Article
Orthopedics
Sandro Hodel, Carlos Torrez, Armando Hoch, Philipp Furnstahl, Lazaros Vlachopoulos, Sandro F. Fucentese
Summary: This study found that high-grade patellofemoral dysplastic knees have increased femoral curvature and sagittal flexion of the trochlea. The measurements of curvature and flexion could be used to quantify sagittal femoral deformity and may be a target for surgical correction.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Medicine, General & Internal
Limin Wu, Quan Chen, Haibo Si, Yuangang Wu, Yi Zeng, Mingyang Li, Yuan Liu, Bin Shen
Summary: This study aimed to evaluate the impact of patellofemoral joint (PFJ) degeneration on patient-reported outcome measures (PROMs) and revision rates after medial unicompartmental knee arthroplasty (UKA). The results showed that slight to moderate degenerative changes in the PFJ, except for the lateral facet, did not compromise PROMs or revision rates. Furthermore, the influence of PFJ degeneration on PROMs or revision rates after medial UKA (regardless of the facet) remains inconclusive.
CHINESE MEDICAL JOURNAL
(2023)
Article
Orthopedics
Rajesh N. Maniar, Adit R. Maniar, Abhinav Mishra, Nishant M. Sanghavi
Summary: This study investigated the association between preimplantation and postimplantation femoral trochlear length measurement and anterior knee pain (AKP) and patello-femoral crepitus (PFCr). The results showed that patients with shorter native femoral trochlea and greater difference in length between implanted and native trochlea had a higher occurrence of AKP.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Medicine, General & Internal
Wonchul Choi, Sang-June Lee, Jongbeom Oh, Hongseok Baek, Jinhyuk Yang, Jaeyeon Shin, Bosung Jung, Soonchul Lee
Summary: The morphology and alignment of the patellofemoral joint vary with age and gender, with significant differences in parameters such as sulcus angle and femoral depth between males and females. Understanding these variations may help in diagnosing patellofemoral pathologies and identifying the risk factors for patellar instability.
Article
Orthopedics
Guanrong Peng, Min Liu, Zhenhua Guan, Yunfei Hou, Qiang Liu, Xiaobo Sun, Xingyang Zhu, Wenjun Feng, Jianchun Zeng, Zhangrong Zhong, Yirong Zeng
Summary: In patients with isolated patellofemoral osteoarthritis (PF-OA), patellofemoral arthroplasty (PFA) showed higher activity levels and better functional recovery in the first two years postoperatively compared to total knee arthroplasty (TKA). There was no significant difference in complications, revision rates, and satisfaction rate between the two procedures.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2021)
Article
Orthopedics
Le Cao, Kai Sun, Haitao Yang, Hanbang Wang, Ran Zeng, Haitao Fan
Summary: Patients with different patellar morphologic types all exhibited improved knee joint function after TKA, but those with Wiberg type III patella were more likely to have poor patellofemoral tracking and anterior knee pain after surgery.
JOURNAL OF ARTHROPLASTY
(2021)
Article
Orthopedics
Hidenori Tanikawa, Mitsunori Tada, Ryo Ogawa, Kengo Harato, Yasuo Niki, Shu Kobayashi, Takeo Nagura
Summary: The amount of patellar osteotomy influences the patellofemoral pressure. Surgeons should avoid increasing patella thickness, since the resulting increased patellofemoral pressure may reduce knee joint function.
BMC MUSCULOSKELETAL DISORDERS
(2021)
Article
Orthopedics
Erin M. Macri, Marienke van Middelkoop, Jurgen Damen, P. Koen Bos, Sita M. A. Bierma-Zeinstra
Summary: This study investigated the association between baseline patellofemoral or tibiofemoral osteoarthritis (OA) and the risk of undergoing future knee arthroplasty, and found that patellofemoral OA is associated with an increased risk of arthroplasty in the future.
BMC MUSCULOSKELETAL DISORDERS
(2022)
Article
Health Care Sciences & Services
Andreas Frodl, Thomas Lange, Markus Siegel, Hans Meine, Elham Taghizadeh, Hagen Schmal, Kaywan Izadpanah
Summary: The purpose of this study was to evaluate the impact of trochlear dysplasia on patellar kinematics in patients suffering from low flexion patellar instability under weight-bearing conditions after isolated MPFL reconstruction. The results showed that patella tilt improved in patients with mild dysplasia after MPFL graft installation, but the MPFL graft alone did not significantly increase cartilage contact area in patients with severe dysplasia.
JOURNAL OF PERSONALIZED MEDICINE
(2022)
Review
Orthopedics
Chengxin Li, Zhizhuo Li, Lijun Shi, Fuqiang Gao, Wei Sun
Summary: The study found that in treating isolated patellofemoral osteoarthritis, second-generation patellofemoral arthroplasty (2G PFA) showed similar results to total knee arthroplasty (TKA) in terms of revision rates, complications, and patient-reported outcome measures (PROMs).
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2021)
Article
Orthopedics
Octavian Andronic, Nader Helmy, Christoph Kellner, David Alexander Graf
Summary: The purpose of this study was to investigate the radiographic factors and their impact on patient-reported outcomes (PROMs) that may lead to progressive lateral patellofemoral osteoarthritis (PFOA) after medial fixed-bearing cemented unicompartmental knee arthroplasty (UKA). A retrospective cohort study of 49 knees with a minimum follow-up of 60 months was conducted. The results showed that a decreased tibial tuberosity to trochlear groove distance (TTTG) was associated with radiographic progression of lateral PFOA, but it did not influence PROMs at the last follow-up.
INTERNATIONAL ORTHOPAEDICS
(2023)
Article
Orthopedics
Daiwei Yao, Imran Akram, Kiriakos Daniilidis, Luc Labey, Bernardo Innocenti, Carsten Tibesku
Summary: This study compared the effectiveness of BKA and TKA in restoring the kinematics of the knee joint, finding that under passive conditions, BKA can achieve similar kinematics to a natural knee joint, but no functional advantage of BKA over TKA was detected under weight-bearing conditions.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2022)
Article
Orthopedics
Wei Lin, Yike Dai, Conglei Dong, Kang Piao, Kuo Hao, Fei Wang
Summary: This study aimed to compare the forgotten joint score (FJS) in patients with isolated patellofemoral osteoarthritis who underwent patellofemoral arthroplasty (PFA) versus total knee arthroplasty (TKA) and to analyze factors predicting FJS after PFA. Results showed that postoperatively, the PFA group had better knee range of motion and Knee Society Score compared to the TKA group. The PFA group also had significantly higher FJS values at 1 and 3 years postoperatively. Older age was positively correlated with FJS, while higher BMI was negatively correlated with FJS in the PFA group.
ORTHOPAEDIC SURGERY
(2021)
Article
Orthopedics
Kyle N. Kunze, Guilherme Palhares, Tyler J. Uppstrom, Paige Hinkley, Morgan Rizy, Andreas H. Gomoll, Beth E. Shubin Stein, Sabrina M. Strickland
Summary: This study aimed to determine the minimal detectable change (MDC) for the international knee documentation committee (IKDC) and Kujala scores one and two years after patellofemoral joint arthroplasty (PFA). Multivariable logistic regression analysis revealed that lower preoperative Kujala and IKDC scores were predictors of achieving the MDC at both time points. These findings can provide assistance to knee surgeons in understanding the patient-specific propensity for MDC achievement and making decisions regarding patient selection for PFA.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Orthopedics
Peter L. Lewis, David G. Campbell, Michelle F. Lorimer, Francisco Requicha, Annette W-Dahl, Otto Robertsson
Summary: This study utilized a large national registry to investigate the factors associated with instability after total knee arthroplasty. The results showed an increasing trend in the proportion of instability cases in recent years, with patient gender, age, and prosthesis type being associated with the revision rate. Polyethylene insert exchange was the most common surgical choice for instability revision, and changes in insert thickness and conformity did not affect the rate of further revision. The rate of second revision was relatively high, with recurrent instability being a major cause. Revision of both femoral and tibial components and the use of constrained components were associated with a lower risk of second revision.
JOURNAL OF ARTHROPLASTY
(2022)
Article
Orthopedics
Jack Zhong, Nathan J. Lee, Ajay Padaki, Connor Crutchfield, Christopher S. Ahmad, David Trofa, Sean Lynch
Summary: This study aimed to evaluate if age is associated with the risk of short-term complications after ACL reconstruction. The results showed that older patients had higher fragility index scores, shorter operative times, and lower use of general anesthesia. Older age was an independent risk factor for VTE, while younger age was associated with prolonged surgeries.
Article
Orthopedics
Ignacio Pasqualini, Michael Mariorenzi, Alison K. Klika, Pedro J. Rullan, Chao Zhang, Trevor G. Murray, Robert M. Molloy, Nicolas S. Piuzzi
Summary: This study aimed to determine the minimal clinically important difference (MCID) and the patient acceptable symptoms state (PASS) threshold for the knee injury and osteoarthritis outcome score (KOOS) pain subscore, KOOS physical short form (PS), and KOOS joint replacement (JR) following medial unicompartmental knee arthroplasty (mUKA). The study identified useful values for the MCID and PASS thresholds at 1 year following medial UKA of KOOS pain, KOOS PS, and KOOS JR scores. These values may be used as targets for surgeons when evaluating PROMS using KOOS to determine whether patients have achieved successful outcomes after their surgical intervention.