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McQuivey KS, Braithwaite C, Pollock JR, Moore ML, Brinkman JC, Haglin J, Austin R, Spangehl MJ, Bingham JS. Patellar Resurfacing Is Not a Risk Factor for Postoperative Patella Baja in Total Knee Arthroplasty. Arthroplast Today 2024; 28:101411. [PMID: 38983940 PMCID: PMC11231528 DOI: 10.1016/j.artd.2024.101411] [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: 01/22/2024] [Revised: 03/25/2024] [Accepted: 04/28/2024] [Indexed: 07/11/2024] Open
Abstract
Background Patella baja is a known complication of total knee arthroplasty (TKA). There is a limited understanding of the association between patellar resurfacing and the incidence of patella baja. We aimed to compare rates of patella baja between unresurfaced and resurfaced patellas in patients undergoing TKA. Methods A retrospective review of patients who underwent TKA between October 2009 and January 2020 was performed. Patients were included if they had at least one preoperative radiograph and a 1-year follow-up radiograph. Blackburne-Peel index (BPI) and Insall-Salvati ratios (ISRs) were measured on preoperative and 1-year postoperative radiographs and were used to define patella baja vs pseudopatella baja. Statistical analysis was performed using a linear model analysis of variance and the Fisher's exact test. Results Three hundred eighteen TKAs were included, with 176 being resurfaced and 142 unresurfaced patellas. Of the resurfaced group, 4% (7/176) had true patella baja, compared to 5.6% (8/142) of the unresurfaced patellas. Of the resurfaced patellas, 8% (14/176) had pseudopatella baja, compared to 7% (10/142) in the unresurfaced group. Patellar resurfacing was not associated with a higher incidence of patella baja (P = .60) or pseudopatella baja (P = .83). Lower preoperative ISRs (P = .04) and BPIs (0.03) were highly predictive of a higher incidence of patella baja post-TKA. Conclusions Patellar resurfacing in TKA is not associated with a higher incidence of patella baja in TKA when compared to unresurfaced patellas. Lower preoperative ISRs and BPIs are highly predictive of a higher incidence of postoperative patella baja.
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Affiliation(s)
- Kade S. McQuivey
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Collin Braithwaite
- Oakland University William Beaumont School of Medicine, Rochester Hills, MI, USA
| | | | - M. Lane Moore
- Mayo Clinic Alix School of Medicine, Scottsdale, AZ, USA
| | | | - Jack Haglin
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Roman Austin
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Mark J. Spangehl
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Joshua S. Bingham
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, AZ, USA
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Zhang C, Zhang Z, Lin Y, Xin Y, Li H, Lin Y, Huang Y, Yang Y, Bai G, Huang Z, Fang X, Li W, Zhang W. A Novel Infrapatellar Fat Pad Preservation Technique in Total Knee Arthroplasty Reduced Postoperative Pain and Wound Complications. Orthop Surg 2024. [PMID: 38894546 DOI: 10.1111/os.14137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/18/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
OBJECTIVE The management of the infrapatellar fat pad (IPFP) during total knee arthroplasty (TKA) remains controversial. This study aimed to evaluate a novel IPFP preservation technique-"the medially pedicled IPFP flap"-for reducing postoperative pain, wound complications, and improving functional recovery after TKA. METHODS A retrospective analysis was conducted on TKA cases at our institution from 2018 to 2021, including those with IPFP preservation (medially pedicled flap) versus IPFP complete resection. Patient demographics, perioperative parameters (blood loss, operative time, length of hospital stay, visual analogue scale [VAS] score, white cell count [WBC], C-reactive protein [CRP], erythrocyte sedimentation rate [ESR], and wound oozing), and postoperative follow-up data (VAS, Knee Society [KSS], or Knee Society functional assessment [KSFA] scores) were compared between groups. Independent sample t-tests were used to compare continuous data and chi-squared tests were used to compare categorical data between groups. RESULTS Six hundred thirty patients were included, with 278 in the medial pedicled IPFP flap group (preservation group) and 352 in the IPFP resection group (resection group). The operative time was significantly shorter in the preservation versus resection group (125.5 ± 23.2 vs 130.3 ± 28.7 mins, p = 0.03), as was the length of hospital stay (8.4 ± 2.7 vs 9.2 ± 2.3 days, p < 0.01). Regarding pain, the preservation group had significantly lower VAS scores on postoperative day 2 (2.0 ± 0.8 vs 2.4 ± 1.2, p < 0.001) and day 3 (1.5 ± 0.5 vs 1.8 ± 1.0, p < 0.001). CRP and ESR levels on postoperative day 5 were also significantly lower in the preservation group. Wound oozing rates were significantly lower in the preservation versus resection group (0.7% vs 2.8%, p = 0.04). No significant differences existed in VAS, KSS, or KSFA scores at the last follow-up. CONCLUSION The novel IPFP preservation technique significantly improved surgical exposure, shortened operative time and length of hospital stay. It also reduced wound pain and oozing compared to IPFP resection.
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Affiliation(s)
- Chaofan Zhang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Zeyu Zhang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Yunzhi Lin
- Department of Stomatology, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Stomatology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yishan Xin
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Hongyan Li
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Yiming Lin
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Ying Huang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Ye Yang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Guochang Bai
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Zida Huang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Xinyu Fang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Wenbo Li
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
| | - Wenming Zhang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Orthopaedic Bone and Joint Disease and Sports Rehabilitation Clinical Medical Research Center, Fuzhou, China
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Karimov M, Madrakhimov S. Transillumination method in total knee arthroplasty: new approach with old tools. INTERNATIONAL ORTHOPAEDICS 2024; 48:449-454. [PMID: 37700200 PMCID: PMC10799811 DOI: 10.1007/s00264-023-05977-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/05/2023] [Indexed: 09/14/2023]
Abstract
PURPOSE In this study, we evaluated the possibility of precise intraoperative localization of the lateral genicular arteries by an orthopaedic surgeon using the transillumination method. METHODS Twelve patients underwent cemented TKA with patella-friendly Zimmer Biomet NexGen Legacy Posterior Stabilized prostheses (without patellar resurfacing), seven right knees and five left knees. The mean age of patients in the study group was 66.636 ± 7.003 years. The minimal follow-up period was 13 months (mean-16.363 ± 2.5 months). Functional outcomes were assessed using Knee Society and a specific patellar questionnaire-Kujala Score. Intraoperative detection of insufficient patellar stability and/or patellar maltracking was based on the no-thumb technique. In pre- and postoperative period X-ray investigation, standard standing X-ray and Merchant view were used to evaluate implant position and patellofemoral congruency. RESULTS In this study, ten out of twelve knee joints (83.3%) had at least one artery visible by the proposed method in the lateral parapatellar area. Five out of ten knee joints had more than one artery that could be visualized and identified as an arterial vessel. Postoperative Knee Society Score showed significant improvement from a mean 51.181 ± 3.868 to a mean 88.727 ± 3.663. Mean hospital length of stay is 8.545 ± 1.863 days. X-ray assessment using standard anteroposterior, lateral, and Merchant skyline views showed appropriate implant positioning and patellofemoral congruency. The mean Kujala Score in the postoperative period (3 and 6 months) was 67.3 ± 6.75 and 75.6 ± 6.42, respectively. CONCLUSIONS Using the proposed transillumination method can help preserve the lateral blood supply to the patella and to avoid devascularized patella-related complications. TRIAL REGISTRATION Retrospectively registered on 5 of May 2023, Registration number - 3/3-1757.
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Affiliation(s)
- Murodulla Karimov
- Department of Traumatology and Orthopedics, Tashkent Medical Academy, Tashkent, Uzbekistan
| | - Sarvar Madrakhimov
- Department of Traumatology and Orthopedics, Tashkent Medical Academy, Tashkent, Uzbekistan.
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Qu Z, Koga H, Tsuji K, Tang G, Yang Y, Yoshihara A, Katakura M, Katagiri H, Miyatake K, Nakamura T, Sekiya I, Nakagawa Y. Hyaluronic acid sheet transplantation attenuates infrapatellar fat pad fibrosis and pain in a rat arthritis model. J Orthop Res 2023; 41:2442-2454. [PMID: 37087680 DOI: 10.1002/jor.25580] [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: 10/15/2022] [Revised: 03/02/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023]
Abstract
Fibrosis of the infrapatellar fat pad (IFP) occurs after knee joint surgery or during knee osteoarthritis (KOA) and causes persistent pain and limited mobility. Previous studies demonstrated that treating IFP fibrosis alleviated pain in animal models. In this study, we examined the effects of hyaluronic acid (HA) sheet transplantation on IFP fibrosis and articular cartilage degeneration in a monoiodoacetic acid (MIA) rat arthritis model (95 male rats). Rats received bilateral intra-articular MIA injections (1.0 mg/30 μL) and underwent surgery 4 days later. HA sheets were transplanted on the right knee of each rat (HA group), with the left knee receiving sham surgery (sham group). Incapacitance tests were performed at multiple time points up to 28 days after MIA injection. Macroscopic, histological, and immunohistochemical analyzes were performed 14 and 28 days after injection. The concentrations of HA and interleukin-1β (IL-1β) in the synovial fluid were measured using ELISA. Transplantation of HA sheets could alleviate persistent pain 10-28 days after injection. The HA sheets inhibited articular cartilage degeneration at 14 days. Fibrosis and the invasion of calcitonin gene-related peptide-positive nerve fiber endings in the IFP were inhibited at both 14 and 28 days. Moreover, the HA sheets remained histologically until 10 days after transplantation. The concentration of HA reached its peak on Day 10 after transplantation; the concentration of IL-1β in the sham group was significantly higher than that in the HA group on Day 7. Therefore, HA sheets could be a promising option to treat IFP fibrosis occurring in KOA and after knee joint surgery.
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Affiliation(s)
- Zhen Qu
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kunikazu Tsuji
- Department of Nano-bioscience, Tokyo Medical and Dental University, Tokyo, Japan
| | - Guo Tang
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yang Yang
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Aritoshi Yoshihara
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mai Katakura
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroki Katagiri
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazumasa Miyatake
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomasa Nakamura
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ichiro Sekiya
- Center for Stem Cell and Regenerative Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Nakagawa
- Department of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Cartilage Regeneration, Tokyo Medical and Dental University, Tokyo, Japan
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Badi FE, Simoni P. Painful patellar swelling. Skeletal Radiol 2023; 52:275-276. [PMID: 36028564 DOI: 10.1007/s00256-022-04162-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/10/2022] [Accepted: 08/14/2022] [Indexed: 02/02/2023]
Affiliation(s)
- Fatima-Ezzahrae Badi
- Radiology department of Queen Fabiola Children's University Hospital, Brussels, Belgium. .,Faculty of Medicine and pharmacy of Hassan II University, Casablanca, Morocco.
| | - Paolo Simoni
- Radiology department of Queen Fabiola Children's University Hospital, Brussels, Belgium
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Magnetic resonance imaging landmarks for preoperative localization of inferior medial genicular artery: a proof of concept analysis. J Exp Orthop 2020; 7:73. [PMID: 32989614 PMCID: PMC7522143 DOI: 10.1186/s40634-020-00288-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/10/2020] [Indexed: 12/02/2022] Open
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Ge Z, Ma L, Tang H, Yang M, Yang A, Yuan C, Tao X, Zhou B, Tang K, Chen W. Comparison of dorsal closing wedge calcaneal osteotomy versus posterosuperior prominence resection for the treatment of Haglund syndrome. J Orthop Surg Res 2020; 15:168. [PMID: 32381106 PMCID: PMC7206805 DOI: 10.1186/s13018-020-01687-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/29/2020] [Indexed: 11/22/2022] Open
Abstract
Background Haglund syndrome is a common disease that causes posterior heel pain. This study compared the clinical outcomes of dorsal closing wedge calcaneal osteotomy (DCWCO) and posterosuperior prominence resection (PPR) for the treatment of Haglund syndrome. Methods This retrospective study included 12 patients who underwent DCWCO and 32 patients who underwent PPR from January 2010 to August 2016. Patients were evaluated using the American Orthopedic Foot Ankle Society ankle-hindfoot scale (AOFAS), Victorian Institute of Sport Assessment Scale for Achilles tendinopathy (VISA-A), Fowler-Philip angle, Bohler’s angle, and calcaneal pitch angle preoperatively and postoperatively (at 3 months, 6 months, 1 year, and the latest follow-up). Results Both groups exhibited a significant increase in their AOFAS and VISA-A scores after surgery. The DCWCO group had lower AOFAS scores than the PPR group at 6 months (77.6 ± 5.1 vs. 82.8 ± 7.8; P = 0.037) but had higher scores at the latest follow-up (98.2 ± 2.3 vs. 93.4 ± 6.1; P = 0.030). The DCWCO group had lower VISA-A scores at 3 months (56.9 ± 13.9 vs. 65.2 ± 11.0; P = 0.044) but higher scores at the latest follow-up (98.2 ± 2.6 vs. 94.3 ± 5.0; P = 0.010) than the PPR group. Both groups exhibited significant changes in the Fowler-Philip angle and Bohler’s angle after surgery. The postoperative Fowler-Philip angle of the DCWCO group was greater than that of the PPR group (35.9° ± 4.9° vs. 31.4° ± 6.2°; P = 0.026). However, there was no statistically significant difference in any other angle of the two groups postoperatively. Conclusions Compared to the PPR group, the DCWCO group had poorer short-term clinical outcomes but provide better long-term function and symptom remission. This method can be a good option for those patients with higher functional expectations.
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Affiliation(s)
- Zilu Ge
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Lin Ma
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Hong Tang
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Mingyu Yang
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Aining Yang
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Chengsong Yuan
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Xu Tao
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Binghua Zhou
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Kanglai Tang
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China
| | - Wan Chen
- Department of Orthopaedics/Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Gaotanyan Street 30, Shapingba District, Chongqing, 400038, China.
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Leese J, Davies DC. An investigation of the anatomy of the infrapatellar fat pad and its possible involvement in anterior pain syndrome: a cadaveric study. J Anat 2020; 237:20-28. [PMID: 32159227 DOI: 10.1111/joa.13177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 12/09/2019] [Accepted: 02/12/2020] [Indexed: 12/26/2022] Open
Abstract
The infrapatellar fat pad (IFP) is an extrasynovial, intracapsular, adipose body occupying the space in the knee joint between the inferior border of the patella, the femoral condyles, tibial plateau and patellar tendon. Little is known about the anatomy and normal function of the IFP, but it has been suggested to play a role in the aetiology of Anterior knee pain syndrome, including that associated with osteoarthritis. Forty-three knees from 11 male and 15 female embalmed cadavers (mean age 84 years; range 55-97 years) were investigated. The cadavers were donated and the study performed in compliance with the provisions of the UK Human Tissue Act (2004). The quadriceps tendon and the medial and lateral patellar retinacula were dissected from the patella, which was then reflected antero-distally. The IFP was carefully excised and details of its morphology and attachments to components of the knee joint were recorded, together with the presence of articular surface pathology on the patella and femoral condyles. The principal novel findings of the current study were that 81% of IFPs were attached to the superior border of the patella by supero-medial extensions and 65% were attached by supero-lateral extensions; the supero-medial extensions were larger than the supero-lateral extensions. The superior extensions of the IFP were always attached anteriorly to the patellar retinacula and in four individuals the extensions formed a full loop around the superior border of the patella. The volume of IFPs with attachments to the superior border of the patella was significantly greater (p = .007) than those without, and the IFP was attached to the medial meniscus in significantly (p = .009) more knees with IFP attachment to the superior border of the patella than those without. All IFPs were attached to the medial anterior horn of the meniscus and the medial Kaplan's ligament. Ninety-seven per cent were attached to the lateral anterior horn of the meniscus and 97% to the lateral Kaplan's ligament. The length of IFP attachment to the lateral meniscus was significantly longer (p = .004) than that to the medial meniscus. Ninety-seven per cent of IFPs were attached to the superior portion of the patellar tendon with the mean tendon attachment being 60%. Ninety-one per cent of IFPs were attached to the inferior border of the patella. Significantly fewer knees with patellar (p = .001) and femoral (p = .002) articular surface osteophytes exhibited superior IFP extensions and these extensions were significantly shorter in knees with patellar (p = .000) and femoral (p = .006) osteophytes, compared with those without. The IFP was attached to the medial meniscus in significantly fewer knees with femoral (p = .050) and patellar (p = .023) osteophytes than those without. All IFPs not attached to the anterior horn of the lateral menisci, medial Kaplan's ligament, superior patella or inferior border of the patella, were in knees with articular surface osteophytes. This relationship between IFP morphology and knee joint pathology suggests a functional role for the IFP that requires further investigation.
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Affiliation(s)
- Jack Leese
- Human Anatomy Unit, Department of Surgery and Cancer, Imperial College London, London, UK
| | - D Ceri Davies
- Human Anatomy Unit, Department of Surgery and Cancer, Imperial College London, London, UK
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9
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Smeets JSJ, Horstman AMH, Vles GF, Emans PJ, Goessens JPB, Gijsen AP, van Kranenburg JMX, van Loon LJC. Protein synthesis rates of muscle, tendon, ligament, cartilage, and bone tissue in vivo in humans. PLoS One 2019; 14:e0224745. [PMID: 31697717 PMCID: PMC6837426 DOI: 10.1371/journal.pone.0224745] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle plasticity is reflected by a dynamic balance between protein synthesis and breakdown, with basal muscle tissue protein synthesis rates ranging between 0.02 and 0.09%/h. Though it is evident that other musculoskeletal tissues should also express some level of plasticity, data on protein synthesis rates of most of these tissues in vivo in humans is limited. Six otherwise healthy patients (62±3 y), scheduled to undergo unilateral total knee arthroplasty, were subjected to primed continuous intravenous infusions with L-[ring-13C6]-Phenylalanine throughout the surgical procedure. Tissue samples obtained during surgery included muscle, tendon, cruciate ligaments, cartilage, bone, menisci, fat, and synovium. Tissue-specific fractional protein synthesis rates (%/h) were assessed by measuring the incorporation of L-[ring-13C6]-Phenylalanine in tissue protein and were compared with muscle tissue protein synthesis rates using a paired t test. Tendon, bone, cartilage, Hoffa’s fat pad, anterior and posterior cruciate ligament, and menisci tissue protein synthesis rates averaged 0.06±0.01, 0.03±0.01, 0.04±0.01, 0.11±0.03, 0.07±0.02, 0.04±0.01, and 0.04±0.01%/h, respectively, and did not significantly differ from skeletal muscle protein synthesis rates (0.04±0.01%/h; P>0.05). Synovium derived protein (0.13±0.03%/h) and intercondylar notch bone tissue protein synthesis rates (0.03±0.01%/h) were respectively higher and lower compared to skeletal muscle protein synthesis rates (P<0.05 and P<0.01, respectively). Basal protein synthesis rates in various musculoskeletal tissues are within the same range of skeletal muscle protein synthesis rates, with fractional muscle, tendon, bone, cartilage, ligament, menisci, fat, and synovium protein synthesis rates ranging between 0.02 and 0.13% per hour in vivo in humans. Clinical trial registration: NTR5147
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Affiliation(s)
- Joey S J Smeets
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Astrid M H Horstman
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Georges F Vles
- Department of Orthopedic Surgery, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Pieter J Emans
- Department of Orthopedic Surgery, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Joy P B Goessens
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Annemie P Gijsen
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Janneau M X van Kranenburg
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Luc J C van Loon
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
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Vascular supply at risk during lateral release of the patella during total knee arthroplasty: A cadaveric study. J Clin Orthop Trauma 2019; 10:107-110. [PMID: 30705542 PMCID: PMC6349579 DOI: 10.1016/j.jcot.2017.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/14/2017] [Accepted: 11/23/2017] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Lateral release to improve patellar tracking is commonly performed during total knee arthroplasty. Blood is supplied to the lateral patella by two main arteries: the superior and inferior lateral genicular arteries. The transverse infrapatellar artery also branches off the lateral inferior genicular artery to supply the inferior half of the patella. Severance of any of these arteries during lateral release can lead to avascular necrosis of the patella. This cadaveric study investigates the lateral vasculature to the patella and whether it can be visualized and preserved during lateral release of the patella. MATERIALS AND METHODS This study involved ten cadavers, each of which underwent lateral release of the patella. One senior joint surgeon performed and supervised the incisions and attempted to locate and preserve these vessels. We then quantified the number of cadavers with visualized blood vessels and analysed their location and course to determine whether they could be preserved during lateral release of the patella. RESULTS In our study, three of the ten cadavers had an artery that was visible within the incisional plane and preserved. Two were the inferior lateral genicular artery, and one was the superior lateral genicular artery. In the other seven cadavers, no vessels were visualized during the lateral dissection. CONCLUSIONS These results demonstrate that it is difficult to visualize blood supply to the patella during lateral release. Every attempt should be made to preserve these blood vessels to avoid devascularization to patella in the setting of an already severed medial vascularity due to standard approach to knee replacement.
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Sonographic characterization of Hoffa's fat pad. A pilot study. Rheumatol Int 2017; 37:757-764. [PMID: 28132101 DOI: 10.1007/s00296-016-3647-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 12/30/2016] [Indexed: 10/20/2022]
Abstract
This study addresses a topic that was previously unaddressed in the literature: the normal sonographic appearance of the Hoffa's fat pad (HFP) in young, asymptomatic subjects. The aim of the study is to describe the sonoanatomical features of HFP, including its echostructure, echogenicity, elasticity, and vascularization, in subjects without knee pathology. Knees of healthy subjects were examined with grayscale ultrasound (US) to determine the sonographic characteristics of the HFP. Echogenicity was assessed by pixel intensity quantification. Vascularity was evaluated by color Doppler (CD) US. Elasticity of the adipose tissue was examined by sonoelastography. The absence of HFP pathology was confirmed clinically in all participants and by magnetic resonance imaging in randomly selected participants. Seventy-two knees from 36 subjects were assessed. The HFP presented a characteristic well-defined two-layered echostructure: the superficial adipose tissue was hypoechoic with respect to the nearby patellar tendon and contained septae, whereas the deeper layer was homogeneously hypoechoic and lacked connective tissue septae. Echogenicity differed between the superficial and deeper layers (the deeper layer was brighter), suggesting that the degree of acoustic impedance differed between layers. CD detected blood flow in 55.5% of HFPs. The superficial HFP layer presented greater elasticity than the deeper HFP layer (88.8 vs. 75.3 Kpa; p < .001). Our study provides a comprehensive description of the normal sonographic features of the HFP, which is useful to increase the potential of US for the discrimination of pathological findings involving this anatomical area.
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