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Posterior ligament reconstruction

Byung Hoon Lee, Dong Ho Kum, Im Joo Rhyu, Youngjun Kim, Hyunchul Cho, Joon Ho Wang
PURPOSE: To evaluate the clinical advantages of a navigation system developed with an emphasis on attaining an appropriate femoral tunnel length and posterior wall margin with no posterior wall blowout, as well as having accurate tunnel positioning, in anatomical anterior cruciate ligament reconstruction (ACLR). METHODS: Ten freshly frozen human knees were transected at mid-femur and mid-tibia. Each knee specimen underwent arthroscopic single-bundle anterior cruciate ligament reconstruction using the outside-in technique, with two knees by manual ACLR (control group) and another eight knees by only the navigational ACLR without arthroscopic assistance (experimental group)...
October 19, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Steven T Hendrix, Austin M Barrett, Bopha Chrea, William H Replogle, Josie M Hydrick, Gene R Barrett
Is there a correlation between increased posterior-inferior tibial slope angle and noncontact anterior cruciate ligament (ACL) injury? Does increasing the posterior-inferior tibial slope angle increase the risk of bilateral ACL injury? A computerized relational database (Access 2007; Microsoft Inc, Redmond, Washington) was used to conduct a retrospective review of patients undergoing bilateral or unilateral ACL reconstruction surgery or treatment by a single surgeon between 1995 and 2013. Included in the study were patients with bilateral and unilateral ACL injuries and patellofemoral pain syndrome with no associated ACL deficiency...
October 18, 2016: Orthopedics
Guido Wierer, Armin Runer, Peter Gföller, Christian Fink, Christian Hoser
BACKGROUND: Postoperative extension deficits following anterior cruciate ligament (ACL) reconstruction can cause major limitation during daily life. The purpose of this study was to evaluate the efficiency of an all-arthroscopic approach and posterior capsule release for the treatment of persistent knee extension deficits following ACL reconstruction. METHODS: Between 2009 and 2013 a total of 10 patients with knee flexion contractures after ACL reconstruction were assessed following an all-arthroscopic approach and posterior capsulotomy...
October 12, 2016: Knee
John J Elias, Michael J Kelly, Kathryn E Smith, Kenneth A Gall, Jack Farr
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction is performed to prevent recurrent instability, but errors in femoral fixation can elevate graft tension. HYPOTHESIS: Errors related to femoral fixation will overconstrain the patella and increase medial patellofemoral pressures. STUDY DESIGN: Controlled laboratory study. METHODS: Five knees with patellar instability were represented with computational models...
September 2016: Orthopaedic Journal of Sports Medicine
Al-Amin M Kassam, Peter J Schranz, Vipul I Mandalia
Anatomic anterior cruciate ligament reconstruction has been shown to reduce the risk of graft failure and to improve patient-related clinical outcomes. The posterior border of the anterior horn of the lateral meniscus is a useful marker for anatomic tibial tunnel placement. Assessment of a preoperative magnetic resonance imaging scan can allow surgical planning of tibial tunnel placement to allow for anatomic, patient-specific tibial tunnel placement during anatomic anterior cruciate ligament reconstruction...
August 2016: Arthroscopy Techniques
Robert Petretta, Vipul Mandalia
The use of an accessory posteromedial portal for posterior cruciate ligament reconstruction in bicruciate knee ligament reconstruction has often been described. However, the use of a posteromedial portal can be time consuming and has some inherent risks including injury to the saphenous vein or nerve. We describe our bicruciate knee ligament reconstruction using 4 exclusively anterior portals including a high anteromedial, high anterolateral, low anteromedial, and low anterolateral portals. Arthroscopy is performed using a combination of 30° and 70° arthroscopes...
August 2016: Arthroscopy Techniques
Jon O Wright, Nathan W Skelley, Reid P Schur, Ryan M Castile, Spencer P Lake, Robert H Brophy
BACKGROUND: The microstructural organization (collagen fiber alignment) of the posterior cruciate ligament (PCL), which likely corresponds with its functional properties, has only been described qualitatively in the literature, to our knowledge. The goal of this study was to quantify the tensile mechanical and microstructural properties of the PCL and compare these qualities between the anterolateral and posteromedial bundles. METHODS: Twenty-two knee specimens from 13 donors (8 male and 5 female; mean age [and standard deviation] at the time of death, 43...
October 5, 2016: Journal of Bone and Joint Surgery. American Volume
Shinichi Yoshiya
When considering the femoral attachment location for an anterolateral ligament reconstruction, the femoral attachment site should be positioned proximally and posteriorly to the lateral epicondyle to restore the physiologic length change of the native ligament. However, the clinical significance of the anterolateral ligament in patients having anterior cruciate ligament reconstructive surgery remains controversial.
October 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Yukihiro Sanada, Yasunaru Sakuma, Hideki Sasanuma, Atsushi Miki, Takumi Katano, Yuta Hirata, Noriki Okada, Naoya Yamada, Yoshiyuki Ihara, Taizen Urahashi, Naohiro Sata, Yoshikazu Yasuda, Koichi Mizuta
Utilizing the opened round ligament as venous grafts during liver transplantation is useful but controversial, and there are no pathological analyses of this procedure. Herein, we describe the first reported case of a pathological analysis of an opened round ligament used as a venous patch graft in a living donor liver transplantation (LDLT). A 13-year-old female patient with biliary atresia underwent LDLT using a posterior segment graft from her mother. The graft had two hepatic veins (HVs), which included the right HV (RHV; 15 mm) and the inferior RHV (IRHV; 20 mm)...
September 14, 2016: World Journal of Gastroenterology: WJG
Bertrand Semay, Alexandre Rambaud, Rémi Philippot, Pascal Edouard
OBJECTIVE: This study aimed to analyze the evolution of the tibiofemoral anterior laxity during the return to sport after anterior cruciate ligament reconstruction. PATIENTS AND METHODS: Twenty patients (11 women, 9 men) with mean age of 22.4±5.1 years, operated for ACL reconstruction by a hamstring technique, competitors in a pivot-contact sport, were enrolled between September 2014 and March 2016. They were evaluated at 6 (n=20), 9 (n=13) and 12 (n=13) months postoperatively by laximetry to 250N using laximètre GnRB(®) (GenouROB, Laval, France)...
September 2016: Annals of Physical and Rehabilitation Medicine
Laila Mahir, Siham Zahi, Soumia Meftah, Herman Azanmasso, Fatima Lmidmani, Abdellatif El Fatimi
OBJECTIVE: Introduction: the sternoclavicular joint is very stable due to a strong ligamentous system, disjunctions are rare. Their diagnosis is difficult. Plain radiography does not allow a proper analysis and use of CT scans is necessary. They can be life-threatening in their posterior variety due to the proximity of the noble elements of the mediastinum. OBJECTIVE: The aim of this study is to describe the evolution of the sternoclavicular disjunction after functional rehabilitation through 6 observations...
September 2016: Annals of Physical and Rehabilitation Medicine
Naoki Notani, Masashi Miyazaki, Shozo Kanezaki, Toshinobu Ishihara, Masanori Kawano, Hiroshi Tsumura
BACKGROUND: Spinal meningioma is a relatively common tumor among intradural extramedullary spinal tumors. When the locus of the meningioma is located on the ventral side, tumor removal, dura mater resection, and reconstruction via a posterior approach safety become technically difficult. METHODS: Twelve patients, who received surgical treatment for ventral spinal meningioma via a posterior approach, were included. There were three male and nine female patients, with an average age of 66...
September 26, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
Willem A Kernkamp, Samuel K Van de Velde, Ali Hosseini, Tsung-Yuan Tsai, Jing-Sheng Li, Ewoud R A van Arkel, Guoan Li
PURPOSE: To measure the in vivo anterolateral ligament (ALL) length change in healthy knees during step-up and sit-to-stand motions. METHODS: Eighteen healthy knees were imaged using magnetic resonance and dual fluoroscopic imaging techniques during a step-up and sit-to-stand motion. The ALL length change was measured using the shortest three-dimensional wrapping path, with its femoral attachment located slightly anterior-distal (ALL-Claes) or posterior-proximal (ALL-Kennedy) to the fibular collateral ligament attachment...
September 20, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Hirotaka Mutsuzaki, Hiromichi Fujie, Hiromi Nakajima, Makoto Fukagawa, Shunsuke Nomura, Masataka Sakane
BACKGROUND: We previously developed a novel technique using an alternate soaking process that improves tendon-bone healing by hybridizing the tendon graft with calcium phosphate (CaP). However, the effects of the CaP-hybridized tendon graft on anatomic single-bundle anterior cruciate ligament (ACL) reconstruction remain unclear. PURPOSE: To determine the effects of CaP-hybridized tendon grafts compared with untreated tendon grafts 6 months after anatomic single-bundle ACL reconstruction using a goat model...
August 2016: Orthopaedic Journal of Sports Medicine
Clemens Gwinner, Andreas Weiler, Manoussos Roider, Frederik M Schaefer, Tobias M Jung
BACKGROUND: The reported failure rate after posterior cruciate ligament (PCL) reconstruction remains high. Previous studies have shown that the tibial slope (TS) influences sagittal plane laxity. Consequently, alterations of TS might have an effect on postoperative knee stability after PCL reconstruction. HYPOTHESIS: We hypothesized that flattening of TS is associated with increased posterior laxity after PCL reconstruction. STUDY DESIGN: Cohort study; Level of evidence 3...
September 20, 2016: American Journal of Sports Medicine
Jeffrey L Milles, Clayton W Nuelle, Ferris Pfeiffer, James P Stannard, Patrick Smith, Mauricio Kfuri, James L Cook
No abstract text is available yet for this article.
September 16, 2016: Journal of Knee Surgery
Shahrzad Mohammadi Rad, Mahyar Salavati, Ismail Ebrahimi Takamjani, Behnam Akhbari, Shiva Sherafat, Hossein Negahban, Pezhman Lali, Masood Mazaheri
PURPOSE: To compare the effect of dual-tasking on postural stability between patients with anterior cruciate ligament reconstruction (ACL-R) and healthy controls. METHODS: Single-limb postural stability was assessed in 17 athletes with ACL-R and 17 healthy matched athletes while standing on a Biodex Balance System platform in four conditions: stability level of 8 (i.e. more stable support surface) with eyes open; stability level of 8 with eyes closed; stability level of 6 (i...
August 24, 2016: Journal of Sport Rehabilitation
Thomas Tampere, Tom Van Hoof, Michiel Cromheecke, Hans Van der Bracht, Jorge Chahla, Peter Verdonk, Jan Victor
PURPOSE: The purpose of this study is twofold: first, to visualize both the tibial and femoral bony insertion surfaces and second, to describe the anterior cruciate ligament (ACL) geometrically, using novel 3D CT imaging. In addition, new concepts of best-fit cylinder and central axis are introduced and evaluated. METHODS: Eight unpaired knees of embalmed cadavers were used in this study. Following the dissection process, the ACL was injected with a contrast medium for CT imaging...
September 13, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Yuanjun Teng, Laiwei Guo, Meng Wu, Tianen Xu, Lianggong Zhao, Jin Jiang, Xiaoyun Sheng, Lihu Xu, Bo Zhang, Ning Ding, Yayi Xia
BACKGROUND: Consistent reference data used for anatomic posterior cruciate ligament (PCL) reconstruction is not well defined. Quantitative guidelines defining the location of PCL attachment would aid in performing anatomic PCL reconstruction. The purpose was to characterize anatomic parameters of the PCL tibial attachment based on magnetic resonance imaging (MRI) in a large population of adult knees. METHODS: The PCL tibial attachment site was examined in 736 adult knees with an intact PCL using 3...
2016: BMC Musculoskeletal Disorders
Nai-Feng Zhu, Bi-Yu Rui, Yun-Long Zhang, Yun-Feng Chen
BACKGROUND: There has been a trend to reconstruct the coracoclavicular (CC) ligaments anatomically for management of acromioclavicular (AC) joint dislocations. PURPOSE: The aim of this study was to determine the location and orientation of the CC ligaments for anatomic reconstruction of the AC joint. METHODS: The subjects were a total of 40 shoulders from 20 Chinese cadavers. Two K-wires were drilled through the insertion center of the conoid and trapezoid ligaments respectively...
August 27, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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