The role of outpatient needle arthroscopy in the diagnosis and management of musculoskeletal complaints: A systematic review of the Arthrex NanoScope
The aim was to review the literature regarding needle arthroscopy using the Arthrex NanoScope system and evaluate: (1) the diagnostic indications, utility, and efficacy compared to conventional methods, and (2) the therapeutic indications, safety, and reported outcomes. (Source: The Knee)
Source: The Knee - April 25, 2023 Category: Orthopaedics Authors: J. Burt, V. Smith, C.W. Gee, J.V. Clarke, A.J. Hall Tags: Review Source Type: research

Authors ’ response to “The posterolateral dilemma” by Harm Hoekstra & Matthias Krause
We read the Letter to the editor concerning our article on the influence of an articular step-off on biomechanics in posterolateral tibial plateau fractures (TPF) with great interest and thank the authors for their detailed answer and acknowledgment. (Source: The Knee)
Source: The Knee - April 25, 2023 Category: Orthopaedics Authors: Thomas Rosteius, Matthias Koenigshausen, Thomas Armin Schildhauer, Jan Gessmann Source Type: research

Effects of millimeter-wave for preventing joint stiffness in the immobilized knee rat model
To explore the effects and mechanism of millimeter-wave treatment on the development of joint stiffness in the immobilized knee rat model. (Source: The Knee)
Source: The Knee - April 21, 2023 Category: Orthopaedics Authors: Xiao-ping Shui, Feng Ye, Chun-ying Li, Xin Zhang, Min-jia Wang, Bin Li, Ke Chen, Ying-ying Liao Source Type: research

Evaluation of the bone tunnel position and state of healing on second-look arthroscopy after pullout repair of medial meniscus posterior root tear during open-wedge high tibial osteotomy
The aim of the present study was to evaluate the outcome of pullout repair of medial meniscus posterior root tear during open-wedge high tibial osteotomy, including the bone tunnel position and the state of healing on second-look arthroscopy. (Source: The Knee)
Source: The Knee - April 20, 2023 Category: Orthopaedics Authors: Shinya Yanagisawa, Masashi Kimura, Keiichi Hagiwara, Atsuko Ogoshi, Takuya Omodaka, Hiroaki Omae Source Type: research

Comparison of weight-bearing full-length radiography and three-dimensional computed tomography scan-based models to assess knee joint coronal alignment following total knee arthroplasty
Total knee arthroplasty (TKA) is one of the most successful orthopaedic procedures for knee osteoarthritis (OA). Nevertheless, residual postoperative pain [1], knee function [2,3] and patient satisfaction are prevalent concerns among patients with TKA [1 –3], and coronal alignment may affect clinical outcomes [2,4–7]. To ensure stable outcomes following TKA, surgeons should attempt to place the implant within 3° of the target alignment. Alignment accuracy is evaluated via postoperative imaging; a deviation of>3 ° from the target angle is often reported as an outlier, whereas a measurement error of>1 ° from the actua...
Source: The Knee - April 20, 2023 Category: Orthopaedics Authors: Michitaka Kato, Hideki Warashina, Akito Kataoka, Shingo Mitamura Source Type: research

An electronic force sensor accurately detects increased but not decreased soft tissue tension in total knee arthroplasty
Total knee arthroplasty (TKA) is an established surgical procedure for end-stage osteoarthritis of the knee. As TKA has become more popular, revision TKA procedures have been increasing, and postoperative knee instability is gaining attention because it is the third or fourth most common cause of TKA revision (6 –18%) [1–3]. A previous study showed that postoperative instability accounted for 6% of all first revision procedures in 2003, but that this percentage increased to 13% in 2019 [4]. (Source: The Knee)
Source: The Knee - April 19, 2023 Category: Orthopaedics Authors: Shinichi Kuriyama, Kohei Nishitani, Shinichiro Nakamura, Shuichi Matsuda Source Type: research

Quality of long standing radiographs assessment of the patella position
The gold standard for evaluating leg alignment is a long leg standing radiograph (LSR). The research states that a correct LSR should have a patella that is centered and facing forward as well as a fibula head superimposition (FHS) with a tibia that is 1/3 larger than the fibula. The purpose of this study was to determine levels of quality for LSR by quantifying and correlating the patella position and fibular head superimposition. (Source: The Knee)
Source: The Knee - April 15, 2023 Category: Orthopaedics Authors: F. Chen, F. Wolf, Kirsi M. Manz, Julian F ürmetz, Sebastian Gonser, Peter H. Thaller Source Type: research

Correcting for distal femoral asymmetry is necessary to determine postoperative alignment deviations from planned alignment of the femoral component
This study quantified asymmetry in the distal femoral epiphysis. (Source: The Knee)
Source: The Knee - April 11, 2023 Category: Orthopaedics Authors: Alexander J. Nedopil, Andrew M. Hernandez, John M. Boone, Stephen M. Howell, Maury L. Hull Source Type: research

Reevaluating isolated polyethylene revision for instability after total knee arthroplasty
This study aimed to evaluate outcomes after isolated polyethylene exchange for instability in one of the largest cohorts reported to date. (Source: The Knee)
Source: The Knee - April 4, 2023 Category: Orthopaedics Authors: Arpan Patel, Fortune Egbulefu, Richard A. Berger, Tad L. Gerlinger Source Type: research

Clinical presentation and arthroscopic treatment of hypermobile Type III Wrisberg variant of lateral discoid meniscus: Report of nine cases
The aim of the present study was to document a series of patients with meniscal hypermobility due to a Type III Wrisberg variant lateral discoid meniscus, describing their clinical presentation, analyzing their magnetic resonance imaging (MRI) and arthroscopic characteristics, and reporting the outcomes of an all-inside stabilization. (Source: The Knee)
Source: The Knee - April 4, 2023 Category: Orthopaedics Authors: Alberto Grassi, Nicola Pizza, Luca Macchiarola, Stefano Zaffagnini Tags: Case Report Source Type: research

Comparison of the effect of total knee arthroplasty and high tibial osteotomy on coronal pelvic and ankle –hindfoot alignment
Total knee arthroplasty (TKA) and high tibial osteotomy (HTO) are different procedures on the continuous spectrum of osteoarthritic knee treatments. TKA aims for neutral alignment and HTO aims for slight valgus. (Source: The Knee)
Source: The Knee - March 30, 2023 Category: Orthopaedics Authors: Seung Jae Shim, Yong Geun Park, Yong Seuk Lee Source Type: research

The effect of activity on the outcome of cementless mobile bearing unicompartmental knee replacements
Many surgeons consider high activity levels a contraindication to Unicompartmental Knee Replacement (UKR). Cementless fixation is of particular concern given the lack of cement to augment primary stability. We assessed the effect of pre and post-operative activity levels on the outcomes of cementless UKRs. (Source: The Knee)
Source: The Knee - March 30, 2023 Category: Orthopaedics Authors: Hasan Raza Mohammad, Andrew Judge, Christopher Dodd, David Murray Source Type: research

High rate of failure after revision extensor mechanism allograft reconstruction
This study evaluated outcomes in patients that underwent revision EMA reconstruction following a failed EMA. (Source: The Knee)
Source: The Knee - March 30, 2023 Category: Orthopaedics Authors: Matthew T. Weintraub, E. Bailey Terhune, Joseph Serino, Evia Della Valle, Craig J. Della Valle Source Type: research

Mobile bearing orbit on the tibial component in Oxford unicompartmental knee arthroplasty
To evaluate the bearing orbit of the tibial component during extension –flexion motion in Oxford unicompartmental knee arthroplasty. (Source: The Knee)
Source: The Knee - March 29, 2023 Category: Orthopaedics Authors: Yoshihito Suda, Takafumi Hiranaka, Tomoyuki Kamenaga, Takaaki Fujishiro, Koji Okamoto, Tomoyuki Matsumoto Source Type: research

Effects of platelet-rich plasma on subchondral bone marrow edema and biomarkers in synovial fluid of knee osteoarthritis
Many studies have demonstrated that PRP is effective in the treatment of knee osteoarthritis. However, the main impact of PRP for knee osteoarthritis remains unknown. Our findings showed that both PRP and SH intra-articular injection play short-term effect for treating knee osteoarthritis, and the former is superior to that of the latter. PRP can significantly reduce the subchondral bone marrow edema and the level of biomarkers TNF α, IL-6, MCP-1, MMP-1, MMP-3, and MMP-9 in synovial fluid of knee osteoarthritis after intra-articular injection of PRP. (Source: The Knee)
Source: The Knee - March 29, 2023 Category: Orthopaedics Authors: Wanchang Lin, Li Xie, Liang Zhou, Jiapeng Zheng, Wenliang Zhai, Dasheng Lin Source Type: research