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10
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Bergeron JJ, Sercia QP, Drager J, Pelet S, Belzile EL. Return to Baseline Physical Activity After Bone-Patellar Tendon-Bone Versus Hamstring Tendon Autografts for Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Am J Sports Med 2022; 50:2292-2303. [PMID: 34310176 PMCID: PMC9227950 DOI: 10.1177/03635465211017522] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/25/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Bone-patellar tendon-bone (BPTB) and hamstring tendon (HT) autografts are the most utilized grafts for primary anterior cruciate ligament (ACL) reconstruction. The ability of a patient to return to a preinjury level of physical activity is a key consideration in choice of graft; the influence of graft choice on this metric lacks consensus in the literature. PURPOSE To assess the effects of autograft choice (BPTB vs HT) for primary ACL reconstruction on return to baseline level of physical activity and/or sports participation. STUDY DESIGN Meta-analysis; Level of evidence, 1. METHODS A systematic review of randomized controlled trials comparing the use of BPTB and HT autografts for primary ACL reconstruction was conducted. The electronic databases EMBASE, MEDLINE, Cochrane CENTRAL, and Web of Science were comprehensively queried through September 23, 2019. The primary outcome was return to preinjury level of activity/sports. Secondary outcomes included knee stability testing (Lachman, KT-1000 arthrometer, and pivot-shift tests) and clinical subjective knee scores (Tegner, Cincinnati, International Knee Documentation Committee, and Lysholm). Two independent reviewers were involved in the screening of titles and abstracts, data extraction, and the assessment of risk of bias. Meta-analyses were performed respecting the Cochrane Handbook for Systematic Reviews of Intervention. RESULTS A total of 29 studies (N = 3099 patients) were eligible for this review, of which 13 (n = 1029 patients) reported on return to baseline level of sports as an endpoint. The risk ratio (RR) of using BPTB vs HT on return to baseline sport level was 1.03 (0.91-1.17; P = .63). Absence of a positive pivot-shift test was the only secondary outcome, with a statistically significant RR of 0.66 (95% CI, 0.50-0.86) in favor of BPTB autografts (P = .002). CONCLUSION In reviewing the current literature, no recommendation can be made on the optimal graft choice when using a return to baseline level of physical activity and/or sports participation as a primary metric.
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Affiliation(s)
- Jeremy J. Bergeron
- Centre Hospitalier Affilié Universitaire de Québec – Pavillon Enfant-Jésus, Université Laval, Québec, Canada
| | - Quentin P. Sercia
- Centre Hospitalier Affilié Universitaire de Québec – Pavillon Enfant-Jésus, Université Laval, Québec, Canada
| | - Justin Drager
- Department of Orthopedics, Tufts Medical Center, Boston, Massachusetts, USA
| | - Stéphane Pelet
- Centre Hospitalier Affilié Universitaire de Québec – Pavillon Enfant-Jésus, Université Laval, Québec, Canada
| | - Etienne L. Belzile
- Centre Hospitalier Affilié Universitaire de Québec – Pavillon Enfant-Jésus, Université Laval, Québec, Canada
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11
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Larose G, Leiter J, Peeler J, McRae S, Stranges G, Rollins M, Davidson M, MacDonald P. Quality of life during the wait for ruptured anterior cruciate ligament reconstruction: a randomized controlled trial. Can J Surg 2022; 65:E269-E274. [PMID: 35414527 PMCID: PMC9007442 DOI: 10.1503/cjs.007820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2021] [Indexed: 11/18/2022] Open
Abstract
Background: There is a lack of prospective evidence to guide surgeons when making recommendations about the appropriate timing of surgical intervention for ruptured anterior cruciate ligament (ACL), activity modifications to reduce the risk of secondary injury before surgery, and the short- and long-term risks associated with delayed ACL reconstruction. This study aimed to determine whether longer wait times are associated with a prolonged decrease in quality of life and an increased incidence of secondary joint injury after ACL rupture. Methods: We recruited 53 patients who presented between 2013 and 2017 at a single sports medicine minor injury clinic with a suspected acute ACL rupture, based on clinical examination; ACL rupture was confirmed on magnetic resonance imaging. Patients were randomly allocated to undergo early reconstruction (< 12 wk after injury) or reconstruction after a regular wait time (≥ 12 wk). We compared scores on the ACL quality of life measure (ACL-QOL) and the incidence of secondary knee injury at baseline and at surgery between the 2 groups. Participants also completed the Tegner scale (level of activity) at the time of consent and within 7 days before surgery. Results: Twenty-eight patients were randomly assigned to the early surgery group and 25 patients to the regular wait time group. There was no difference in mean age between the 2 groups. There were no between-group differences in mean ACL-QOL score at the time of injury (28.5 [standard deviation (SD) 12.5] v. 28.5 [SD 12.6]) or at surgery (34.9 [SD 17.5] v. 38.0 [SD 17.5]). The mean wait time was significantly longer in the regular wait time group than in the early surgery group (29.6 wk [SD 13.2 wk] v. 10.6 wk [SD 5.1 wk], p = 0.001). In both groups, Tegner scale scores were significantly lower after than before ACL rupture (p < 0.001) and remained low while patients waited for surgery. There were no between-group differences in the incidence of chondral or meniscal injury at surgery, although the study was not adequately powered to draw any statistical conclusions. Conclusion: Wait time for ACL reconstruction may affect patients’ quality of life, as it remained diminished for a longer period when surgery was delayed. A low activity level during the waiting period was observed in both groups; this low activity level may be one reason why no between-group differences in the incidence of secondary injury were observed. The findings suggest that patients with a limited activity level during the waiting period have a low risk of secondary injuries.
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Affiliation(s)
- Gabriel Larose
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Jeff Leiter
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Jason Peeler
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Sheila McRae
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Gregory Stranges
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Meaghan Rollins
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Mike Davidson
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
| | - Peter MacDonald
- From the Department of Surgery, University of Manitoba, Winnipeg, Man. (Larose, Stranges, MacDonald, Rollins, Leiter, McRae); the Department of Radiology, University of Manitoba, Winnipeg, Man. (Davidson); the Department of Anatomy, University of Manitoba, Winnipeg, Man. (Peeler); the Pan Am Clinic Foundation, Winnipeg, Man. (Leiter, McRae); and the Pan Am Clinic, Winnipeg, Man. (Stranges, Davidson, MacDonald)
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12
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De Petrillo G, Pauyo T, Franklin CC, Chafetz RS, Nault ML, Veilleux LN. Limited evidence for graft selection in pediatric ACL reconstruction: a narrative review. J Exp Orthop 2022; 9:9. [PMID: 35028782 PMCID: PMC8758832 DOI: 10.1186/s40634-022-00448-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/07/2022] [Indexed: 11/10/2022] Open
Abstract
Anterior cruciate ligament reconstruction is the preferred treatment to anterior cruciate ligament injury. With the increase in anterior cruciate ligament injuries in both adults and skeletally immature patients comes the need for individualized anterior cruciate ligament reconstruction graft selection whether it is the type of graft (auto vs. allograft) or the harvesting site (hamstrings, iliotibial band, quadriceps, patella). Several factors need to be considered preoperatively in order to optimize the patients' recovery and restore anterior cruciate ligament strength and function. These include age and bone maturity, preoperative knee flexor/extensor strength, sport participation, patient's needs and anatomical characteristics. This paper aims at bringing evidence supporting the use of a personalized approach in graft selection for faster and more efficient return to sport and propose a theoretical framework to support the approach.
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Affiliation(s)
- Gianni De Petrillo
- Shriners Children- Canada , 1003 Decarie Blvd, QC, H4A 0A9, Montreal, Canada
| | - Thierry Pauyo
- Shriners Children- Canada , 1003 Decarie Blvd, QC, H4A 0A9, Montreal, Canada
- Department of Surgery, McGill University, Montreal, Canada
| | | | | | - Marie-Lyne Nault
- Ste-Justine University Health Center, Montreal, Canada
- Department of Surgery, Université de Montréal, Montreal, Canada
| | - Louis-Nicolas Veilleux
- Shriners Children- Canada , 1003 Decarie Blvd, QC, H4A 0A9, Montreal, Canada.
- Department of Surgery, McGill University, Montreal, Canada.
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13
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Domzalski ME, Pieta F, Przybylak K. The knee function of the soccer players after ACLR is comparable with non-injured controls: A case-control study. J Orthop Surg (Hong Kong) 2021; 29:23094990211036101. [PMID: 34590928 DOI: 10.1177/23094990211036101] [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: 11/17/2022] Open
Abstract
PURPOSE Many studies report a high primary success rate of ACL reconstruction (ACLR), with an increased risk of decline in knee performance correlating with the time passed since surgery. Only one study has compared male soccer players after ACLR to a matched control group of uninjured players in terms of their return to sport and performance. The purpose of this cross-sectional case-control study was to determine the knee performance between soccer players after ACLR and control group matched by age, sex, and professional experience. METHODS All the male professional soccer players aged 18-36 years at the time of injury, who sustained an ACL tear while playing league soccer in Poland between January 2008 and December 2011 were contacted and compared with age and experience-matched healthy control group selected from professional football players. KOOS, IKDC-2000, Lysholm and SF-36 scales were used for comparison. RESULTS The average follow-up was 7.9 years (range 6-9 years). The ACL-injured soccer players scored significantly lower in IKDC and Lysholm scores compared with the reference group but still were classified as normal knee function in both scales. In all five dimensions of the KOOS and subscales of SF-36 no apparent differences were noted. In all scales in the study group, no correlation was observed between the player's age and follow-up time after ACLR. CONCLUSION After ACL reconstruction and successful return to professional sport, knee function is as good as uninjured team members in the midterm follow-up. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Marcin E Domzalski
- Department of Orthopedics and Trauma Medical University of Lodz, Veteran's Memorial Hospital, Lodz, Poland.,SPORTO Clinic, Lodz, Poland
| | - Filip Pieta
- Department of Orthopedics and Trauma Medical University of Lodz, Veteran's Memorial Hospital, Lodz, Poland.,Fizjomed Medical Centre, Krakow, Poland
| | - Katarzyna Przybylak
- SPORTO Clinic, Lodz, Poland.,Interventional Cardiology Clinic, Medical University of Lodz, Lodz, Poland
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14
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Ehlers CB, Curley AJ, Fackler NP, Minhas A, Chang ES. The Statistical Fragility of Hamstring Versus Patellar Tendon Autografts for Anterior Cruciate Ligament Reconstruction: A Systematic Review of Comparative Studies. Am J Sports Med 2021; 49:2827-2833. [PMID: 33211555 DOI: 10.1177/0363546520969973] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Evidence-based medicine utilizes data to inform clinical decision making, despite the ability of a small number of outcome reversals to change statistical significance. P values are common measurements of statistical significance that possess inherent flaws. The inclusion of the fragility index (FI) and fragility quotient (FQ) may provide a clearer conveyance of statistical strength. PURPOSE/HYPOTHESIS The purpose was to examine the statistical stability of studies comparing hamstring tendon and bone-patellar tendon-bone autografts in primary single-bundle anterior cruciate ligament reconstruction with independent tunnel drilling. We hypothesized that the findings of these studies are vulnerable to a small number of outcome event reversals, often fewer than the number of patients lost to follow-up. STUDY DESIGN Systematic review. METHODS Comparative studies and randomized controlled trials (RCTs) published in 10 leading orthopaedic journals between 2000 and 2020 were analyzed. Statistical significance was defined as a P value ≤.05. FI for each outcome was determined by the number of event reversals necessary to alter significance. FQ was calculated by dividing the FI by the respective sample size. RESULTS Of the 1803 studies screened, 643 met initial search criteria, with 18 comparative studies ultimately included for analysis, 8 of which were RCTs. A total of 114 outcomes were examined. Overall, the mean (interquartile range) FI and FQ were 3.77 (2-4) and 0.040 (0.016-0.055), respectively. The FI was less than the number of patients lost to follow-up for 76.3% of outcomes. CONCLUSION Studies examining graft choice for anterior cruciate ligament reconstruction may not be as statistically stable as previously thought. Comparative studies and RCTs are at substantial risk for statistical fragility, with few event reversals required to alter significance. The reversal of <4 outcome events in a treatment group can alter the statistical significance of a given result; this is commonly fewer than the number of patients lost to follow-up. Future comparative study analyses might consider including FI and FQ with P values in their statistical analysis.
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Affiliation(s)
- Cooper B Ehlers
- School of Medicine, Georgetown University, Washington, DC, USA
| | - Andrew J Curley
- Department of Orthopaedic Surgery, MedStar Georgetown University Hospital, Washington, DC, USA
| | | | - Arjun Minhas
- School of Medicine, Georgetown University, Washington, DC, USA
| | - Edward S Chang
- INOVA Orthopaedics and Sports Medicine, Fairfax, Virginia, USA
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15
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Lameire DL, Abdel Khalik H, Zakharia A, Kay J, Almasri M, de Sa D. Bone Grafting the Patellar Defect After Bone-Patellar Tendon-Bone Anterior Cruciate Ligament Reconstruction Decreases Anterior Knee Morbidity: A Systematic Review. Arthroscopy 2021; 37:2361-2376.e1. [PMID: 33771689 DOI: 10.1016/j.arthro.2021.03.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 03/05/2021] [Accepted: 03/14/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The aim of this systematic review was to evaluate the impact of bone grafting of patellar defects on reported anterior knee morbidity and subjective outcomes after bone-patellar tendon-bone autograft reconstruction of the anterior cruciate ligament. METHODS A systematic electronic search of MEDLINE, Embase, Web of Science, and the Cochrane Library was carried out. All English-language prospective randomized clinical trials published from January 1, 2000, to July 24, 2020, were eligible for inclusion. All studies addressing patellar defect grafting were eligible for inclusion regardless of the timing of surgery, graft type, surgical technique, or rehabilitation protocol. RESULTS A total of 39 studies with 1,955 patients were included for analysis. There were 796 patients in the no patellar grafting (NPG) group, with a mean age range of 22.7 to 33.0 years, and 1,159 patients in the patellar grafting (PG) group, with a mean age range of 17.8 to 34.7 years. The visual analog scale pain score ranged from 1.2 to 5.1 in the NPG group compared with 0.3 to 3.7 in the PG group. The proportion of patients with anterior knee pain ranged from 19% to 81% in the NPG group and from 15% to 32% in the PG group. Moderate to severe kneeling pain was reported in 22% to 57% of patients in the NPG group and 10% of those in the PG group. The percentage of patients with at least 3° of extension loss ranged from 4% to 43% in the NPG group and from 2% to 11% in the PG group. CONCLUSIONS PG favors decreased anterior knee pain, kneeling pain, and extension loss compared with non-grafted defects; however, the functional outcomes are comparable. Owing to the heterogeneity in reporting, statistical conclusions could not be drawn. LEVEL OF EVIDENCE Level II, systematic review of Level I and II studies.
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Affiliation(s)
- Darius L Lameire
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Hassaan Abdel Khalik
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Alexander Zakharia
- MacSports Research Program, McMaster University, Hamilton, Ontario, Canada
| | - Jeffrey Kay
- Division of Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Mahmoud Almasri
- Division of Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada; Mercy Health-Cincinnati Sports Medicine and Orthopaedic Center, Cincinnati, Ohio, U.S.A
| | - Darren de Sa
- Division of Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada.
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16
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Clifford C, Ayre C, Edwards L, Guy S, Jones A. Acute knee clinics are effective in reducing delay to diagnosis following anterior cruciate ligament injury. Knee 2021; 30:267-274. [PMID: 33979729 DOI: 10.1016/j.knee.2021.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 02/10/2021] [Accepted: 04/09/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Delays to diagnosis of anterior cruciate ligament (ACL) injury and specialist consultation continue to place patients at risk of early onset osteoarthritis. Incorporating acute knee clinics within a streamlined accident and emergency (A&E) pathway have shown potential in reducing delay but specific evaluative research is lacking. The aim of this service evaluation was to investigate the effectiveness of an acute knee clinic at one NHS Trust in the United Kingdom (UK), on reducing the delay to diagnosis of ACL injury and specialist consultation compared to a standard A&E pathway. METHODS An uncontrolled before and after design was utilised for this service evaluation. Data were collected from historical electronic patient records over a 1-year period with analysed results compared against previously collected data from the same NHS Trust. RESULTS 81 records met the criteria for the streamlined A&E pathway and were compared against 50 from the standard A&E pathway. For the streamlined A&E pathway median delay to diagnosis reduced from 97 to 14 days and delay to specialist consultation reduced from 158.5 to 45 days and were of statistical significance. The incorporation of an acute knee clinic was identified as the most influential factor on delay in addition to the location of presentation and mechanism of injury. CONCLUSIONS Introducing an acute knee clinic within a streamlined A&E pathway has a clinically relevant effect on reducing delay to diagnosis and specialist consultation and allows findings to be extrapolated and implemented to all UK based NHS Trust A&E departments.
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Affiliation(s)
- Carl Clifford
- Bradford Teaching Hospitals NHS Foundation Trust, Physiotherapy Department, Bradford Royal Infirmary, Bradford BD9 6DA, UK.
| | - Colin Ayre
- Bradford Teaching Hospitals NHS Foundation Trust, Department of Trauma and Orthopaedics, Bradford Royal Infirmary, Bradford BD9 6DA, UK; University of Bradford, Faculty of Health Studies, Bradford BD7 1DP, UK
| | - Lisa Edwards
- University of Bradford, Faculty of Health Studies, Bradford BD7 1DP, UK
| | - Stephen Guy
- Bradford Teaching Hospitals NHS Foundation Trust, Department of Trauma and Orthopaedics, Bradford Royal Infirmary, Bradford BD9 6DA, UK
| | - Alistair Jones
- Bradford Teaching Hospitals NHS Foundation Trust, Accident and Emergency Department MSK Service, Bradford Royal Infirmary, Bradford BD9 6DA, UK
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Schagemann J, Koebrich T, Wendlandt R, Schulz AP, Gille J, Oheim R. Comparison of hamstring and quadriceps tendon autografts in anterior cruciate ligament reconstruction with gait analysis and surface electromyography. J Orthop Traumatol 2021; 22:20. [PMID: 34021423 PMCID: PMC8140171 DOI: 10.1186/s10195-021-00581-z] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/27/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Anterior cruciate ligament (ACL) tear is the most frequent ligamentous injury of the knee joint. Autografts of hamstring (HS) or quadriceps tendons (QT) are used for primary ACL reconstruction. In this study, we planned to examine whether harvesting an HS graft is related to a deficit in dynamic knee stabilisation and strength revealed by dynamic valgus as compared with QT graft or the uninjured leg. Furthermore, if this deficit exists, is it compensated by higher neuromuscular activity of the quadriceps muscle? MATERIALS AND METHODS Adult patients who had undergone ACL reconstruction with QT or HS autografts were included in this two-armed cohort study. Clinical outcome was assessed by clinical data analysis, physical examination and the Lysholm Score and Knee Injury and Osteoarthritis Score (KOOS). In addition, gait analysis and non-invasive surface electromyography were performed. RESULTS A complete data set of 25 patients (QT: N = 8, HS: N = 17) was analysed. There was no significant demographic difference between the groups. Time between surgery and follow-up was significantly longer for the QT group. Significant differences regarding clinical outcome were not found between the treated and untreated leg or between the two groups, with excellent scores at the time of follow-up. Gait analysis revealed no significant differences of varus-valgus angles. Significant differences in surface electromyography were only found in the QT group with increased vastus medialis obliquus activity of the treated legs (p < 0.01). CONCLUSIONS Our results suggest that harvesting of HS grafts for primary ACL reconstruction will not lead to a medial collapse and consequently impaired medial stabilisation of the knee when compared with QT grafts. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- J Schagemann
- Clinic for Orthopedics and Trauma Surgery, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany.
| | - T Koebrich
- Clinic for Orthopedics and Trauma Surgery, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany
| | - R Wendlandt
- Clinic for Orthopedics and Trauma Surgery, Laboratory for Biomechanics, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee, 160, 23538, Luebeck, Germany
| | - A P Schulz
- Clinic for Orthopedics and Trauma Surgery, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany.,Clinic for Orthopedics and Trauma Surgery, Laboratory for Biomechanics, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee, 160, 23538, Luebeck, Germany.,BG Klinikum Hamburg, Bergedorfer Straße 10, 21033, Hamburg, Germany
| | - J Gille
- Clinic for Orthopedics and Trauma Surgery, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany.,BG Klinikum Hamburg, Bergedorfer Straße 10, 21033, Hamburg, Germany
| | - R Oheim
- Clinic for Orthopedics and Trauma Surgery, University Medical Center Schleswig Holstein UKSH Campus Luebeck, Ratzeburger Allee 160, 23538, Luebeck, Germany.,BG Klinikum Hamburg, Bergedorfer Straße 10, 21033, Hamburg, Germany
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18
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Mo Z, Li D, Yang B, Tang S. Comparative Efficacy of Graft Options in Anterior Cruciate Ligament Reconstruction: A Systematic Review and Network Meta-Analysis. Arthrosc Sports Med Rehabil 2020; 2:e645-e654. [PMID: 33135006 PMCID: PMC7588648 DOI: 10.1016/j.asmr.2020.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 05/13/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose To evaluate the effectiveness of various graft options for anterior cruciate ligament reconstruction using network meta-analysis. Methods A medical literature search was conducted of PubMed, the Cochrane Library, Embase, SCOPUS, and Web of Science from their inception through March 1, 2019. The outcomes, including International Knee Documentation Committee (IKDC) form, Lachman test, Lysholm score, Pivot shift test, and Tegner score, were evaluated among graft options. Data extraction was carried out according to inclusion and exclusion criteria, and a network meta-analysis was performed using STATA 14.0. Results A total of 45 trials with 3992 patients were included. The forest plots revealed no significant differences in IKDC, Lysholm, or Tegner score among the grafts. In Lachman score, a significant difference was found in the comparisons of hamstring tendon allograft (HT-AL) versus patellar tendon autograft (PT-AU) and HT-AL versus hamstring tendon autograft (HT-AU). In pivot shift test, PT-AU was superior to all the other grafts, and quadriceps tendon autograft (QT-AU) was superior to HT-AL and artificial ligament (Art-L) in the number of cases with negative results. According to surface under the cumulative ranking area (SUCRA), PT-AU had the highest probability to be the best intervention in Lachman test and Tegner score; tibialis anterior tendon allograft (TA-AL) in IKDC and Lysholm score; and QT-AU in pivot shift test. Based on the cluster analysis of SUCRA, PT-AU was considered the most appropriate intervention by IKDC and Lachman test. Conclusion This study suggests that PT-AU may be the most appropriate graft for ACL reconstruction according to IKDC and Lachman test results. Level of Evidence Level I, network meta-analysis of randomized controlled trials.
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Affiliation(s)
| | | | | | - Shujie Tang
- Address correspondence to Shujie Tang, M.D., Ph.D., 601 Huangpu Dadao Road, Guangzhou city, Guangdong province, 510632, China.
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19
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Reconstruction of the anterior cruciate- and anterolateral ligament deficient knee with a modified iliotibial graft reduces instability more than with an intra-articular hamstring graft. Knee Surg Sports Traumatol Arthrosc 2020; 28:2526-2534. [PMID: 32040678 DOI: 10.1007/s00167-020-05850-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 01/10/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE To compare knee kinematics before and after anterior cruciate ligament ACL reconstruction (ACL-R) using hamstring graft (HG) and a double-stranded iliotibial tract graft attached to Gerdy's tubercle (providing an extra-articular anterolateral tenodesis) (named the modified iliotibial tract graft = MIT). METHOD Eighteen cadaveric knees were tested in a 6 degree of freedom kinematics rig. An optical tracking system recorded kinematics of the knee from 0 to 80 degrees of flexion applying no load, internal/external rotation (IR/ER), valgus/varus rotation (VGR/VRR), simulated pivot shift (SPS), anterior translation (AT) and posterior translation loads. The knee was tested before and after resection of the ACL and the anterolateral ligament (ALL), respectively; then after HG-ACL-R and MIT-ACL-R. Grafts were fixed at 20° of flexion. Results were compared to the intact knee. RESULTS ACL resection resulted in a significant increase in AT (p < 0.05) over the entire range of motion, peaking at 20° of flexion, mean difference 6.6 ± 2.25 mm (p = 0.0007). ACL-R with HG-ACL and MIT-ACL restored AT. Resection of the ALL increased IR in the fully extended knee, mean difference 2.4 ± 2.1° (p = 0.024). When compared to the intact knee and the knee after HG-ACL-R, MIT-ACL-R knee reduced IR/SPS significantly (p < 0.05) in deep flexion angles (60°-80°), peaking at 80° of flexion. The MIT-ACL-R caused significantly less VRR at 80° flexion (p = 0.02). CONCLUSION MIT-ACL-R restored AT equally to the HG-ACL-R. The MIT-ACL-R reduced IR and SPS in deep flexion, resulting in overconstraint. MIT-ACL-R can be used as an alternative to standard reconstruction methods.
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20
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Roger J, Bertani A, Vigouroux F, Mottier F, Gaillard R, Have L, Rongièras F. ACL reconstruction using a quadruple semitendinosus graft with cortical fixations gives suitable isokinetic and clinical outcomes after 2 years. Knee Surg Sports Traumatol Arthrosc 2020; 28:2468-2477. [PMID: 32699919 DOI: 10.1007/s00167-020-06121-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 06/24/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE The objective of this single-center randomized single-blinded trial was to assess the hypothesis that anterior cruciate ligament reconstruction (ACLR) using a four-strand semitendinosus (ST) graft with adjustable femoral and tibial cortical fixation produced good outcomes compared to an ST/gracilis (ST/G) graft with femoral pin transfixation and tibial bioscrew fixation. Follow-up was 2 years. METHODS Patients older than 16 years who underwent primary isolated ACLR included for 1 year until August 2017 were eligible. The primary outcome measures were the subjective International Knee Documentation Committee (IKDC) score, isokinetic muscle strength recovery, and return to work within 2 years. The study was approved by the ethics committee. RESULTS Of 66 eligible patients, 60 completed the study and were included, 33 in the 4ST group and 27 in the ST/G group. Mean age was 30.5 ± 8.9 years in the 4ST group and 30.3 ± 8.5 in the ST/G group (n.s.). No significant between-group differences were found for mean postoperative subjective IKDC (4ST group, 80.2 ± 12.5; ST/G group, 83.6 ± 13.6; n.s.), side-to-side percentage deficits in isokinetic hamstring strength (at 60°/s: ST group, 17% ± 16%; ST/G group, 14% ± 11%; n.s.) or quadriceps strength (at 60°/s: ST group, 14% ± 12%; ST/G group, 19% ± 17%; n.s.), return to work, pain during physical activities, side-to-side differential laxity, balance, loss of flexion/extension, or surgical complications. CONCLUSION This trial demonstrates that functional outcomes after 4ST for ACLR with cortical fixations could be as good, although not better, than those obtained using ST/G. The 4ST technique spares the gracilis tendon, which thus preserves the medial sided muscle and thereby could improve function and limit donor-side morbidity. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Julien Roger
- Division of Orthopaedic Surgery, Department of Surgery, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France.
| | - Antoine Bertani
- Division of Orthopaedic Surgery, Department of Surgery, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
| | - Florence Vigouroux
- Division of Orthopaedic Surgery, Department of Surgery, Hôpital d'Instruction des Armées Bégin, Service de Santé des Armées, Saint-Mandé, France
| | - Franck Mottier
- Division of Orthopaedic Surgery, Department of Surgery, Centre Hospitalier Pierre Oudot, Bourgoin-Jallieu, France
| | - Romain Gaillard
- Division of Orthopaedic Surgery, Department of Surgery, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004, Lyon, France
| | - Laurence Have
- Department of Physical and Medical Rehabilitation, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Frédéric Rongièras
- Division of Orthopaedic Surgery, Department of Surgery, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
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Hexter AT, Hing KA, Haddad FS, Blunn G. Decellularized porcine xenograft for anterior cruciate ligament reconstruction: A histological study in sheep comparing cross-pin and cortical suspensory femoral fixation. Bone Joint Res 2020; 9:293-301. [PMID: 32728430 PMCID: PMC7376309 DOI: 10.1302/2046-3758.96.bjr-2020-0030.r2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Aims To evaluate graft healing of decellularized porcine superflexor tendon (pSFT) xenograft in an ovine anterior cruciate ligament (ACL) reconstruction model using two femoral fixation devices. Also, to determine if pSFT allows functional recovery of gait as compared with the preoperative measurements. Methods A total of 12 sheep underwent unilateral single-bundle ACL reconstruction using pSFT. Two femoral fixation devices were investigated: Group 1 (n = 6) used cortical suspensory fixation (Endobutton CL) and Group 2 (n = 6) used cross-pin fixation (Stratis ST). A soft screw was used for tibial fixation. Functional recovery was quantified using force plate analysis at weeks 5, 8, and 11. The sheep were euthanized after 12 weeks and comprehensive histological analysis characterized graft healing at the graft-bone interface and the intra-articular graft (ligamentization). Results The pSFT remodelled into a ligament-like structure and no adverse inflammatory reaction was seen. The ground reaction force in the operated leg of the Endobutton group was higher at 11 weeks (p < 0.05). An indirect insertion was seen at the graft-bone interface characterized by Sharpey-like fibres. Qualitative differences in tendon remodelling were seen between the two groups, with greater crimp-like organization and more aligned collagen fibres seen with Endobutton fixation. One graft rupture occurred in the cross-pin group, which histologically showed low collagen organization. Conclusion Decellularized pSFT xenograft remodels into a ligament-like structure after 12 weeks and regenerates an indirect-type insertion with Sharpey-like fibres. No adverse inflammatory reaction was observed. Cortical suspensory femoral fixation was associated with more enhanced graft remodelling and earlier functional recovery when compared with the stiffer cross-pin fixation.
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Affiliation(s)
- Adam T Hexter
- Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery and Interventional Science, University College London, London, UK; NIHR Academic Clinical Fellow, Royal National Orthopaedic Hospital, London, UK
| | - Karin A Hing
- Institute of Bioengineering and School of Engineering and Materials, Queen Mary University of London, London, UK
| | | | - Gordon Blunn
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
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22
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Williams T, Burley D, Evans L, Robertson A, Hardy L, Roy S, Lewis D. The structural validity of the IKDC and its relationship with quality of life following ACL reconstruction. Scand J Med Sci Sports 2020; 30:1748-1757. [PMID: 32492229 DOI: 10.1111/sms.13738] [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] [Received: 02/03/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The purpose of this study was to (a) examine the structural validity of the International Knee Documentation Committee Subjective Knee Form in light of previously reported dimensionality issues, and (b) examine the relationships between the IKDC and patients' knee-related quality of life 2-9 years after anterior cruciate ligament (ACL) reconstruction. METHODS A prospective research design was employed, wherein 319 patients (mean age = 29.07, SD = 9.03) completed the IKDC before surgery, 191 patients (mean age = 29.71, SD = 9.36) completed the IKDC at 6 months post-surgery, and 132 patients (mean age = 34.34, SD = 7.89) completed the IKDC and the Anterior Cruciate Ligament Quality of Life Survey (ACL-QOL) at 2-9 years post-surgery. RESULTS Bayesian structural equation modeling analysis confirmed the two-factor structure (symptom & knee articulation and activity level) represented the most accurate conceptualization of perceived knee function across the three time-points. Moreover, findings revealed that of the two IKDC subscales pre-operatively, activity level was most strongly associated with long-term quality of life at 2-9 years following surgery, whereas 2-9 years post-operatively, symptoms and knee articulation was most strongly associated with long-term quality of life. CONCLUSIONS The IKDC provides clinicians with a convenient total score to assess patients' perceived knee function, but its unidimensional factor structure is a poor representation of its items and fails to detect discrepancies in patients' post-operative quality of life, such as the relative importance of perceived knee activity level before reconstructive surgery.
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Affiliation(s)
- Tom Williams
- School of Health, Sport & Professional Practice, University of South Wales, Pontypridd, UK
| | - Daniel Burley
- School of Psychology, Cardiff University, Cardiff, UK
| | - Lynne Evans
- School of Sport & Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Angus Robertson
- Cardiff Sports Orthopaedics LLP, Spire Cardiff Hospital, Cardiff, UK
| | - Lew Hardy
- School of Sport, Health & Exercise Sciences, Bangor University, Bangor, UK
| | - Stuart Roy
- Cardiff Sports Orthopaedics LLP, Spire Cardiff Hospital, Cardiff, UK
| | - Daniel Lewis
- Cardiff Sports Orthopaedics LLP, Spire Cardiff Hospital, Cardiff, UK
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23
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Trąbka R, Maicki T, Kamiński P, Pawełczyk A, Zieliński P, Wilk-Frańczuk M. Outcomes Following Arthroscopic Single and Double Bundle Anterior Cruciate Ligament (ACL) Reconstruction Supported by the Comprehensive Early Rehabilitation Program (CERP). Med Sci Monit 2020; 26:e921003. [PMID: 32396534 PMCID: PMC7243622 DOI: 10.12659/msm.921003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background The aim of this study was to compare the level of functional condition in patients who had rehabilitation with the comprehensive early rehabilitation program (CERP) following either single bundle (SB) or double bundle (DB) anterior cruciate ligament reconstruction (ACLR) using semitendinosus-gracilis tendon graft (ST-G) method. We hypothesized that 12 weeks after reconstruction followed by a rehabilitation program, there would be a difference in clinical results and functional activity between patients. Material/Methods This study included 94 patients who had rehabilitation with CERP after knee surgery for a knee injury from a recreational sport. There were 49 patients in Group 1 (mean age, 36.5 years) who had CERP after SB ACLR, and 45 patients in Group 2 (mean age, 35.6 years) who had CERP after DB ACLR. Functional condition was tested using the Lysholm Knee Scoring Scale, and knee stability was measured using KT-2000. The first examination was performed before CERP and the second examination was performed 12 weeks later. Results The level of functional condition in both groups was similar before rehabilitation with CERP, with no significant difference (P<0.958) and was considered relatively low. In the second examination, 12 weeks after starting CERP, the patients improved in both groups. The improvement was larger in the SB ACLR Group 1 than in the DB ACLR Group 2. The difference was significant (P<0.005). However, the patients in Group 2 achieved better knee stability scores in the KT-2000 examination than the patients in Group 1. The difference was significant (P=0.035). Conclusions We found that the patients from both groups after 12 weeks of CERP achieved an improvement in stability and functional activity within normal limits. However, SB ACLR was more effective than DB ACLR in terms of the level of functionality achieved with CERP but was less effective in terms of knee stability.
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Affiliation(s)
- Rafał Trąbka
- Clinic of Rehabilitation, Faculty of Health and Sciences, Jagiellonian University Medical College, Cracow, Poland
| | - Tomasz Maicki
- Clinic of Rehabilitation, Faculty of Health and Sciences, Jagiellonian University Medical College, Cracow, Poland
| | - Paweł Kamiński
- Department of Orthopaedic, Cracow Rehabilitation and Orthopaedic Centre, Cracow, Poland
| | - Agata Pawełczyk
- Clinic of Rehabilitation, Faculty of Health and Sciences, Jagiellonian University Medical College, Cracow, Poland
| | - Paweł Zieliński
- Department of Orthopaedic , Cracow Rehabilitation and Orthopaedic Centre, Cracow, Poland
| | - Magdalena Wilk-Frańczuk
- Clinic of Rehabilitation, Faculty of Health and Sciences, Jagiellonian University Medical College, Cracow, Poland.,Department of Orthopaedic, Cracow Rehabilitation and Orthopaedic Centre, Cracow, China (mainland)
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Migliorini F, Eschweiler J, Mansy YE, Quack V, Tingart M, Driessen A. Quadriceps tendon autograft for primary ACL reconstruction: a Bayesian network meta-analysis. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2020; 30:1129-1138. [PMID: 32367221 PMCID: PMC8215032 DOI: 10.1007/s00590-020-02680-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/22/2020] [Indexed: 01/09/2023]
Abstract
Background The purpose of the current study was to clarify the role of the quadriceps tendon (QT) autograft for primary ACL reconstruction. Thus, a Bayesian network meta-analysis comparing patients undergoing a primary ACL reconstruction with QT versus patellar tendon (PT) and hamstring tendon (HT) autografts was conducted. Material and methods This Bayesian network meta-analysis was conducted according to the PRISMA extension statement for reporting systematic reviews incorporating network meta-analyses of health care interventions. In January 2020, the main databases were accessed. Articles comparing the outcomes of the QT autograft versus HT autograft and/or PT autograft for primary ACL reconstruction were included in the present study. The statistical analysis was performed with STATA Software/MP, through a Bayesian hierarchical random-effect model analysis. Results Data from a total of 2603 knees were analysed. The overall mean follow-up was 35.0 months. Among the different grafts were evidenced comparable values of IKDC, Tegner and Lysholm score. The QT autograft detected comparable rate of Lachman test > 3 mm, Pivot shift test > 3 m and instrumental laxity > 3 mm. The QT autograft showed a lower rate of autograft failure above all. The QT autograft detected the reduced rate of AKP than the PT. Conclusion Quadriceps tendon autograft may represent a feasible option for primary ACL reconstruction. These results must be interpret within the limitations of the present network meta-anlaysis.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedics, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
| | - Jörg Eschweiler
- Department of Orthopaedics, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Yasser El Mansy
- Department of Orthopaedics, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.,Department of Orthopaedics, University Clinic of Alexandria, Alexandria, Egypt
| | - Valentin Quack
- Department of Orthopaedics, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Markus Tingart
- Department of Orthopaedics, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Arne Driessen
- Department of Orthopaedics, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
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25
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Sonnery-Cottet B, Pioger C, Vieira TD, Franck F, Kajetanek C, Fayard JM, Thaunat M, Saithna A. Combined ACL and Anterolateral Reconstruction Is Not Associated With a Higher Risk of Adverse Outcomes: Preliminary Results From the SANTI Randomized Controlled Trial. Orthop J Sports Med 2020; 8:2325967120918490. [PMID: 32490026 PMCID: PMC7238835 DOI: 10.1177/2325967120918490] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background The widespread historical abandonment of lateral extra-articular procedures in anterior cruciate ligament (ACL) injuries occurred as a result of concerns about high rates of adverse events. Recently, the popularity of lateral extra-articular procedures has resurged, warranting an urgent evaluation of their safety profile. Purpose/Hypothesis The aim of this study was to perform an interim analysis of the ongoing SANTI randomized controlled trial to determine whether combined ACL and anterolateral ligament reconstruction (ACL + ALLR) is associated with an increased rate of adverse outcomes when compared with isolated ACL reconstruction (ACLR). The hypothesis was that there would be no significant difference between groups at a minimum follow-up of 1 year. Study Design Randomized controlled trial; Level of evidence, 1. Methods Recruitment commenced in November 2016. Patients scheduled for ACLR were randomized to either isolated ACLR (with bone-patellar tendon-bone [BPTB] autograft) or combined ACL + ALLR (with hamstring tendon autograft). All patients with a minimum follow-up of 1 year by March 2019 were included. The evaluated parameters included complications and reoperations, knee laxity parameters, range of motion, and scores on the Tegner, Lysholm, International Knee Documentation Committee (IKDC), and Knee injury and Osteoarthritis Outcome Score (KOOS) instruments. Results A total of 224 patients (112 in each group) with a mean ± SD follow-up of 12.3 ± 1.9 months (range, 12-19 months) formed the study population. A significantly higher rate of reoperation for cyclops syndrome was noted in the isolated ACLR group compared with the combined ACL + ALLR group (8.9% vs 0%, respectively; P = .0012). No significant differences were found in frequency of graft rupture (ACLR, 5.4%; ACL + ALLR, 0.9%; P = .1191), range of motion deficits, pain, or reoperation for meniscectomy between groups. No cases of postoperative infection, venous thromboembolism, or arthrofibrosis were seen. Subjective IKDC (81.2 vs 86.8; P = .0048), Lysholm (88 vs 92; P = .0131), and some components of the KOOS were significantly better in the combined ACL + ALLR group. Conclusion This study demonstrates no evidence of an increased risk of short-term adverse events after combined ACL + ALLR compared with isolated ACLR with BPTB graft. Registration NCT03740022 (ClinicalTrials.gov Identifier).
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Affiliation(s)
- Bertrand Sonnery-Cottet
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Charles Pioger
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Florent Franck
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Charles Kajetanek
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Jean-Marie Fayard
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Mathieu Thaunat
- Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, FIFA Medical Centre of Excellence, Groupe Ramsay GDS, Lyon, France
| | - Adnan Saithna
- Sano Orthopedics, Advanced Orthopedics and Sports Medicine, Kansas City, Missouri, USA
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Hiranaka T, Furumatsu T, Kamatsuki Y, Sugiu K, Miyazawa S, Okazaki Y, Masuda S, Okazaki Y, Kodama Y, Ozaki T. Early chondral damage following meniscus repairs with anterior cruciate ligament reconstruction. ASIA-PACIFIC JOURNAL OF SPORT MEDICINE ARTHROSCOPY REHABILITATION AND TECHNOLOGY 2020; 20:1-5. [PMID: 32042596 PMCID: PMC6997621 DOI: 10.1016/j.asmart.2020.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/10/2020] [Accepted: 01/16/2020] [Indexed: 01/14/2023]
Abstract
Background Meniscal tears are commonly observed in patients with anterior cruciate ligament (ACL) injuries. Meniscal repair has become a common procedure for the injured meniscus, and good clinical outcomes have been reported in such cases when used concurrently with ACL reconstruction. However, it is unclear whether early chondral damage progression can be prevented following meniscal repair with ACL reconstruction, as meniscal damage is a potential risk factor for the development of osteoarthritis. The purpose of this study was to evaluate the zone-specific chondral damage that occurs after arthroscopic meniscal repair with concomitant ACL reconstruction. Our hypothesis was that meniscal repair with ACL reconstruction would not decrease the rate of progression of chondral damage compared to that observed in isolated ACL reconstruction with intact menisci. Methods This study included 40 patients who underwent anatomic double-bundle ACL reconstruction. We divided the patients into the following two groups: Group A with an intact meniscus (20 knees) and Group M requiring meniscal repair (20 knees). Chondral damage was evaluated arthroscopically in six compartments and 40 sub-compartments, and these features were graded using the International Cartilage Repair Society lesion classification. The cartilage damage in each sub-compartment and compartment was compared between the two groups both at reconstruction and at second-look arthroscopy (average 16 months postoperatively). At the latest follow-up examination (average 37 months postoperatively), the International Knee Documentation Committee (IKDC) score was compared between the two groups. Results Group M had a significantly worse cartilage status than Group A in five sub-compartments (mainly in the medial compartment) at reconstruction and in nine sub-compartments (mainly in the bilateral compartments) at second-look arthroscopy. The mean IKDC score was better in Group A than in Group M (Group A; 90 vs. Group M; 86). The overall success rate of meniscal repairs was 92% (23 of 25 menisci) at second-look arthroscopy. Conclusion The progression of post-traumatic chondral damage may occur at a faster rate in patients who require ACL reconstruction and meniscal repair than in patients with intact menisci.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Yusuke Kamatsuki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Kazuhisa Sugiu
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Shinichi Miyazawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Yoshiki Okazaki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Shin Masuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Yuki Okazaki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Yuya Kodama
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
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von Essen C, Eriksson K, Barenius B. Acute ACL reconstruction shows superior clinical results and can be performed safely without an increased risk of developing arthrofibrosis. Knee Surg Sports Traumatol Arthrosc 2020; 28:2036-2043. [PMID: 31559463 PMCID: PMC7347704 DOI: 10.1007/s00167-019-05722-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/11/2019] [Indexed: 01/14/2023]
Abstract
PURPOSE To compare acute ACL reconstruction (ACLR) within 8 days of injury with delayed reconstruction after normalized range of motion (ROM), 6-10 weeks after injury. It was hypothesized that acute ACL reconstruction with modern techniques is safe and can be beneficial in terms of patient-reported outcomes and range of motion. METHODS The effect of acute and delayed ACLR was randomized studied on 70 patients with high recreational activity level, Tegner level 6 or more, between 2006 and 2013. Patient-reported outcomes, objective IKDC, KOOS, and manual stability measurements were documented during the 24-month follow-up period. RESULTS The acute ACLR group did not result in increased stiffness and showed superior outcome regarding strength and how the patient felt their knee functioning at 24 months. In addition, the acute group was not inferior to the delayed group in any assessment. Regarding patient-related outcomes in KOOS, both groups showed significant improvements in all subscales, but no difference was found between the groups. Functional return (FR) rate was almost double compared to the Swedish knee ligament register and treatment failure (TF) rate was reduced by half, no significant difference between the groups. No difference regarding cyclops removal, re-injury of ACL or meniscus was found between the two surgical timing groups. CONCLUSION Acute ACLR within 8 days of injury does not appear to adversely affect ROM or result in increased stiffness in the knee joint and was not inferior to the delayed group in any assessment when compared to delayed surgery. LEVEL OF EVIDENCE I.
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Affiliation(s)
- Christoffer von Essen
- Department of Orthopaedics, Stockholm South Hospital, Karolinska Institutet, Stockholm, Sweden.
| | - Karl Eriksson
- Department of Orthopaedics, Stockholm South Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Björn Barenius
- Department of Orthopaedics, Stockholm South Hospital, Karolinska Institutet, Stockholm, Sweden
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Yang XG, Wang F, He X, Feng JT, Hu YC, Zhang H, Yang L, Hua K. Network meta-analysis of knee outcomes following anterior cruciate ligament reconstruction with various types of tendon grafts. INTERNATIONAL ORTHOPAEDICS 2019; 44:365-380. [PMID: 31858199 DOI: 10.1007/s00264-019-04417-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 09/13/2019] [Indexed: 12/26/2022]
Abstract
PURPOSE Various grafts were selected for restoring knee stability and regaining pre-injury activity levels after anterior cruciate ligament (ACL) rupture. This review aimed to compare the short-term knee outcomes of different tendon grafts for primary ACL reconstruction (ACLR). METHODS Databases of PubMed, Embase, and CENTRAL were retrieved for identifying the published RCT comparing the short-term (≤ 2 years) knee outcomes of different tendon grafts for ACLR. The main outcomes include the International Knee Documentation Committee (IKDC) subjective and objective scores, side-to-side difference on knee laxity, Lachman test, pivot-shift test, Lysholm score, Tegner score, all recorded complications and graft re-ruptures. RESULTS A total of 32 trials involving 2962 patients and 17 grafts were included. Superior IKDC subjective score was found for quadriceps tendon autograft (QTB) when compared with autografts including bone-patellar tendon-bone (BPTB), four-strand hamstring tendon (4S-HT), and double-bundle HT. The 4S-HT autograft was associated with poorer anteroposterior and rotational knee stability than the BPTB autograft. Artificial ligament also was found to provide lower knee stability compared with the autografts including the BPTB, patellar tendon, 4S-HT, 4S-HT with preserved tibial insertion, 6S-HT, and four-strand semitendinosus tendon. Additionally, the BPTB allograft showed a statistically higher knee laxity than 6S-HT allograft, while no difference was found between the genuine autografts and non-irradiated allografts. CONCLUSIONS QTB was recommended to be used even over the BPTB and 4S-HT autografts. BPTB autograft was more effective on restoring the knee stability than 4S-HT autograft. Non-irradiated allografts could be safely used as alternatives to autografts. However, artificial ligaments were not recommended for primary ACLR for significantly increased risk of knee laxity.
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Affiliation(s)
- Xiong-Gang Yang
- Graduate School, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
| | - Feng Wang
- Graduate School, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
| | - Xin He
- Department of Bone Oncology, Tianjin Hospital, 406 Jiefang Southern Road, Tianjin, 300211, China
| | - Jiang-Tao Feng
- Graduate School, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
| | - Yong-Cheng Hu
- Department of Bone Oncology, Tianjin Hospital, 406 Jiefang Southern Road, Tianjin, 300211, China.
| | - Hao Zhang
- Graduate School, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
| | - Li Yang
- Graduate School, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
| | - Kunchi Hua
- Graduate School, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
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Cai WS, Li HH, Konno SI, Numazaki H, Zhou SQ, Zhang YB, Han GT. Patellofemoral MRI Alterations Following Single Bundle ACL Reconstruction with Hamstring Autografts Are Associated with Quadriceps Femoris Atrophy. Curr Med Sci 2019; 39:1029-1036. [PMID: 31845237 DOI: 10.1007/s11596-019-2138-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 11/25/2019] [Indexed: 11/27/2022]
Abstract
High incidence of patellofemoral pain and patellofemoral joint osteoarthritis was found following anterior cruciate ligament (ACL) reconstruction. The unstability of patellofemoral joint might be an important contribution factor. This study was designed to define the relationship between the unstability of patellofemoral joint and quadriceps femoris atrophy. Twenty patients underwent MRI scan before ACL reconstruction and every two weeks after surgery, until 12 weeks. The merchant's patellar congruence angle, lateral inclination angle, and quadriceps femoris muscle cross-sectional area were measured and the relationship between the changes of angles and the ratio of quadriceps femoris atrophy was studied by multiple regression analysis. Significant quadriceps femoris atrophy was observed after ACL reconstruction during the follow-up period of 12 weeks. The merchant's patellar congruence angle and lateral inclination angle significantly changed after surgery. The alterations of the merchant's patellar congruence angle were significantly correlated with the atrophy ratio of vastus medialis (coefficient=-15.76) and vastus lateralis (coefficient=8.35) during the follow-up period of 12 weeks. The alterations of lateral inclination angle were significantly correlated with the atrophy ratio of vastus medialis (coefficient=20.62), vastus lateralis (coefficient=-11.38) and rectus femoris (coefficient=-0.469) during the follow-up period 12 weeks. To sum up, ACL reconstruction can alleviate the dysfunction of patellofemoral joint to a certain extent. But, the unbalanced atrophy of quadriceps femoris once again destroyed the stability of patellofemoral joint following the operation, which might be one cause of patellofemoral joint pain and early onset of osteoarthritis after ACL reconstruction. So, rehabilitation training that focuses on quadriceps femoris especially the vastus medialis shortly following operation is suggested.
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Affiliation(s)
- Wei-Song Cai
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Hao-Huan Li
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Shin-Ichi Konno
- Department of Orthopedics, Fukushima Medical University School of Medicine, Fukushima, 960-1295, Japan
| | - Hironori Numazaki
- Department of Orthopedics, Fukushima Medical University School of Medicine, Fukushima, 960-1295, Japan
| | - Si-Qi Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yu-Biao Zhang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guang-Tao Han
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
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30
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Superior knee flexor strength at 2 years with all-inside short-graft anterior cruciate ligament reconstruction vs a conventional hamstring technique. Knee Surg Sports Traumatol Arthrosc 2019; 27:3592-3598. [PMID: 30888448 DOI: 10.1007/s00167-019-05456-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 02/28/2019] [Indexed: 01/30/2023]
Abstract
PURPOSE To compare the "all-inside technique" for anterior cruciate ligament (ACL) reconstruction using a short, quadrupled semitendinosus tendon (ST4) autograft and suspensory cortical fixation on both the femoral and tibial side vs the "conventional technique" using a semitendinosus/gracilis (ST/G) autograft fixed with a suspensory device on the femoral side and with an interference screw on the tibial side, in terms of clinical and functional outcomes. METHODS A total of 90 patients were enrolled, randomised into two groups, and prospectively followed. Group A comprised 45 patients treated with the all-inside technique and Group B included 45 patients treated with the conventional ACL technique (55 males, 35 females; mean age 28.7 ± 11.3 years). Patients completed the Lysholm knee score, the International Knee Documentation Committee (IKDC) score, the Knee Injury and Osteoarthritis Score (KOOS), and the Knee Society Score (KSS) preoperatively and at 2 years postoperatively. Anterior tibial translation measurement (KT-1000 arthrometer) and isokinetic testing of the operative vs non-operative limb were also conducted and the limb symmetry index (LSI) was determined. RESULTS At 24 months, the Lysholm, IKDC, KOOS, and KSS scores between the two groups were similar (n.s.). Anterior tibial translation between the operative and non-operative knee was also similar among the two groups (n.s.). Patients of Group A had significantly higher mean LSIs in terms of flexor peak torque (1.0 ± 0.1 vs 0.9 ± 0.1; p < 0.001), time-to-peak (0.9 ± 0.1 vs 0.8 ± 0.1; p < 0.001) and total work (0.9 ± 0.1 vs 0.8 ± 0.1; p < 0.001) at 180°/s, and significantly better mean LSI for isometric flexor/extensor ratio at 90° (1.1 ± 0.3 vs 0.8 ± 0.2; p < 0.001). CONCLUSION The all-inside ACL reconstruction with an ST4 autograft and cortical button fixation on both ends is a viable alternative to the conventional technique. It affords preservation of knee flexor strength, which is of advantage, especially when treating athletes with ACL injury. LEVEL OF EVIDENCE I.
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Harris MC, Venrick C, Hines AC, Cook JB, Rowles DJ, Tokish JM, Bottoni CR. Prospective Evaluation of Range of Motion in Acute ACL Reconstruction Using Patellar Tendon Autograft. Orthop J Sports Med 2019; 7:2325967119875415. [PMID: 31637269 PMCID: PMC6785920 DOI: 10.1177/2325967119875415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background: Optimal timing of anterior cruciate ligament (ACL) reconstruction has been a topic of controversy. Reconstruction has historically been delayed for at least 3 weeks, given previous studies reporting a high risk of postoperative arthrofibrosis and suboptimal clinical results. Purpose: To prospectively evaluate postoperative range of motion following acutely reconstructed ACLs with patellar tendon autograft. Study Design: Case series; Level of evidence, 4. Methods: Patients (age >18 years) who had ACL reconstruction as soon as possible after injury, regardless of the condition or preoperative range of motion of the injured knee, underwent reconstruction with patellar tendon autograft. An identical standard surgical technique and postoperative rehabilitation were employed for all patients. Postoperative assessment included active range of motion measurements with a goniometer. Subjective outcomes were assessed with the Knee injury and Osteoarthritis Outcome Score (KOOS). Results: A total of 25 consecutive patients who met the inclusion criteria were enrolled. The mean age was 27.9 years (range, 20-48 years), and 19 were men. The time from injury to surgery was a mean 4.5 days (range, 1-9 days). The mean objective follow-up was 10.9 months (range, 3 days–19.4 months), and range of motion was regained at a mean 4.4 months (range, 1-9 months). Three meniscal repairs and 3 microfractures were performed concomitantly. There was 1 graft failure at 3 years postoperatively, noted at 50 months of subjective follow-up. There was no loss of extension >3° as compared with the contralateral knee in any patient. There was no loss of flexion >5° as compared with the contralateral knee in any patient who completed objective follow-up. The mean KOOS at final subjective follow-up was 82.8 (range, 57.7-98.8) at a mean 56.6 months postoperative (n = 14/24; range, 48-58 months). Conclusion: Excellent clinical results can be achieved following ACL reconstruction performed ≤9 days after injury with patellar tendon autograft. The authors found that early ACL reconstructions do not result in loss of motion or suboptimal clinical results as long as a rehabilitation protocol emphasizing extension and early range of motion is employed.
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Affiliation(s)
- Mitchell C Harris
- Department of Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
| | - Connor Venrick
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Adam C Hines
- Department of Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
| | - Jay B Cook
- Department of Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
| | - Douglas J Rowles
- Department of Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
| | - John M Tokish
- Department of Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
| | - Craig R Bottoni
- Department of Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
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Bahlau D, Favreau H, Eichler D, Lustig S, Bonnomet F, Ehlinger M. Clinical, functional, and isokinetic study of a prospective series of anterior cruciate ligament ligamentoplasty with pedicular hamstrings. INTERNATIONAL ORTHOPAEDICS 2019; 43:2557-2562. [PMID: 31446455 DOI: 10.1007/s00264-019-04392-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 08/13/2019] [Indexed: 11/24/2022]
Abstract
PURPOSE Few studies describe the specific results of anterior cruciate ligament reconstruction with pedicled hamstring graft (HG). Our goal was to report the isokinetic, clinical, and functional outcomes over the post-operative year following pedicled hamstring ligamentoplasty. METHODS Twenty-four patients with ACL rupture (mean age 27.4 years) were included prospectively. The technique used a four-stranded HG transplant pedicled to the tibia. The functional result (Lysholm knee score and subjective IKDC score), clinical result (KT-1000, Lachman test, joint amplitudes, objective IKDC score), and isokinetic complication occurrence were analyzed at six months and 12 months follow-up. The functional results, clinical parameters, and complications were analyzed at 30 months follow-up. The comparison of the variables with the various regressions was carried out by a Wilcoxon sign test. RESULTS Twenty-one patients were reviewed at six, nine, 12, and 30 months. The mean Lysholm knee score was 90/100 at six months, 96/100 at one year, and 95/100 at 30 months. The mean subjective IKDC score was 77/100 and 89/100 at six and 12 months, and 91/100 at 30 months. The mean difference in laxity compared with the healthy knee was 1.4 mm at six months, 1.9 mm at 12 months, and 2 mm at 30 months. The objective IKDC score was A or B for all patients at 12 and 30 months. The average quadriceps strength deficit decreased from 27 to 16% between six and 12 months post-operative (p = 0.0091) and the average flexor deficit from 23 to 12% (p = 0.0084). No complications were identified. CONCLUSION The abovementioned technique allows reaching functional, clinical, and isokinetic results comparable with the standard techniques while preserving the mechanical and biological interest of tibial insertion.
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Affiliation(s)
- David Bahlau
- Service de Chirurgie Orthopédique et de Traumatologie du membre inférieur, CHU Hautepierre 2, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, 67098, Strasbourg Cedex, France
| | - Henri Favreau
- Service de Chirurgie Orthopédique et de Traumatologie du membre inférieur, CHU Hautepierre 2, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, 67098, Strasbourg Cedex, France
| | - David Eichler
- Service de Chirurgie Orthopédique et de Traumatologie du membre inférieur, CHU Hautepierre 2, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, 67098, Strasbourg Cedex, France
| | - Sébastien Lustig
- Département de Chirurgie Orthopédique, Centre Albert-Trillat, Hôpital de la Croix-Rousse, 103 boulevard de la Croix-Rousse, 69004, Lyon, France
| | - François Bonnomet
- Service de Chirurgie Orthopédique et de Traumatologie du membre inférieur, CHU Hautepierre 2, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, 67098, Strasbourg Cedex, France
| | - Matthieu Ehlinger
- Service de Chirurgie Orthopédique et de Traumatologie du membre inférieur, CHU Hautepierre 2, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, 67098, Strasbourg Cedex, France. .,Laboratoire ICube, CNRS UMR 7357, 30 Bd Sébastien Brant, 67400, Illkirch, France.
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Ferguson D, Palmer A, Khan S, Oduoza U, Atkinson H. Early or delayed anterior cruciate ligament reconstruction: Is one superior? A systematic review and meta-analysis. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2019; 29:1277-1289. [PMID: PMID: 31093753 PMCID: PMC6647395 DOI: 10.1007/s00590-019-02442-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 04/23/2019] [Indexed: 01/16/2023]
Abstract
Background Anterior cruciate ligament (ACL) reconstruction is a rapidly developing orthopaedic field and an area of notable clinical equipoise. The optimal timing of surgery in an acute (< 3 weeks) or delayed (≥ 3 weeks) time frame remains unresolved with a 2010 meta-analysis concluding no difference between these two groups across multiple outcomes. In an era of evidence-based medicine, surgeons are still basing their decisions on when to operate on little more than anecdotal evidence and personal preference. Clear guidance is required to determine whether the timing of surgery can optimise outcomes in this largely young and active patient cohort. Methods A systematic literature search was performed in January 2018 of Embase, Medline and OpenGrey in accordance with (PRISMA) guidelines. A total of 658 articles were retrieved, with 6 suitable for inclusion, covering 576 ACL reconstructions. Four meta-analyses were performed assessing subjective measures of Tegner activity scale and Lysholm score, and objective measures of arthroscopically identified meniscal and chondral injury. Additional relevant outcome measures underwent narrative review. Study bias was assessed and reported using the Downs and Black checklist. Results A statistically significant difference of 0.39 points was found on the Tegner activity scale in favour of early surgery within 3 weeks (RR 0.39, CI 0.10, 0.67, p = 0.008). No statistically difference was found between groups for the patient-reported Lysholm score (RR − 0.18, CI − 2.40, 2.05, p = 0.17). There was no statistically significant difference between groups for intra-operative findings of meniscal lesions (RR 0.84, CI 0.66, 1.08, p = 0.17). A trend towards significance was observed for the incidence of chondral lesions in the early surgery group (RR 0.56, CI 0.31, 1.02, p = 0.06). All the studies were rated either fair or good on the Downs and Black checklist with no study excluded due to bias. Conclusions Although there was a statistically significant result for the Tegner activity scale in favour of early surgery, the magnitude of the effect is unlikely to translate into any clinically meaningful difference. At present, there remains no clear evidence to determine superiority of acute/early or delayed reconstruction of a ruptured anterior cruciate ligament. Further research through methodologically robust randomised controlled trials or through the UK National Ligament Registry may help to provide clearer guidance.
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Affiliation(s)
- D Ferguson
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, Windmill Road, Oxford, OX3 7LD, UK.
| | - A Palmer
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, Windmill Road, Oxford, OX3 7LD, UK
| | - S Khan
- Royal National Orthopaedic Hospital, Stanmore, HA7 4LP, UK
| | - U Oduoza
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, Windmill Road, Oxford, OX3 7LD, UK
| | - H Atkinson
- Department of Trauma and Orthopaedic Surgery, North Middlesex University Hospital, London, N18 1QX, UK
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Sajovic M, Stropnik D, Skaza K. Long-term Comparison of Semitendinosus and Gracilis Tendon Versus Patellar Tendon Autografts for Anterior Cruciate Ligament Reconstruction: A 17-Year Follow-up of a Randomized Controlled Trial. Am J Sports Med 2018; 46:1800-1808. [PMID: 29741911 DOI: 10.1177/0363546518768768] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Short-term and mid-term differences between hamstring and patellar tendon autografts for anterior cruciate ligament (ACL) reconstruction are well documented. Systematic reviews highlight the lack of long-term results between the two grafts. HYPOTHESIS Seventeen years after ACL reconstruction, no difference will be found in functional outcome, quality of life, and graft failure between patients with patellar tendon (PT) or semitendinosus and gracilis tendon (STG) autografts; however, a significant difference will be seen in the prevalence of osteoarthritis. STUDY DESIGN Randomized controlled trial; Level of evidence, 2. METHODS Sixty-four patients were included in this prospective study (32 in each group). A single surgeon performed primary ACL reconstruction in alternating sequence. Forty-eight patients (24 in each group) were evaluated 17 years after ACL reconstruction: A clinical assessment was made based on the International Knee Documentation Committee (IKDC) form, instrumented laxity was measured with KT-1000 arthrometer, and radiography of the operated knee was conducted and assessed for degenerative disease. The Lysholm questionnaire and the Short Form-36 version 2 questionnaire were filled out by the patients. RESULTS At the 17-year follow-up, no statistically significant differences were seen with respect to graft failure (2 reruptures in the semitendinosus and gracilis tendon [STG] group [6.3%] and 3 reruptures in the PT group [9.4%]) and functional outcome. Increased instrumented laxity (>3 mm) measured with KT-1000 arthrometer was seen in significantly more patients in the STG group (8 in the STG group compared with 2 in the PT group; P = .03) with a mean side-to-side difference of 2.17 ± 1.86 mm in the STG group compared with 1.33 ± 1.93 mm in the PT group. A significant difference was found in frequency of knee osteoarthritis (OA)-100% in the PT group compared with 71% in the STG group ( P = .004). Patients in the PT group tended to have higher grade OA according to the IKDC grading system, with an average grade of 1.46 in the PT group compared with 1 in the STG group ( P = .055). The degenerative changes in the PT group were more common in the medial and patellofemoral compartments ( P = .003 and P = .04, respectively). CONCLUSION Both autografts provided good to excellent subjective outcomes. No significant differences were noted in graft failure and clinical instability. However, significantly more patients in the STG group had increased instrumented anteroposterior translation measured with KT-1000 arthrometer, and there was a greater prevalence of knee OA at 17 years after surgery in the PT group.
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Affiliation(s)
| | | | - Katja Skaza
- Rehabilitation Center Spa Zrece, Zrece, Slovenia
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Lee DW, Yeom CH, Kim DH, Kim TM, Kim JG. Prevalence and Predictors of Patellofemoral Osteoarthritis after Anterior Cruciate Ligament Reconstruction with Hamstring Tendon Autograft. Clin Orthop Surg 2018; 10:181-190. [PMID: 29854341 PMCID: PMC5964266 DOI: 10.4055/cios.2018.10.2.181] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/15/2018] [Indexed: 01/09/2023] Open
Abstract
Background The present study aimed to evaluate the prevalence of patellofemoral osteoarthritis (PFOA) and identify the factors that affect PFOA development after single-bundle anterior cruciate ligament (ACL) reconstruction with hamstring autograft. We hypothesized that detecting these factors could be helpful in establishment of a rehabilitation strategy to focus on the modifiable factors. Methods Of the 324 patients who underwent primary ACL reconstruction between January 2010 and June 2013, 92 patients who were available for follow-up for a minimum of 36 months after the surgery and underwent second-look arthroscopy were enrolled. Subjective assessments and clinical outcome evaluation were conducted. Arthroscopic cartilage evaluation was done using the Outerbridge classification. Univariable and multivariable logistic regression analyses were used. Results Ninety-two patients were evaluated at an average of 38.9 ± 5.4 months of follow-up. PFOA above grade 2 was observed in 19 patients (20.7%) at the second-look arthroscopy. Of them, three patients with pre-existing PFOA (3.3%) showed progression of the Outerbridge grade, and 16 (17.4%) had newly developed PFOA. According to the multivariable logistic regression analysis, isokinetic extensor deficit at 60°/sec at the last follow-up (odds ratio [OR], 2.193; 95% confidence interval [CI], 1.081 to 12.439; p = 0.031), age at primary surgery (OR, 1.118; 95% CI, 1.019 to 1.227; p = 0.018), and concurrent meniscectomy at primary surgery (OR, 0.091; 95% CI, 1.012 to 1.177; p = 0.023) were the significant predictors of PFOA development. Conclusions Significant predictors of PFOA after ACL reconstruction with hamstring autograft were decreased quadriceps strength at last follow-up, increased age, and concurrent meniscectomy at primary surgery. Quadriceps weakness as a modifiable factor should be considered in the establishment of a rehabilitation strategy to prevent PFOA after ACL reconstruction, especially in older age.
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Affiliation(s)
- Dhong Won Lee
- Department of Orthopaedic Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Cheol Hynn Yeom
- Department of Orthopaedic Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Du Han Kim
- Department of Orthopaedic Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Tae Min Kim
- Department of Orthopaedic Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Jin Goo Kim
- Department of Orthopaedic Surgery, Konkuk University Medical Center, Seoul, Korea
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Eysturoy NH, Nissen KA, Nielsen T, Lind M. The Influence of Graft Fixation Methods on Revision Rates After Primary Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2018; 46:524-530. [PMID: 29337596 DOI: 10.1177/0363546517748924] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The method of graft fixation in primary anterior cruciate ligament (ACL) reconstruction is important for initial stability of the graft. Poor graft fixation can result in failure of the reconstruction. The effect of ACL graft fixation principles and fixation implant combinations on the risk of revision after ACL reconstruction is not well understood. PURPOSE The study aimed to compare the risk of revision among 4 categories of femoral fixation divided by their principle of function using a hamstring tendon (HT) graft only. Furthermore, this study aimed to compare the risk of revision among the most frequently used combinations (tibia and femur) of graft fixation implants in a national patient cohort. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS The authors divided the femoral fixation constructs into 4 categories by their principle of function: cortical suspensory fixation, adjustable cortical suspensory fixation, intratunnel transfixation, and interference screw (aperture) fixation. Data on revision rates and graft fixation methods were extracted from the Danish ACL Reconstruction Registry. The study included patients who underwent primary ACL reconstruction with either an HT or patellar tendon (PT) graft and were followed up at 2 to 10 years. Revision rates at 2-year and full follow-up were extracted for the category of graft fixation in the femur as well as for the most common implant combinations (those involving >175 patients). Patients with infrequently used fixation devices were excluded from this analysis. The HT group included 14 frequently used combinations (n > 175), and there were 2 such combinations in the PT group. A total of 13,200 ACL reconstructions were included in the study. For ACL reconstruction with an HT graft, there were 4680 with cortical suspensory fixation, 577 with adjustable cortical suspensory fixation, 5921 with intratunnel transfixation, and 617 with interference screw fixation. There were 1405 ACL reconstructions with a PT graft. RESULTS When only comparing primary ACL reconstructions using an HT graft, cortical suspensory fixation exhibited a significantly higher risk of revision at 2-year follow-up than the other categories of femoral fixation (hazard ratio [HR], 1.24 [95% CI, 1.07-1.44]; P < .05). Intratunnel transfixation exhibited a significantly lower risk of revision (HR, 0.83 [95% CI, 0.73-0.94]; P < .05). Comparing the most frequently used femoral/tibial fixation implant combinations with the mean risk of revision, Endobutton/Intrafix and Endobutton/Biosure PEEK for HT grafts exhibited an increased risk of revision, with an relative risk (RR) of 1.36 (95% CI, 1.03-1.81; P < .05) and 1.55 (95% CI, 1.15-2.09; P < .05), respectively. The Atlantech metal screw/metal screw and Softsilk/Softsilk combinations (both for PT grafts) exhibited a significantly decreased risk of revision, with an RR of 0.41 (95% CI, 0.18-0.91; P < .05) and 0.36 (95% CI, 0.15-0.87; P < .05), respectively. CONCLUSION When comparing ACL graft fixation methods in the 4 categories using an HT graft, cortical suspensory fixation was found to have a significantly increased risk of revision, while intratunnel transfixation exhibited a lower risk of revision. Both Endobutton/Intrafix and Endobutton/Biosure PEEK implant combinations exhibited a significantly higher risk of revision. For PT grafts, Atlantech metal screw/metal screw and Softsilk/Softsilk exhibited a significantly lower risk of revision.
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Affiliation(s)
- Niclas H Eysturoy
- Division of Sports Traumatology, Department of Orthopedics, Aarhus University Hospital, Aarhus, Denmark
| | - Kåre Amtoft Nissen
- Division of Sports Traumatology, Department of Orthopedics, Aarhus University Hospital, Aarhus, Denmark
| | - Torsten Nielsen
- Division of Sports Traumatology, Department of Orthopedics, Aarhus University Hospital, Aarhus, Denmark
| | - Martin Lind
- Division of Sports Traumatology, Department of Orthopedics, Aarhus University Hospital, Aarhus, Denmark
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Kuenze CM, Kelly AR, Jun HP, Eltoukhy M. Unilateral Quadriceps Strengthening With Disinhibitory Cryotherapy and Quadriceps Symmetry After Anterior Cruciate Ligament Reconstruction. J Athl Train 2017; 52:1010-1018. [PMID: 29257714 DOI: 10.4085/1062-6050-52.10.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
CONTEXT The effect of unilateral cryotherapy-facilitated rehabilitation exercise on involved-limb quadriceps function and limb symmetry in individuals with quadriceps dysfunction after anterior cruciate ligament reconstruction (ACLR) remains unclear. OBJECTIVE To measure the effect of a 2-week unilateral cryotherapy-facilitated quadriceps-strengthening program on knee-extension strength and quadriceps central activation ratio (CAR) in participants with ACLR. DESIGN Controlled laboratory study. SETTING Laboratory. PATIENTS OR OTHER PARTICIPANTS A total of 10 volunteers with unilateral ACLR (1 man, 9 women; age = 21.0 ± 2.8 years, height = 164.6 ± 5.0 cm, mass = 64.0 ± 6.1 kg, body mass index = 23.7 ± 2.7 kg/m2) and 10 healthy volunteers serving as control participants (1 man, 9 women; age = 20.8 ± 2.5 years, height = 169.1 ± 6.2 cm, mass = 61.1 ± 6.4 kg, body mass index = 21.4 ± 2.3 kg/m2) participated. INTERVENTION(S) Participants with ACLR completed a 2-week unilateral cryotherapy-facilitated quadriceps-strengthening intervention. MAIN OUTCOME MEASURE(S) Bilateral normalized knee-extension maximal voluntary isometric contraction (MVIC) torque (Nm/kg) and quadriceps CAR (%) were assessed preintervention and postintervention. Limb symmetry index (LSI) was calculated at preintervention and postintervention testing. Preintervention between-groups differences in unilateral quadriceps function and LSI were evaluated using independent-samples t tests. Preintervention-to-postintervention differences in quadriceps function were evaluated using paired-samples t tests. Cohen d effect sizes (95% confidence interval [CI]) were calculated for each comparison. RESULTS Preintervention between-groups comparisons revealed less knee-extension MVIC torque and quadriceps CAR for the ACLR limb (MVIC: P = .01, Cohen d = -1.31 [95% CI = -2.28, -0.34]; CAR: P = .004, Cohen d = -1.48 [95% CI = -2.47, -0.49]) and uninvolved limb (MVIC: P = .03, Cohen d = -1.05 [95% CI = -1.99, -0.11]; CAR: P = .01, Cohen d = -1.27 [95% CI = -2.23, -0.31]) but not for the LSI (MVIC: P = .46, Cohen d = -0.34 [95% CI = -1.22, 0.54]; CAR: P = .60, Cohen d = 0.24 [95% CI = -0.64, 1.12]). In the ACLR group, participants had improved knee-extension MVIC torque in the involved limb ( P = .04, Cohen d = 0.32 [95% CI = -0.56, 1.20]) and uninvolved limb ( P = .03, Cohen d = 0.29 [95% CI = -0.59, 1.17]); however, the improvement in quadriceps CAR was limited to the involved limb ( P = .02, Cohen d = 1.16 [95% CI = 0.21, 2.11]). We observed no change in the LSI with the intervention for knee-extension MVIC torque ( P = .74, Cohen d = 0.09 [95% CI = -0.79, 0.97]) or quadriceps CAR ( P = .61, Cohen d = 0.26 [95% CI = -0.62, 1.14]). CONCLUSIONS Two weeks of cryotherapy-facilitated exercise may improve involved-limb quadriceps function while preserving between-limbs symmetry in patients with a history of ACLR.
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Affiliation(s)
| | - Adam R Kelly
- Department of Kinesiology, Michigan State University, East Lansing
| | - Hyung-Pil Jun
- Department of Movement Sciences, University of Idaho, Moscow
| | - Moataz Eltoukhy
- Department of Kinesiology, University of Miami, Coral Gables, FL
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Kaiser JM, Vignos MF, Kijowski R, Baer G, Thelen DG. Effect of Loading on In Vivo Tibiofemoral and Patellofemoral Kinematics of Healthy and ACL-Reconstructed Knees. Am J Sports Med 2017; 45:3272-3279. [PMID: 28903010 PMCID: PMC5955618 DOI: 10.1177/0363546517724417] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although knees that have undergone anterior cruciate ligament reconstruction (ACLR) often exhibit normal laxity on clinical examination, abnormal kinematic patterns have been observed when the joint is dynamically loaded during whole body activity. This study investigated whether abnormal knee kinematics arise with loading under isolated dynamic movements. HYPOTHESIS Tibiofemoral and patellofemoral kinematics of ACLR knees will be similar to those of the contralateral uninjured control knee during passive flexion-extension, with bilateral differences emerging when an inertial load is applied. STUDY DESIGN Controlled laboratory study. METHODS The bilateral knees of 18 subjects who had undergone unilateral ACLR within the past 4 years were imaged by use of magnetic resonance imaging (MRI). Their knees were cyclically (0.5 Hz) flexed passively. Subjects then actively flexed and extended their knees against an inertial load that induced stretch-shortening quadriceps contractions, as seen during the load acceptance phase of gait. A dynamic, volumetric, MRI sequence was used to track tibiofemoral and patellofemoral kinematics through 6 degrees of freedom. A repeated-measures analysis of variance was used to compare secondary tibiofemoral and patellofemoral kinematics between ACLR and healthy contralateral knees during the passive and active extension phases of the cyclic motion. RESULTS Relative to the passive motion, inertial loading induced significant shifts in anterior and superior tibial translation, internal tibial rotation, and all patellofemoral degrees of freedom. As hypothesized, tibiofemoral and patellofemoral kinematics were bilaterally symmetric during the passive condition. However, inertial loading induced bilateral differences, with the ACLR knees exhibiting a significant shift toward external tibial rotation. A trend toward greater medial and anterior tibial translation was seen in the ACLR knees. CONCLUSION This study demonstrates that abnormal knee kinematic patterns in ACLR knees emerge during a simple, active knee flexion-extension task that can be performed in an MRI scanner. CLINICAL RELEVANCE It is hypothesized that abnormal knee kinematics may alter cartilage loading patterns and thereby contribute to increased risk for osteoarthritis. Recent advances in quantitative MRI can be used to detect early cartilage degeneration in ACLR knees. This study demonstrates the feasibility of identifying abnormal ACLR kinematics by use of dynamic MRI, supporting the combined use of dynamic and quantitative MRI to investigate the proposed link between knee motion, cartilage contact, and early biomarkers of cartilage degeneration.
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Affiliation(s)
- Jarred M. Kaiser
- Address correspondence to Jarred M. Kaiser, PhD, Department of Mechanical Engineering, University of Wisconsin–Madison, 1513 University Ave, Madison, WI 53706, USA ()
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Samuelsen BT, Webster KE, Johnson NR, Hewett TE, Krych AJ. Hamstring Autograft versus Patellar Tendon Autograft for ACL Reconstruction: Is There a Difference in Graft Failure Rate? A Meta-analysis of 47,613 Patients. Clin Orthop Relat Res 2017; 475:2459-2468. [PMID: 28205075 PMCID: PMC5599382 DOI: 10.1007/s11999-017-5278-9] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Bone-patellar tendon-bone (bone-tendon-bone) and four-strand hamstring tendon grafts (hamstring) are the most commonly utilized autografts for primary anterior cruciate ligament (ACL) reconstruction. Existing clinical trials, registry studies, and meta-analyses offer conflicting opinions regarding the most favorable graft choice. QUESTIONS/PURPOSES Which graft type for ACL reconstruction (bone-tendon-bone or hamstring) has a higher risk of (1) graft rupture and/or (2) graft laxity? METHODS We performed a meta-analysis of randomized controlled trials (RCTs), prospective cohort studies, and high-quality national registry studies to compare the outcomes of primary ACL reconstruction with bone-tendon-bone autograft or hamstring autograft. Studies that compared these graft types were identified through a comprehensive search of electronic databases (PubMed, MEDLINE, EMBASE, and the Cochrane Library). Two independent reviewers utilized the Jadad scale for RCT study quality and the Modified Coleman Methodology Score for prospective comparative and registry study quality. The included studies were analyzed for the primary outcome measure of graft rupture with or without revision ACL surgery. In surviving grafts, secondary outcomes of graft laxity were quantified by KT1000/2000™ testing, a positive pivot shift test, and a positive Lachman test. Meta-analysis was performed with Review Manager. A total of 47,613 ACL reconstructions (39,768 bone-tendon-bone and 7845 hamstring) from 14 RCTs, 10 prospective comparative studies, and one high-quality national registry study were included in this meta-analysis. Mean age was 28 years in both groups. Sixty-three percent of patients in the bone-tendon-bone cohort were men versus 57% of patients in the hamstring cohort. Mean followup was 68 ± 55 months. RESULTS Two hundred twelve of 7560 (2.80%) bone-tendon-bone grafts ruptured compared with 1123 of 39,510 (2.84%) in the hamstring group (odds ratio = 0.83, 95% confidence interval, 0.72-0.96; p = 0.01). The number needed to treat analysis found that 235 patients would need to be treated with a bone-tendon-bone graft over a hamstring tendon graft to prevent one graft rupture. Instrumented laxity analysis showed that 22% (318 of 1433) of patients in the bone-tendon-bone group had laxity compared with 18% (869 of 4783) in the hamstring tendon group (odds ratio = 0.86; p = 0.16). Pivot shift analysis showed a positive pivot shift in 19% (291 of 1508) of the bone-tendon-bone group compared with 17% (844 of 5062) in the hamstring group (odds ratio = 0.89; p = 0.51). Lachman testing showed a positive Lachman in 25% (71 of 280) of patients receiving bone-tendon-bone grafts compared with 25% (73 of 288) in the hamstring group (odds ratio = 0.96; p = 0.84). CONCLUSIONS In this meta-analysis of short- to mid-term followup after primary ACL reconstruction, hamstring autografts failed at a higher rate than bone-tendon-bone autografts. However, failure rates were low in each group, the difference observed was small, and we observed few differences between graft types in terms of laxity. Both graft types remain viable options for primary ACL reconstruction, and the difference in failure rate should be one part of a larger conversation with each individual patient about graft selection that should also include potential differences in donor site morbidity, complication rates, and patient-reported outcome measures. Continued prospective collection of patient data will be important going forward as we attempt to further characterize the potential differences in outcomes attributable to graft selection. LEVEL OF EVIDENCE Level III, therapeutic study.
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Affiliation(s)
- Brian T. Samuelsen
- 0000 0004 0459 167Xgrid.66875.3aDepartment of Orthopedic Surgery and Sports Medicine Center, Mayo Clinic and Mayo Foundation, Rochester, MN USA
| | - Kate E. Webster
- 0000 0001 2342 0938grid.1018.8School of Allied Health, La Trobe University, Melbourne, Australia
| | - Nick R. Johnson
- 0000 0004 0459 167Xgrid.66875.3aDepartment of Orthopedic Surgery and Sports Medicine Center, Mayo Clinic and Mayo Foundation, Rochester, MN USA
| | - Timothy E. Hewett
- 0000 0004 0459 167Xgrid.66875.3aDepartment of Orthopedic Surgery and Sports Medicine Center, Mayo Clinic and Mayo Foundation, Rochester, MN USA
| | - Aaron J. Krych
- 0000 0004 0459 167Xgrid.66875.3aDepartment of Orthopedic Surgery and Sports Medicine Center, Mayo Clinic and Mayo Foundation, Rochester, MN USA ,0000 0004 0459 167Xgrid.66875.3aMayo Clinic, 200 First Street SW, Rochester, MN 55905 USA
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Filbay SR, Roos EM, Frobell RB, Roemer F, Ranstam J, Lohmander LS. Delaying ACL reconstruction and treating with exercise therapy alone may alter prognostic factors for 5-year outcome: an exploratory analysis of the KANON trial. Br J Sports Med 2017; 51:1622-1629. [PMID: 28515057 PMCID: PMC5754848 DOI: 10.1136/bjsports-2016-097124] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2017] [Indexed: 12/29/2022]
Abstract
Aim Identify injury-related, patient-reported and treatment-related prognostic factors for 5-year outcomes in acutely ACL-ruptured individuals managed with early reconstruction plus exercise therapy, exercise therapy plus delayed reconstruction or exercise therapy alone. Methods Exploratory analysis of the Knee Anterior Cruciate Ligament, Nonsurgical versus Surgical Treatment (KANON) trial (ISRCTN84752559). Relationships between prognostic factors (baseline cartilage, meniscus and osteochondral damage, baseline extension deficit, baseline patient-reported outcomes, number of rehabilitation visits, graft/contralateral ACL rupture, non-ACL surgery and ACL treatment strategy) and 5-year Knee Injury and Osteoarthritis Outcome Score (KOOS) pain, symptoms, sport/recreation and quality of life (QOL) scores were explored using multivariable linear regression. Estimates were adjusted for sex, age, body mass index, preinjury activity level, education and smoking. Results For all participants (n=118), graft/contralateral ACL rupture, non-ACL surgery and worse baseline 36-item Short-Form Mental Component Scores were associated with worse outcomes. Treatment with exercise therapy alone was a prognostic factor for less knee symptoms compared with early reconstruction plus exercise therapy (regression coefficient 10.1, 95% CI 2.3 to 17.9). Baseline meniscus lesion was associated with worse sport/recreation function (−14.4, 95% CI −27.6 to –1.3) and osteochondral lesions were associated with worse QOL (−12.3, 95% CI −24.3 to –0.4) following early reconstruction plus exercise therapy. In the same group, undergoing additional non-ACL surgery and worse baseline KOOS scores were prognostic for worse outcome on all KOOS subscales. Following delayed reconstruction, baseline meniscus damage was a prognostic factor for less pain (14.3, 95% CI 0.7 to 27.9). Following exercise therapy alone, undergoing non-ACL surgery was prognostic for worse pain. Conclusions Treatment-dependent differences in prognostic factors for 5-year outcomes may support individualised treatment after acute ACL rupture in young active individuals. Trial registration number Current Controlled Trials ISRCTN84752559.
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Affiliation(s)
- Stephanie R Filbay
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Ewa M Roos
- Research Unit for Musculoskeletal Function and Physiotherapy, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Richard B Frobell
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, Lund, Sweden
| | - Frank Roemer
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, Lund, Sweden.,Department of Radiology, University of Erlangen-Nuremberg, Erlangen, Germany.,Quantitative Imaging Center (QIC), Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | | | - L Stefan Lohmander
- Department of Clinical Sciences Lund, Orthopaedics, Lund University, Faculty of Medicine, Lund, Sweden
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Outcome of Patellar Tendon Versus 4-Strand Hamstring Tendon Autografts for Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis of Prospective Randomized Trials. Arthroscopy 2017; 33:450-463. [PMID: 28040335 DOI: 10.1016/j.arthro.2016.09.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 09/13/2016] [Accepted: 09/22/2016] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare clinical outcomes of anterior cruciate ligament (ACL) reconstruction and investigate whether the clinical results of 4-strand hamstring tendon (HT) reconstruction are still inferior to that of the patellar tendon (PT). METHODS We performed a comprehensive systematic review and meta-analysis of the English literature on PubMed, Scopus, Web of Science, and the Cochrane register for papers that compared clinical outcomes of PT versus HT for ACL reconstruction. Outcome measures analyzed included rate of rerupture, KT-1000, International Knee Documentation Committee grade, Lachman, pivot shift, Lysholm score, Tegner Activity Scale, anterior knee pain, and discomfort on kneeling. RESULTS We included 19 studies from an initial 1,168 abstracts for the systematic review, and, eventually, 19 studies were included in the meta-analysis. The study population consisted of a total of 1784 patients. The average follow-up duration was 58.8 months. We found significant differences in favor of the HT technique in the domains of anterior knee pain, kneeling pain, and restriction in the range of active extension ("extension deficit"). We found no differences between the PT and HT technique in terms of rerupture rate. There were no clinically significant differences for the outcomes of Lysholm score and Tegner Activity Scale as well as the KT-1000 side-to-side at maximum manual force. CONCLUSIONS Contemporary 4-strand HT ACL reconstruction is comparable with the PT technique in terms of clinical stability and postoperative functional status across most parameters studied. The HT technique carries lower risk of postoperative complications such as anterior knee pain, kneeling discomfort, and extension deficit. Primary ACL reconstruction using the 4-strand HT technique achieves clinical results that are comparable with the PT technique with significantly less postoperative complications. LEVEL OF EVIDENCE Level I, systemic review and meta-analysis of Level I studies.
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Credibility and quality of meta-analyses addressing graft choice in anterior cruciate ligament reconstruction: a systematic review. Knee Surg Sports Traumatol Arthrosc 2017; 25:538-551. [PMID: 27544274 DOI: 10.1007/s00167-016-4282-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/03/2016] [Indexed: 12/29/2022]
Abstract
PURPOSE This systematic review examined the methodological credibility and quality of reporting of all meta-analyses which have compared bone-patellar tendon-bone (BPTB) versus hamstring tendon (HT) for anterior cruciate ligament (ACL) reconstruction (ACLR). METHODS EMBASE, MEDLINE, and The Cochrane Library were systematically searched, and two reviewers independently assessed eligibility, credibility according to the Users' Guide to medical literature, and completeness of reporting according to the preferred reporting items for systematic review and meta-analyses (PRISMA) checklist. Inter-rater agreement was quantified using Kappa, and we used Pearson's correlation coefficient to evaluate potential associations. RESULTS Seventeen meta-analyses were identified comparing BPTB versus HT for ACLR. The majority of meta-analyses were published in 2011 (5; 29 %), and North America was the most common continent of publication (6; 35 %). The three most commonly reported outcomes were stability (82 %), complications (76 %), and function (return to sport, IKDC score) (71 %). The median number of satisfactorily reported items in the Users' Guide was three out of seven (IQR 2-4). The median number of satisfactorily reported items in PRISMA for the meta-analyses was 20 out of 27 (IQR 19-22). CONCLUSION The credibility of the meta-analyses comparing BPTB versus HT autograft for ACLR although limited is improving with time. Earlier studies had limited methodological rigour; however, the more recent studies have shown promise in improved methodology. The study findings suggest that decisions should be made on a case-to-case basis with coordination of patient factors and preferences as well as surgeon experience on the background of the best available evidence. LEVEL OF EVIDENCE IV.
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Cantin O, Lustig S, Rongieras F, Saragaglia D, Lefèvre N, Graveleau N, Hulet C. Outcome of cartilage at 12years of follow-up after anterior cruciate ligament reconstruction. Orthop Traumatol Surg Res 2016; 102:857-861. [PMID: 27544885 DOI: 10.1016/j.otsr.2016.06.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/05/2016] [Accepted: 06/09/2016] [Indexed: 02/02/2023]
Abstract
INTRODUCTION In cases of chronic anterior laxity, reconstruction of the anterior cruciate ligament (ACL) can slow the development of osteoarthritis. This study was conducted to determine the overall prevalence of osteoarthritis and to identify the risk factors after ACL reconstruction. HYPOTHESIS Meniscus tears, time from injury to surgery, body mass index (BMI), residual laxity, and cartilage lesions influence the progression towards osteoarthritis. MATERIALS AND METHODS This multicenter, retrospective study on the outcome of cruciate ligaments at 12 years of follow-up was conducted within the 2014 SOFCOT Symposium. The cohort included 675 arthroscopic reconstructions of the ACL from January 2002 to December 2003. The clinical evaluation included the objective and subjective IKDC score. Osteoarthritis was analyzed on 589 knee X-rays according to the IKDC classification. The predictive factors of osteoarthritis development studied were age, gender, BMI, time from injury to surgery, activity level, medial or lateral meniscectomy, type of graft, medial or lateral chondropathy, tunnel positioning, and residual laxity. Univariate and multivariate analyses with logistic regression were performed. RESULTS The mean follow-up was 11.9±0.8 years. The subjective IKDC score was 83.7±13. At 12 years, the rate of moderate to severe osteoarthritis l (IKDCC or D) was 19% (16% medial tibiofemoral osteoarthritis, 4% lateral tibiofemoral osteoarthritis, and 2% patellofemoral osteoarthritis). The prognostic factors were age at surgery greater than 34 years (P<0.05), cartilage lesions at surgery (P<0.05), medial or lateral meniscectomy (P<0.05), and residual laxity (P<0.05). CONCLUSIONS This large-scale study identified risk factors for osteoarthritis that should improve the information provided to patients on long-term progression after ACL reconstruction. LEVEL OF EVIDENCE Retrospective cohort study, level IV.
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Affiliation(s)
- O Cantin
- Service de chirurgie orthopédique, centre Albert-Trillat, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69004 Lyon, France
| | - S Lustig
- Service de chirurgie orthopédique, centre Albert-Trillat, hôpital de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69004 Lyon, France.
| | - F Rongieras
- Service de chirurgie orthopédique, hôpital d'instruction des armées Desgenettes, 108, boulevard Pinel, 69003 Lyon, France
| | - D Saragaglia
- Clinique universitaire de chirurgie orthopédique et de traumatologie du sport, hôpital Sud, CHU de Grenoble, avenue de Kimberley, 38130 Échirolles, France
| | - N Lefèvre
- Institut de l'appareil locomoteur Nollet, 75017 Paris, France; Clinique du sport Paris V, 75005 Paris, France
| | - N Graveleau
- Centre de consultation orthopédique et sportive, clinique du sport de Bordeaux-Mérignac, 2, rue Negrevergne, 33700 Mérignac, France
| | - C Hulet
- Département d'orthopédie-traumatologie, Unité Inserm COMETE, UMR U1075, CHU de Caen, avenue Côte-de-Nacre, 14000 Caen, France
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- SoFCOT, 56, rue Boissonade, 75014 Paris, France
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Lack of stability at more than 12 months of follow-up after anterior cruciate ligament reconstruction using all-inside quadruple-stranded semitendinosus graft with adjustable cortical button fixation in both femoral and tibial sides. Orthop Traumatol Surg Res 2016; 102:867-872. [PMID: 27717747 DOI: 10.1016/j.otsr.2016.08.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/25/2016] [Accepted: 08/24/2016] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The use of the semitendinosus tendon alone for anterior cruciate ligament reconstruction keeps the gracilis muscle intact and decreases anterior pain in comparison with the use of the patellar tendon. Recently, Lubowitz described a new all-inside technique with an ST4 tendon fixed with a cortical button in both femoral and tibial sides. We hypothesized that this type of graft with cortical button fixation provides well-controlled residual anterior tibial translation (<3mm). The aim of this study was to assess the results obtained with this technique in terms of laxity and IKDC score at more than 1 year of follow-up. MATERIAL AND METHODS We performed a prospective single-center study to evaluate the results with this procedure with at least 1 year of follow-up. The primary endpoint was the objective IKDC score and side-to-side anterior tibial translation difference. The secondary endpoint was the subjective assessment using the subjective IKDC and Lysholm scores. Tunnel positioning was assessed using the Aglietti criteria. RESULTS Thirty-five patients were included and reviewed with a mean follow-up of 19.7 months. Sixty-three percent of the patients were male and the mean age at the procedure was 28 years. The IKDC score was A or B in 43% of the patients and C or D in 57%; 54% of the patients had a residual side-to-side anterior tibial translation difference less than 3mm and 29% presented significant pivot shift (grade C or D). Five patients underwent revision surgery, including one for rupture of the ACL reconstruction. The meniscal status did not influence postoperative laxity and the IKDC grade. DISCUSSION Our hypothesis was not verified and the postoperative stability of the knee was insufficient. Postoperative side-to-side anterior tibial translation difference remained greater than 3mm for 16 patients and the analysis seems to indicate that the distal cortical fixation of the graft with an adjusted loop is insufficient. LEVEL OF EVIDENCE Prospective study - Level IV.
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Björnsson H, Samuelsson K, Sundemo D, Desai N, Sernert N, Rostgård-Christensen L, Karlsson J, Kartus J. A Randomized Controlled Trial With Mean 16-Year Follow-up Comparing Hamstring and Patellar Tendon Autografts in Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2016; 44:2304-13. [PMID: 27229354 DOI: 10.1177/0363546516646378] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND There is no consensus in the current literature on which surgical options render the best long-term results after anterior cruciate ligament (ACL) reconstruction in terms of clinical outcomes and the development of radiographic osteoarthritis (OA). PURPOSE To investigate the long-term clinical and radiographic results after ACL reconstruction using either a patellar tendon (PT) autograft or a hamstring tendon (HT) autograft. STUDY DESIGN Randomized controlled trial; Level of evidence, 2. METHODS This multicenter study was based on 2 previous randomized cohorts consisting of 193 patients who underwent unilateral primary ACL reconstruction using either a PT autograft or an HT autograft. The index surgical procedure was performed between September 1995 and January 2000. Clinical assessments, including knee laxity measurements, functional outcomes, patient-reported outcomes, and bilateral standing radiographs, were performed at the final follow-up examination. RESULTS At the long-term follow-up, 147 (76%) patients were examined: 61 in the PT group and 86 in the HT group. The mean (±SD) follow-up time was 191.9 ±15.1 months for the HT group and 202.6 ± 10.4 months for the PT group. Knee laxity measurements revealed significantly more patients with a normal pivot-shift test finding in the HT group compared with the PT group (71% vs 51%, respectively; P = .048); however, no significant differences were found in terms of the manual Lachman test or the KT-1000 arthrometer manual maximum test. The patients in the PT group had significantly more difficulty knee walking (P = .049). There were no significant differences between the study groups in terms of patient-reported outcomes or range of motion in the reconstructed knee. In both groups, significantly more signs of radiographic OA were found in the reconstructed knee than in the contralateral healthy knee. However, there were no significant differences between the groups in terms of radiographic OA. CONCLUSION Only minor and mostly insignificant differences were found between the PT and HT autograft groups in this long-term randomized controlled trial. In both groups, significantly more signs of radiographic OA were found in the reconstructed knee than in the contralateral knee.
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Affiliation(s)
- Haukur Björnsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Kristian Samuelsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - David Sundemo
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Neel Desai
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ninni Sernert
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Research and Development, NU-Hospital Group, Trollhättan/Uddevalla, Sweden Department of Orthopaedics, NU-Hospital Group, Trollhättan/Uddevalla, Sweden
| | | | - Jón Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jüri Kartus
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden Department of Research and Development, NU-Hospital Group, Trollhättan/Uddevalla, Sweden Department of Orthopaedics, NU-Hospital Group, Trollhättan/Uddevalla, Sweden
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Konrads C, Reppenhagen S, Plumhoff P, Hoberg M, Rudert M, Barthel T. No significant difference in clinical outcome and knee stability between patellar tendon and semitendinosus tendon in anterior cruciate ligament reconstruction. Arch Orthop Trauma Surg 2016; 136:521-5. [PMID: 26725050 DOI: 10.1007/s00402-015-2386-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Indexed: 12/01/2022]
Abstract
INTRODUCTION ACL reconstruction with either patellar tendon or semitendinosus tendon autografts are standard procedures. Between these two grafts might be differences in stability, morbidity, or long-term changes. This study investigates outcomes of ACL reconstruction with patellar tendon versus semitendinosus tendon autografts. We hypothesize no significant differences in clinical outcome and knee stability between both groups. METHODS In a randomized prospective trial, we operated 62 ACL-deficient patients, 45 males and 17 females with a mean age of 29.8 years (min. 18, max. 44). We reconstructed the ligament using either autologous patellar tendon (n = 31) or semitendinosus tendon (n = 31). After 10 years of follow-up, we investigated 47 patients of the study. For evaluation we used a standard clinical examination including one-leg jump test and KT-1000 instrumental translation measure, visual analog pain scale, IKDC subjective knee form, Lysholm score, Tegner activity scale, and standard X-rays of the knee. RESULTS The data did not show any significant differences between the two groups. Between 5 and 10 years after ACL reconstruction both groups started to develop degenerative arthritic changes, which were detectable in standard radiographs of the knee. At 10-year follow-up mean IKDC for the BPTB group was 1.8 (min. 1, max. 3) and for the ST group it was 2.2 (min 1, max. 4), p = 0.35. Regarding Tegner activity scale after 10 years, the BPTB group showed a mean score of 5.9 (min. 4, max. 9) versus 5.1 (min. 3, max. 7) in the ST group, p = 0.53. For the Lysholm score the BPTB group reached a mean of 92.0 (min. 63, max. 98) and the ST group 91.8 (min. 62, max. 98) points, p = 0.66. There is a tendency for higher donor site morbidity in the BPTB group than in the ST group, p = 0.07. CONCLUSIONS Both, patellar tendon and semitendinosus tendon are safe autografts for ACL reconstruction. Regarding graft selection, individual patient-dependent factors should be considered. ACL reconstruction cannot fully restore pre-injury status of knee joint function in the majority of cases.
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Affiliation(s)
- Christian Konrads
- Department of Orthopaedic Surgery, König-Ludwig-Haus, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Würzburg, Germany.
| | - Stephan Reppenhagen
- Department of Orthopaedic Surgery, König-Ludwig-Haus, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Piet Plumhoff
- Department of Orthopaedic Surgery, König-Ludwig-Haus, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Maik Hoberg
- Department of Orthopaedic Surgery, König-Ludwig-Haus, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Maximilian Rudert
- Department of Orthopaedic Surgery, König-Ludwig-Haus, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Würzburg, Germany
| | - Thomas Barthel
- Department of Orthopaedic Surgery, König-Ludwig-Haus, Julius-Maximilians-University Wuerzburg, Brettreichstr. 11, 97074, Würzburg, Germany
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Sasaki S, Tsuda E, Hiraga Y, Yamamoto Y, Maeda S, Sasaki E, Ishibashi Y. Prospective Randomized Study of Objective and Subjective Clinical Results Between Double-Bundle and Single-Bundle Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2016; 44:855-64. [PMID: 26838934 DOI: 10.1177/0363546515624471] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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 controversy as to whether double-bundle anterior cruciate ligament (ACL) reconstruction with hamstring tendon graft (DB-HT) or single-bundle ACL reconstruction with patellar tendon graft (SB-PT) obtains the best clinical outcomes. PURPOSE To compare the short-term clinical outcomes of DB-HT with those of rectangular-tunnel SB-PT (RTSB-PT) at 2-year follow-up and to identify the factors that affect subjective knee functional score. STUDY DESIGN Randomized controlled trial. Level of evidence, 1. METHODS Sixty-three male patients (mean age, 26.1 years) and 87 female patients (mean age, 25.8 years) were included in this study and were randomly distributed to either the DB-HT (n = 76) or RTSB-PT (n = 74) group. Clinical outcomes (knee flexion range of motion [ROM], heel-height difference, side-to-side difference in anterior laxity, rotational laxity, and Tegner activity score) were compared between the DB-HT and RTSB-PT groups, and examination of factors affecting subjective outcomes (Knee Injury and Osteoarthritis and Outcome Score [KOOS] results) was performed by multiple linear regression analysis. RESULTS Fourteen patients (9 DB-HT, 5 RTSB-PT) had secondary ACL injury within 2 years after primary ACL reconstruction and were excluded from analysis. In the examination of 136 patients at the 24-month follow-up, there was no significant difference between the 2 groups in clinical or subjective outcomes. The normalized knee extensor strength of the RTSB-PT group showed negative surgical technique effect in the early postoperative phase (P = .005), but there was no significant difference between the 2 groups at the 24-month follow-up (P = .114). There was no significant difference in change of normalized knee flexor strength between the 2 groups (P = .493). Age, sex, body mass index (BMI), and presence of meniscus injury were the factors that affected KOOS subscale scores. CONCLUSION In this prospective randomized controlled study, there was no significant difference in the incidence of secondary ACL injury and no difference in objective or subjective outcomes between the DB-HT and RTSB-PT reconstruction at 24-month follow-up. Age, sex, presence of meniscus injury, and BMI affected subjective KOOS subscale scores, while surgical technique did not.
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Affiliation(s)
- Shizuka Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Eiichi Tsuda
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuharu Hiraga
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuji Yamamoto
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shugo Maeda
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Eiji Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuyuki Ishibashi
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Webster KE, Feller JA, Hartnett N, Leigh WB, Richmond AK. Comparison of Patellar Tendon and Hamstring Tendon Anterior Cruciate Ligament Reconstruction: A 15-Year Follow-up of a Randomized Controlled Trial. Am J Sports Med 2016; 44:83-90. [PMID: 26578718 DOI: 10.1177/0363546515611886] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Numerous studies have compared patellar tendon (PT) and hamstring tendon (HS) anterior cruciate ligament (ACL) reconstructions in the short to midterm, but fewer long-term results have been published. HYPOTHESIS There will be no difference in functional outcome between ACL reconstruction performed with PT and HS grafts, but PT grafts will have more donor site morbidity. STUDY DESIGN Randomized controlled trial; Level of evidence, 1. METHODS Sixty-five patients undergoing ACL reconstruction were randomized to receive either a PT graft or a 4-strand HS graft. Early results were reported at 4, 8, 12, 24, and 36 months. Forty-seven patients (22 of 31 PT and 25 of 34 HS) were reviewed at a mean of 15.3 years. RESULTS Four graft ruptures (1 PT, 3 HS) and 6 contralateral ACL injuries (4 PT, 2 HS) occurred in the group that was reviewed. There was no statistically significant difference between the groups for any of the variables measured. There was a similar incidence of anterior knee pain and kneeling pain in both groups. The previously observed increased extension deficit in the PT group at 3 years was not present at 15 years, and there was no significant between-group difference in knee laxity. A higher proportion of patients in the PT group were participating in sport on a weekly basis (73% PT, 48% HS; P = .05). There was no difference in the degree of osteoarthritis between the groups. CONCLUSION This randomized controlled trial showed that HS and PT ACL reconstructions have comparable results at an average 15-year follow-up. Contrary to the study hypothesis, some of the graft differences seen at earlier review were not present at 15 years, and patients with PT grafts were more active in sport participation. Overall, both graft types provided good long-term subjective and objective outcomes.
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Affiliation(s)
- Kate E Webster
- School of Allied Health, La Trobe University, Melbourne, Australia
| | - Julian A Feller
- OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia
| | - Nigel Hartnett
- OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia
| | - Warren B Leigh
- OrthoSport Victoria, Epworth HealthCare, Melbourne, Australia
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Mehran N, Moutzouros VB, Bedi A. A Review of Current Graft Options for Anterior Cruciate Ligament Reconstruction. JBJS Rev 2015; 3:01874474-201511000-00002. [PMID: 27490912 DOI: 10.2106/jbjs.rvw.o.00009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Nima Mehran
- Department of Orthopaedic Surgery, Henry Ford Hospital, 2799 W. Grand Boulevard, Detroit, MI 48202
| | - Vasilios Bill Moutzouros
- Department of Orthopaedic Surgery, Henry Ford Hospital, 2799 W. Grand Boulevard, Detroit, MI 48202
| | - Asheesh Bedi
- Department of Orthopaedic Surgery, University of Michigan, 24 Frank Lloyd Wright Drive, Lobby A, Ann Arbor, MI 48106
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Makhni EC, Padaki AS, Petridis PD, Steinhaus ME, Ahmad CS, Cole BJ, Bach BR. High Variability in Outcome Reporting Patterns in High-Impact ACL Literature. J Bone Joint Surg Am 2015; 97:1529-42. [PMID: 26378269 DOI: 10.2106/jbjs.o.00155] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND ACL (anterior cruciate ligament) reconstruction is one of the most commonly performed and studied procedures in modern sports medicine. A multitude of objective and subjective patient outcome measures exists; however, nonstandardized reporting patterns of these metrics may create challenges in objectively analyzing pooled results from different studies. The goal of this study was to document the variability in outcome reporting patterns in high-impact orthopaedic studies of ACL reconstruction. METHODS All clinical studies pertaining to ACL reconstruction in four high-impact-factor orthopaedic journals over a five-year period were reviewed. Biomechanical, basic science, and imaging studies were excluded, as were studies with fewer than fifty patients, yielding 119 studies for review. Incorporation of various objective and subjective outcomes was noted for each study. RESULTS Substantial variability in reporting of both objective and subjective measures was noted in the study cohort. Although a majority of studies reported instrumented laxity findings, there was substantial variability in the type and method of laxity reporting. Most other objective outcomes, including range of motion, strength, and complications, were reported in <50% of all studies. Return to pre-injury level of activity was infrequently reported (24% of studies), as were patient satisfaction and pain assessment following surgery (8% and 13%, respectively). Of the patient-reported outcomes, the International Knee Documentation Committee (IKDC), Lysholm, and Tegner scores were most often reported (71%, 63%, and 42%, respectively). CONCLUSIONS Substantial variability in outcome reporting patterns exists among high-impact studies of ACL reconstruction. Such variability may create challenges in interpreting results and pooling them across different studies.
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Affiliation(s)
- Eric C Makhni
- Departments of Orthopaedics and Sports Medicine, Rush University Medical Center, 1611 West Harrison, Suite 300, Chicago, IL 60612. E-mail address for E.C. Makhni:
| | - Ajay S Padaki
- Columbia University Medical Center, 622 West 168th Street, PH-1130, New York, NY 10032
| | - Petros D Petridis
- Columbia University Medical Center, 622 West 168th Street, PH-1130, New York, NY 10032
| | | | - Christopher S Ahmad
- Columbia University Medical Center, 622 West 168th Street, PH-1130, New York, NY 10032
| | - Brian J Cole
- Departments of Orthopaedics and Sports Medicine, Rush University Medical Center, 1611 West Harrison, Suite 300, Chicago, IL 60612. E-mail address for E.C. Makhni:
| | - Bernard R Bach
- Departments of Orthopaedics and Sports Medicine, Rush University Medical Center, 1611 West Harrison, Suite 300, Chicago, IL 60612. E-mail address for E.C. Makhni:
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