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Koh JRD, Loh SYJ. All-inside posterior cruciate ligament reconstruction - A systematic review of current practice. J Orthop 2024; 55:1-10. [PMID: 38646465 PMCID: PMC11026532 DOI: 10.1016/j.jor.2024.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 03/31/2024] [Indexed: 04/23/2024] Open
Abstract
Purpose The All-Inside PCL Reconstruction is a surgical technique which overcomes some of the key challenges faced with traditional PCL Reconstruction, and is becoming more relevant as the rate of PCL reconstruction increases.The purpose of this study is to review the technical practices of the all-inside PCL reconstruction since it was first introduced, with respect to the various key components involved in the surgical technique, to provide more information to the surgeon of the various surgical options available in practice. Materials and methods A systematic review was performed by the authors in January 2023 as per Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines to identify all studies outlining the all-inside surgical technique in the past decade. The predetermined eligibility criteria were applied in the screening of the literature in Pubmed, Cochrane and Google Scholar databases. Results A total of 14 studies were included in the final review, 9 technical studies, 2 case series, 2 book chapters and 1 review. An allograft was the preferred choice in 9 of the 14 studies. The semitendinosus was preferred when an autograft was chosen. Quadruple folding of the graft was the preferred configuration in 11 studies with the graft diameters from 8 to 12 mm and length ranging from 60 to 150 mm. The femur socket length ranged from 15 to 35 mm and the tibia socket length ranged from 20 to 70 mm. All the studies reported the use of at least 3 portals and up to 6 portals was also reported. 13 studies reported the graft docking first into tibia socket followed by the femoral socket. 7 studies reported the graft entry via the AM portal and 6 studies used a lateral portal. 9 studies used augmentation such as suture anchors (6 studies) and suture tape (3 studies). The 30° and 70° arthroscopic lenses were used alternatingly in 8 studies and fluoroscopy was utilized in 10 studies. Conclusion The current literature review of all-inside PCL reconstruction consisted mainly technical studies and more clinical outcomes studies are needed to determine its efficacy. It observed a trend to use an allograft, at least 3 portals and docking the graft in the tibia socket first. There is no obvious preference of portal for graft entry.
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Zhang H, Wang J, Gao Y, Zheng P, Gong L. Suture Tape Augmentation Improves Posterior Stability After Isolated Posterior Cruciate Ligament Reconstruction Using Hamstring Tendon Autograft With Single-Bundle Transtibial Technique. Arthroscopy 2024; 40:2045-2054. [PMID: 38142869 DOI: 10.1016/j.arthro.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 12/26/2023]
Abstract
PURPOSE To assess whether posterior cruciate ligament reconstruction (PCLR) with suture tape augmentation can yield more stability after isolated PCLR. METHODS A prospective database was retrospectively reviewed to identify patients who underwent primary isolated PCLR (control group) or isolated PCLR with suture tape augmentation (study group) from January 2016 to September 2020. We analyzed subjective International Knee Documentation Committee (IKDC), Lysholm, and Tegner knee scores; posterior drawer test findings; posterior stress radiographs; and return-to-sports activity rates. The minimal clinically important difference (MCID) was used to evaluate clinical relevance (subjective IKDC, Lysholm, and Tegner scores). RESULTS A total of 59 patients were included in this analysis (28 in control group and 31 in study group). The average length of follow-up was similar between the study and control groups (48.6 months vs 47.9 months, P = .800). Knee function was significantly improved in the study group in terms of subjective IKDC scores (85.1 ± 6.4 in study group vs 79.8 ± 6.4 in control group, P = .002), Lysholm scores (86.3 ± 7.4 vs 80.8 ± 7.4, P = .005), and Tegner scores (7.0 ± 1.4 vs 5.6 ± 1.7, P = .006). However, the differences between the control and study groups were less than the MCID for the subjective IKDC score and Lysholm score. In the control and study groups, 21.4% of patients (6 of 28) and 48.4% of patients (15 of 31), respectively, returned to their preinjury sports activity levels (P = .031). At last follow-up, the mean side-to-side difference in posterior laxity was significantly improved in the study group compared with the control group (1.52 ± 0.70 mm in study group vs 3.17 ± 2.01 mm in control group, P < .01). CONCLUSIONS Primary isolated PCLR with suture tape augmentation provides better posterior stability than PCLR without suture tape augmentation at a minimum of 2 years' follow-up. No differences between the groups were observed in the percentage of patients who met or exceeded the MCID for the subjective IKDC and Lysholm scores. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
- Hangzhou Zhang
- Department of Orthopedics, Joint Surgery and Sports Medicine, First Affiliated Hospital of China Medical University, Shenyang Sports Medicine Clinical Medical Research Center, Shenyang, China.
| | - Jian Wang
- Department of Joint Surgery and Sports Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yuzhong Gao
- Department of Joint Surgery and Sports Medicine, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Peng Zheng
- Department of Orthopedics, Joint Surgery and Sports Medicine, Fushun Central Hospital, Fushun, China
| | - Lianhai Gong
- Department of Orthopedics, Joint Surgery and Sports Medicine, Hospital Benxi Iron and Steel General Hospital, Benxi, China
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Xiong B, Yu Y, Xie B, Wang G, Yang X, Liu J, Gu Z, Li Y. Clinical efficacy and kinematic analysis of Chinese knotting technique-assisted posterior cruciate ligament reconstruction: A retrospective analysis. Medicine (Baltimore) 2024; 103:e37840. [PMID: 38669412 PMCID: PMC11049759 DOI: 10.1097/md.0000000000037840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
To investigate the clinical efficacy and knee joint kinematic changes of posterior cruciate ligament (PCL) reconstruction assisted by Chinese knotting technique (CKT). A retrospective analysis was conducted on 88 cases of PCL reconstructive surgery admitted between September 2016 and September 2020. All patients were operated on by the same senior doctor and his team. The patients were divided into 2 groups according to whether the CKT was applied, with 44 cases in each group. Both groups received active rehabilitation treatment after surgery. All patients were followed up for more than 2 years. International knee documentation committee, hospital for special surgery (HSS), and Lysholm scores were used to evaluate the clinical efficacy of the 2 methods at 3, 12, and 24 months after surgery. The motion cycle and kinematic indices of the knee joint were measured by the Opti_Knee three-dimensional motion measurement system before surgery and at 3, 12, and 24 months after surgery. A secondary arthroscopic examination was performed at 12 months after surgery, MAS score was used to evaluate the secondary endoscopic examination of PCL. All the patients had wound healing in stage I without infection. International Knee in both sets Documentation Committee scores, HSS scores and Lysholm scores were gradually improved at all time points (P < .05); compared with the traditional group, the HSS score was higher in the reduction group 12 months after surgery (P < .05), but there was no significant difference at 24 months after surgery. 12 months and 24 months after 3 dimensional motion measurement system using Opti_Knee showed a reduction group before and after displacement and displacement of upper and lower range than the traditional group (P < 0. 05). One year after surgery, the good and good rate of MAS score reduction group was higher than traditional group. CKT assisted PCL reconstruction can improve the subjective function score of the affected knee joint and the results of secondary microscopy. Satisfactory knee kinematic function can be obtained in the early stage, and the anteroposteric relaxation of the knee joint can be reduced.
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Affiliation(s)
- Bohan Xiong
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yang Yu
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Bing Xie
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Guoliang Wang
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xianguang Yang
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Jinrui Liu
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Ziming Gu
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yanlin Li
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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Root C, Braman M, Srinivas M, Ringenberg J, Long R, Morey T, Vopat M, Vopat B. Suture Tape Augmentation of Posterior Cruciate Ligament Reconstruction Shows Improved Biomechanical Stability With Equivalent Outcome and Complication Rates: A Scoping Review. Arthroscopy 2024:S0749-8063(24)00246-9. [PMID: 38537724 DOI: 10.1016/j.arthro.2024.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/04/2024] [Accepted: 03/12/2024] [Indexed: 07/14/2024]
Abstract
PURPOSE To assess the current literature surrounding suture tape augmentation (STA) of posterior cruciate ligament reconstruction (PCLR) with additional evaluation of PCLR+STA in clinical practice. METHODS A systematic search of 3 databases (PubMed, EMBASE, and Web of Science Core Collection) was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and was completed in April 2023 to identify studies related to PCLR+STA. Surgical technique, animal, biomechanical, and clinical studies were included for review with quality appraisal conducted according to study design. RESULTS A total of 380 articles were identified in the search, 6 of which met inclusion criteria. Biomechanical studies showed a significant reduction in posterior tibial translation with STA of PCLR in multiple studies. STA was found to decrease total elongation by 45% to 58% in multiple studies; increased load to failure was seen with STA as well in 1 study. Clinical studies showed equivalent or improved patient-reported outcomes with STA of PCLR compared with PCLR alone. CONCLUSIONS Biomechanical studies offer evidence showing the beneficial load-sharing properties of STA such as increased strength and ultimate load with decreased elongation of the graft, especially with larger forces. Clinical evidence illustrates improved or equivalent patient-reported outcomes to standard PCLR with no difference in complication rate. CLINICAL RELEVANCE STA of PCLR offers an opportunity to improve initial graft stability during the early healing phase through load sharing between the augmentation and the graft.
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Affiliation(s)
- Cooper Root
- University of Kansas School of Medicine, Kansas City, Kansas, U.S.A..
| | - Michael Braman
- University of Kansas School of Medicine, Kansas City, Kansas, U.S.A
| | - Mukund Srinivas
- Department of Orthopaedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
| | - Jonathan Ringenberg
- Department of Orthopaedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
| | - Rachel Long
- Department of Orthopaedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
| | - Tucker Morey
- Department of Orthopaedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
| | - Matthew Vopat
- Department of Orthopaedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
| | - Bryan Vopat
- Department of Orthopaedic Surgery, University of Kansas Medical Center, Kansas City, Kansas, U.S.A
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Fathi A, Thompson AA, Bolia IK, Mayfield CK, Korber SS, Iyer A, Hatch III GF. Patient Reported Clinical Outcomes Following PCL Suture Augmentation in Patients with Multiligamentous Knee Injury: A Retrospective Observational Study. Orthop Res Rev 2024; 16:67-74. [PMID: 38380086 PMCID: PMC10878190 DOI: 10.2147/orr.s425781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 02/08/2024] [Indexed: 02/22/2024] Open
Abstract
Purpose To compare the patient-reported outcomes between patients with posterior cruciate ligament (PCL) reconstruction or repair alone versus PCL reconstruction or repair with internal bracing (IB) in the context of multi-ligament knee injuries (MLKI). Methods All patients who underwent surgical management of MLKI at two institutions between 2006 and 2020 were retrospectively identified and offered participation in the study. Patient reported outcomes were measured via three instruments: Lysholm Knee score, Multiligament Quality of Life (ML-QOL), and the Patient-Reported Outcomes Measurement Information System (PROMIS) computer adaptive testing (CAT). The postoperative outcomes and reoperation rates were compared between the internal bracing and non-internal bracing groups. Results Fifty-two patients were analyzed; 34 were included in the IB group (17.6% female; age 33.1 ±1.60 years), and 18 were included in the non-IB group (11.1% female; age 34.1 ±3.72 years). Mean follow-up time of the entire cohort was 1.44 ± 0.22 years (IB: 1.21 ± 0.18; non-IB: 2.1 ±0.65). There were no significant differences between PROMIS CAT [PROMIS Pain (54.4 ±1.78 vs 51.7 ±1.70, p=0.319), Physical Function (44.3 ±2.27 vs 47.9 ±1.52, p=0.294), Mobility (44.0 ±1.71 vs 46.1 ±2.10, p=0.463)], ML-QOL [ML-QOL Physical Impairment (40.7 ±4.21 vs 41.7±5.10, p=0.884), Emotional Impairment (49.2 ±4.88 vs 44.7±5.87, p=0.579), Activity Limitation (43.5 ±4.56 vs 31.5±3.62, p=0.087), Societal Involvement (44.9 ±4.96 vs 37.5 ±5.30, p=0.345)] and Lysholm knee score (61.8 ±4.55 vs 61.0 ±4.95, p=0.916) postoperatively compared to the non-IB group. Conclusion In this group of patients, function and patient-reported outcomes between patients treated with PCL reconstruction and repair without internal brace versus those with additional internal brace augmentation were not significantly different. Further research encompassing a larger patient sample is necessary to investigate the efficacy of the internal brace for PCL injury in the context of MLKI injuries.
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Affiliation(s)
- Amir Fathi
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
| | - Ashley A Thompson
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
| | - Ioanna K Bolia
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
| | - Cory K Mayfield
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
| | - Shane S Korber
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
| | - Avinash Iyer
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
| | - George F Hatch III
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, USA
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Niu Y, Chen Z, Jin L, Zheng Y, Zhang Z, Wang F, Zhang Z, Ma J, Men X, Dong J. A modified anatomical posterior cruciate ligament reconstruction technique using the posterior septum and posterior capsule as landmarks to position the low tibial tunnel. BMC Musculoskelet Disord 2024; 25:73. [PMID: 38238705 PMCID: PMC10795373 DOI: 10.1186/s12891-024-07176-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/05/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Lowering the exit position of the tibial tunnel can improve the clinical efficacy of posterior cruciate ligament (PCL) reconstruction, however, there is no unified positioning standard. This study aimed to use novel soft tissue landmarks to create a low tunnel. METHODS A total of 14 human cadaveric knees and 12 patients with PCL injury were included in this study. Firstly, we observed the anatomical position between the PCL, posterior septum, and other tissue, and evaluated the relationship between the center of the low tibial tunnel (SP tunnel) and posterior septum and distal reflection of posterior capsule, and using computed tomography (CT) to evaluate distance between the center of the SP tunnel with bony landmarks. Then, evaluated the blood vessels content in the posterior septum with HE staining. Finally, observed the posterior septum and distal reflection of the posterior capsule under arthroscopy to explore the clinical feasibility of creating a low tibial tunnel, and assessed the risk of surgery by using ultrasound to detect the distance between the popliteal artery and the posterior edge of tibial plateau bone cortex. RESULTS In all 14 cadaveric specimens, the PCL tibial insertions were located completely within the posterior medial compartment of the knee. The distance between the center of the SP tunnel and the the articular surface of tibial plateau was 9.4 ± 0.4 mm. All SP tunnels retained an intact posterior wall, which was 1.6 ± 0.3 mm from the distal reflection of the posterior capsule. The distances between the center of the SP tunnel and the the articular surface of tibial plateau, the champagne glass drop-off were 9.2 ± 0.4 mm (ICC: 0.932, 95%CI 0.806-0.978) and 1.5 ± 0.2 mm (ICC:0.925, 95%CI 0.788-0.975) in CT image. Compared with the posterior capsule, the posterior septum contained more vascular structures. Last, all 12 patients successfully established low tibial tunnels under arthroscopy, and the distance between the posterior edge of tibial plateau bone cortex and the popliteal artery was 7.8 ± 0.3, 9.4 ± 0.4 and 7.4 ± 0.3 mm at 30°, 60° and 90° flexion angels after filling with water and supporting with shaver in posterior-medial compartment of knee joint. CONCLUSIONS A modified low tibial tunnel could be established in the PCL anatomical footprint by using the posterior septum and posterior capsule as landmarks.
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Affiliation(s)
- Yingzhen Niu
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Zhen Chen
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Lingpeng Jin
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Yi Zheng
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Zhuangdai Zhang
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Fei Wang
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Zhenfeng Zhang
- Department of Orthopedics, Tiemenguan People's Hospital, Tiemenguan, China
| | - Jun Ma
- Department of Hebei Medical University, Shijiazhaung, China
| | - Xiaoqian Men
- Department of Ultrasound, Hebei Medical University Third Hospital, Shijiazhaung, China
| | - Jiangtao Dong
- Department of Joint Surgery, Hebei Medical University Third Hospital, Shijiazhaung, China.
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Loeb AE, Ithurburn MP, Kidwell-Chandler A, Atkinson A, Cain EL. Technique and Outcomes of Posterior Cruciate Ligament Repair With Augmentation. Orthop J Sports Med 2024; 12:23259671231213988. [PMID: 38264412 PMCID: PMC10804929 DOI: 10.1177/23259671231213988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 06/19/2023] [Indexed: 01/25/2024] Open
Abstract
Background Posterior cruciate ligament (PCL) injuries to the knee are uncommon, and ideal surgical management of these injuries is unclear. Current surgical techniques include PCL reconstruction with remnant debridement, remnant-preserving techniques, and primary PCL repair. Augmentation of PCL repairs and reconstructions has been proposed to protect repairs or grafts in the postoperative period. Purpose To describe PCL repair with the hamstring autograft augmentation technique and examine our preliminary midterm outcomes from a sequential cohort of patients. Study Design Case series; Level of evidence, 4. Methods The authors identified patients at their institution who underwent remnant-preserving primary PCL repair with hamstring autograft augmentation for both isolated tears and tears associated with multiligament knee injury (MLKI). Patient-reported outcomes were evaluated at a minimum 2-year follow-up using the International Knee Documentation Committee (IKDC) subjective knee form, the 12-item Short Form Survey, and a custom return-to-play questionnaire. Patient-reported outcomes data were summarized, and the predictors of outcomes from the descriptive data and clinical measures were further examined. Results A total of 23 patients with a mean follow-up of 5.3 years met the inclusion criteria. Of these patients, 87% were associated with MLKI. The mean IKDC score was 87.7. Approximately 83% of patients were able to successfully return to their sport or occupation. Among 19 athletes, only 2 reported being unable to return to their preinjury level of sport because of limitations from their PCL surgery. Patient-reported outcome scores and return to sport or occupation did not have a statistically significant association with age, sex, body mass index, time from injury to surgery, or follow-up time. Conclusion Outcomes of our cohort with remnant-preserving primary PCL repairs with hamstring autograft augmentation demonstrated comparable clinical outcomes to previously published PCL data. The advantages of remnant preservation, primary repair, and augmentation with an independent hamstring autograft reconstruction are combined within this technique.
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Affiliation(s)
- Alexander E. Loeb
- The American Sports Medicine Institute, Birmingham, Alabama, USA
- North Florida Orthopaedics, Tallahassee, Florida, USA
| | - Matthew P. Ithurburn
- The American Sports Medicine Institute, Birmingham, Alabama, USA
- Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Andrew Atkinson
- The American Sports Medicine Institute, Birmingham, Alabama, USA
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
| | - E. Lyle Cain
- The American Sports Medicine Institute, Birmingham, Alabama, USA
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
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Thompson AA, Bolia IK, Fathi A, Dobitsch A, Cruz CA, Grewal R, Weber AE, Petrigliano FA, Hatch III GF. Tissue Augmentation Techniques in the Management of Ligamentous Knee Injuries. Orthop Res Rev 2023; 15:215-223. [PMID: 38028655 PMCID: PMC10657762 DOI: 10.2147/orr.s385817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023] Open
Abstract
Despite early reports of high failure rates in knee ligament repair techniques resulting in favor of reconstruction, newer advances in surgical technology have shifted the attention back to repair with the addition of various tissue augmentation techniques. Ligament repair preserves proprioceptors in the native ligament and avoids autograft tendon harvest, minimizing the complications associated with donor site ruptures in reconstruction techniques. Tissue augmentation has been successfully used in knee ligamentous and tendon repair procedures, as well as in some upper extremity procedures. This study provides a clinical update on the surgical techniques, biomechanics, and outcomes with the application of various tissue augmentation techniques in the ligaments surrounding the knee joint.
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Affiliation(s)
- Ashley A Thompson
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - Ioanna K Bolia
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - Amir Fathi
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - Andrew Dobitsch
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - Christian A Cruz
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - Rajvarun Grewal
- California Health Sciences University, Clovis, CA, 93612, USA
| | - Alexander E Weber
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - Frank A Petrigliano
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
| | - George F Hatch III
- USC Epstein Family Center for Sports Medicine at Keck Medicine of USC, Los Angeles, CA, 90033, USA
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Guo J, Qi C, Zhang D, Yang G, Wang C, Yang P, Wang B. Safe femoral tunnel drilling angles avoid injury to the medial and posteromedial femoral anatomic structures during single-bundle posterior cruciate ligament reconstruction with the inside-out technique. Knee Surg Sports Traumatol Arthrosc 2023:10.1007/s00167-023-07412-0. [PMID: 37039872 DOI: 10.1007/s00167-023-07412-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 04/03/2023] [Indexed: 04/12/2023]
Abstract
PURPOSE To investigate the relationship between the medial and posteromedial femoral anatomic structures and the femoral tunnel exit produced by different tunnel orientations when creating the femoral tunnel for posterior cruciate ligament reconstruction (PCLR) using the inside-out (IO) technique and to estimate safe tunnel orientations to minimize the risk of iatrogenic injury to these structures. METHODS Eleven cadaveric knees were used. The medial and posteromedial aspects of each knee joint were dissected to reveal the "safe zone," which is a bony area that avoids the distribution or attachment of at-risk structures (MCL, PMC structures, and articular cartilage), while remaining 10 mm away from the articular cartilage. The hypothesis of this study was that by creating the femoral tunnel at specific angles using the IO technique, the tunnel outlet would be as close to the safe zone as possible, protecting the at-risk structures from damage. Femoral tunnels were drilled at 20 different angle combinations on each specimen: 0°, 15°, 30°, 45°, and 60° relative to a line parallel to the transepicondylar axis in the axial plane, as well as 15°, 30°, 45°, and 60° relative to a line parallel to the femoral axis in the coronal plane. The positional relationship between each tunnel exit and the safe zone was recorded, and the shortest distance between the exit center and the safe zone boundary was measured. RESULTS The risk of iatrogenic injury differed depending on the drilling orientation (χ2 = 168.880, P < 0.001). Femoral drilling angle combinations of 45/45°, 45/60°, 60/30°, 60/45°, and 60/60° (axial/coronal) were considered relatively safer than other orientations (P < 0.05). The shortest distance between the tunnel exit and the safe zone boundary was negatively correlated with the angle in the axial plane (P < 0.001, r = - 0.810). CONCLUSIONS When creating the IO femoral tunnel for single-bundle PCL reconstruction, angle combinations of 45/45°, 45/60°, 60/30°, 60/45°, and 60/60° (axial/oblique coronal) could be utilized to prevent at-risk structures from being damaged. The drilling angles and the safe zone can be employed to optimize the femoral tunnel in PCLR.
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Affiliation(s)
- Jia Guo
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Chao Qi
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China.
| | - Dongfang Zhang
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Guodong Yang
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Chen Wang
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Pu Yang
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Bin Wang
- Department of Sports Medicine, the Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
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