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  1. AU="Sharma, Akash D"
  2. AU="Khan, Aasim"
  3. AU="Clausen, Henrik B"
  4. AU="Makky, Essam A"
  5. AU="Zhu, Chenglou"
  6. AU="Mohammadi, Asma"
  7. AU="Akhtar, Areej"
  8. AU="Reyes, Karen M"
  9. AU="Rose Waswa"
  10. AU="Vahabirad, Mohammad"
  11. AU=Hamam Dana
  12. AU="Textor, Johannes"
  13. AU="Rao, Nanquan"
  14. AU="Monzikova, Anna"
  15. AU="Kulshreshtha, Ritu"
  16. AU="Wilson, Allecia M"
  17. AU="Victorino, Pedro H"
  18. AU="Ban, Sungbea"
  19. AU="Leon-Astudillo, Carmen"
  20. AU=Shrivastav Meena
  21. AU="He, Lingyuan"
  22. AU="Suo, Tao"
  23. AU="Wright, Joseph L"
  24. AU="Sun, Xuegang"
  25. AU="Chien-Wei Su"
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  1. Article ; Online: The ROSA robotic-arm system reliably restores joint line height, patella height and posterior condylar offset in total knee arthroplasty.

    Mayne, Alistair Iw / Rajgor, Harshadkumar / Munasinghe, Chathura / Agrawal, Yuvraj / Pagkalos, Joseph / Davis, Edward T / Sharma, Akash D

    The Knee

    2024  Volume 48, Page(s) 1–7

    Abstract: Introduction: There is growing interest in the use of robotic TKA to improve accuracy of component positioning in Total Knee Arthroplasty (TKA). The aim of this study was to investigate the accuracy of implant component position using the ROSA® knee ... ...

    Abstract Introduction: There is growing interest in the use of robotic TKA to improve accuracy of component positioning in Total Knee Arthroplasty (TKA). The aim of this study was to investigate the accuracy of implant component position using the ROSA® knee system with specific reference to Joint Line Height, Patella Height and Posterior Condylar Offset (PCO).
    Methods: This was a retrospective review of a prospectively-maintained database of the initial 100 consecutive TKAs performed by a high volume surgeon using the ROSA® knee system. Both the image-based and imageless workflow were used and two prosthesis types were implanted. To determine the accuracy of component positioning, the immediate post-operative radiograph was reviewed and compared with the immediate pre-operative radiograph with regards to Joint Line Height, Patella Height and Posterior Condylar Offset.
    Results: 100 consecutive patients undergoing TKA using the ROSA system were included; mean age 70 years (range 49-95 years). Mean change in joint line height was 0.2 mm, patella height (Insall-Salvati ratio) 0.01 and posterior condylar offset 0.02 mm; there was no statistically significant difference between the pre and post-operative values. No difference was demonstrated between image-based or imageless workflows, or between implant design (Persona versus Vanguard) regarding joint line height, patella height and PCO.
    Conclusion: This study validates the use of the ROSA® knee system in accurately restoring Joint Line Height, Patella Height and Posterior Condylar Offset in TKA surgery. No significant differences were found between imageless and image-based groups, or between implant designs (Persona versus Vanguard).
    Language English
    Publishing date 2024-03-09
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1200476-5
    ISSN 1873-5800 ; 0968-0160
    ISSN (online) 1873-5800
    ISSN 0968-0160
    DOI 10.1016/j.knee.2024.02.007
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  2. Article ; Online: Mako versus ROSA: comparing surgical accuracy in robotic total knee arthroplasty.

    Rajgor, Harshadkumar D / Mayne, Alistair / Munasinghe, Chathura / Pagkalos, Joseph / Agrawal, Yuvraj / Davis, Edward T / Sharma, Akash D

    Journal of robotic surgery

    2024  Volume 18, Issue 1, Page(s) 33

    Abstract: There is increasing adoption of robotic surgical technology in Total Knee Arthroplasty. The ROSA® knee system can be used in either image-based mode (using pre-operative calibrated radiographs) or imageless modes (using intra-operative bony registration). ...

    Abstract There is increasing adoption of robotic surgical technology in Total Knee Arthroplasty. The ROSA® knee system can be used in either image-based mode (using pre-operative calibrated radiographs) or imageless modes (using intra-operative bony registration). The Mako knee system is an image-based system (using a pre-operative CT scan). This study aimed to compare surgical accuracy between the ROSA and Mako systems with specific reference to joint line height, patella height, posterior condylar offset and tibial slope. This was a retrospective review of a prospectively collected data of the initial 50 consecutive ROSA TKAs and the initial 50 consecutive Mako TKAs performed by two high-volume surgeons. To determine the accuracy of component positioning, the immediate post-operative radiograph was reviewed and compared with the immediate pre-operative radiograph with regards to joint line height (JLH), patella height (PH), tibial slope (TS) and posterior condylar offset (PCO). Mean difference between pre- and post-operative radiographs using the ROSA knee system of joint line height was 0.47 mm (SD 0.95) posterior condylar offset 0.16 mm (SD 0.76), tibial slope 0.9 degrees (SD 1.6) and patella height 0.01 (SD 0.05). Mean difference using the MAKO knee system of joint line height was 0.26 (SD 1.08), posterior condylar offset -0.26 mm (SD 0.78), tibial slope 1.8 degrees and patella height 0.03. No significant difference was demonstrated between the accuracy of component positioning of the ROSA or MAKO knee systems. Our study is the first study to compare the accuracy of the ROSA and MAKO knee systems in total knee arthroplasty. Both systems are highly accurate in restoring native posterior condylar offset, joint line height, tibial slope and patella height in TKA with no significant difference demonstrated between the two groups.
    MeSH term(s) Humans ; Arthroplasty, Replacement, Knee ; Rosa ; Robotic Surgical Procedures/methods ; Robotics ; Tibia
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2268283-1
    ISSN 1863-2491 ; 1863-2483
    ISSN (online) 1863-2491
    ISSN 1863-2483
    DOI 10.1007/s11701-023-01786-6
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  3. Article ; Online: An evaluation of factors influencing the adoption and usage of robotic surgery in lower limb arthroplasty amongst orthopaedic trainees: a clinical survey.

    Saad, Ahmed / Mayne, Alistair I W / Pagkalos, Joseph / Ollivier, Matthieu / Botchu, Rajesh / Davis, Edward T / Sharma, Akash D

    Journal of robotic surgery

    2024  Volume 18, Issue 1, Page(s) 2

    Abstract: Background: The rise of robotics in orthopaedic training, driven by the demand for better training outcomes and patient care, presents specific challenges for junior trainees due to its novelty and steep learning curve. This paper explores how ... ...

    Abstract Background: The rise of robotics in orthopaedic training, driven by the demand for better training outcomes and patient care, presents specific challenges for junior trainees due to its novelty and steep learning curve. This paper explores how orthopaedic trainees perceive and adopt robotic-assisted lower limb arthroplasty.
    Methods: The study utilised the UTUAT model questionnaire as the primary data collection tool, employing targeted questions on a five-point Likert scale to efficiently gather responses from a large number of participants. Data analysis was conducted using partial least squares (PLS), a well-established method in previous technology acceptance research.
    Result: The findings indicate a favourable attitude amongst trainees towards adopting robotic technology in orthopaedic training. They acknowledge the potential advantages of improved surgical precision and patient outcomes through roboticassisted procedures. Social factors, including the views of peers and mentors, notably influence trainees' decision-making. However, the availability of resources and expert mentors did not appear to have a significant impact on trainees' intention to use robotic technology.
    Conclusion: The study contributes to the understanding of factors influencing trainees' interest in robotic surgery and emphasises the importance of creating a supportive environment for its adoption.
    MeSH term(s) Humans ; Orthopedics ; Robotic Surgical Procedures/methods ; Arthroplasty ; Lower Extremity ; Surveys and Questionnaires
    Language English
    Publishing date 2024-01-04
    Publishing country England
    Document type Letter
    ZDB-ID 2268283-1
    ISSN 1863-2491 ; 1863-2483
    ISSN (online) 1863-2491
    ISSN 1863-2483
    DOI 10.1007/s11701-023-01811-8
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  4. Article: A comparison of femoral tunnel placement in ACL reconstruction using a 70° arthroscope through the anterolateral portal versus a 30° arthroscope through the anteromedial portal: a pilot 3D-CT study.

    Kosy, Jonathan D / Walmsley, Katie / Sharma, Akash D / Gordon, Elizabeth A / Heddon, Sadie V / Anaspure, Rahul / Schranz, Peter J / Mandalia, Vipul I

    Knee surgery & related research

    2020  Volume 32, Issue 1, Page(s) 17

    Abstract: Background: Graft malposition is a risk factor for failure of anterior cruciate ligament reconstruction. A 70° arthroscope improves visualisation of the medial wall of the lateral femoral condyle without switching portals. We investigated whether the ... ...

    Abstract Background: Graft malposition is a risk factor for failure of anterior cruciate ligament reconstruction. A 70° arthroscope improves visualisation of the medial wall of the lateral femoral condyle without switching portals. We investigated whether the use of this arthroscope affected the accuracy and precision of femoral tunnel placement.
    Methods: Fifty consecutive adult patients were recruited. Following one withdrawal and two exclusions, 47 patients (30 in group 1 (70° arthroscope), 17 in group 2 (30° arthroscope)) underwent three-dimensional computed tomography imaging using a grid-based system to measure tunnel position.
    Results: No difference was found in the accuracy or precision of tunnels (mean position: group 1 = 33.3 ± 6.0% deep-shallow, 27.2 ± 5.2% high-low; group 2 = 31.7 ± 6.9% deep-shallow, 29.0 ± 6.2% high-low; not significant). A post-hoc power analysis suggests a study of 106 patients would be required.
    Conclusions: This pilot study suggests that tunnel position is not affected by the arthroscope used. An appropriately powered study could investigate this finding alongside other potential benefits of using a 70° arthroscope for this procedure.
    Trial registration: ClinicalTrials.gov, NCT02816606. Registered on 28 June 2016.
    Language English
    Publishing date 2020-04-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2673841-7
    ISSN 2234-2451 ; 2234-0726
    ISSN (online) 2234-2451
    ISSN 2234-0726
    DOI 10.1186/s43019-020-00037-4
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  5. Article ; Online: Atraumatic quadriceps tendon tear associated with calcific tendonitis.

    Abram, Simon G F / Sharma, Akash D / Arvind, Chinnakonda

    BMJ case reports

    2012  Volume 2012

    Abstract: Calcific tendonitis of the quadriceps tendon is an uncommon condition. We present the first case of a quadriceps tendon tear associated with calcific tendonitis. In this case, the patient presented with symptoms mimicking a rupture of the quadriceps ... ...

    Abstract Calcific tendonitis of the quadriceps tendon is an uncommon condition. We present the first case of a quadriceps tendon tear associated with calcific tendonitis. In this case, the patient presented with symptoms mimicking a rupture of the quadriceps tendon. This case illustrates that although calcific tendonitis of the quadriceps is a rare condition it is not benign and should be considered when investigating acute symptoms associated with the extensor mechanism of the knee.
    MeSH term(s) Adult ; Calcinosis/diagnosis ; Calcinosis/surgery ; Durapatite ; Humans ; Magnetic Resonance Imaging ; Male ; Quadriceps Muscle ; Rupture, Spontaneous/diagnosis ; Rupture, Spontaneous/surgery ; Tendinopathy/diagnosis ; Tendinopathy/surgery ; Tendon Injuries/diagnosis ; Tendon Injuries/surgery ; Ultrasonography
    Chemical Substances Durapatite (91D9GV0Z28)
    Language English
    Publishing date 2012-11-27
    Publishing country England
    Document type Case Reports ; Journal Article
    ISSN 1757-790X
    ISSN (online) 1757-790X
    DOI 10.1136/bcr-2012-007031
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