Imperial College London

Dr Kiron Athwal

Faculty of EngineeringDepartment of Mechanical Engineering

Research Associate
 
 
 
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Contact

 

k.athwal12

 
 
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Location

 

774City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

13 results found

Athwal KK, Milner PE, Bellier G, Amis AAet al., 2018, Posterior capsular release is a biomechanically safe procedure to perform in total knee arthroplasty., Knee Surg Sports Traumatol Arthrosc

PURPOSE: Surgeons may attempt to strip the posterior capsule from its femoral attachment to overcome flexion contracture in total knee arthroplasty (TKA); however, it is unclear if this impacts anterior-posterior (AP) laxity of the implanted knee. The aim of the study was to investigate the effect of posterior capsular release on AP laxity in TKA, and compare this to the restraint from the posterior cruciate ligament (PCL). METHODS: Eight cadaveric knees were mounted in a six degree of freedom testing rig and tested at 0°, 30°, 60° and 90° flexion with ± 150 N AP force, with and without a 710 N axial compressive load. After the native knee was tested, a deep dished cruciate-retaining TKA was implanted and the tests were repeated. The PCL was then cut, followed by releasing the posterior capsule using a curved osteotome. RESULTS: With 0 N axial load applied, cutting the PCL as well as releasing the posterior capsule significantly increased posterior laxity compared to the native knee at all flexion angles, and CR TKA states at 30°, 60° and 90° (p < 0.05). However, no significant increase in laxity was found between cutting the PCL and subsequent PostCap release (n.s.). In anterior drawer, there was a significant increase of 1.4 mm between cutting the PCL and PostCap release at 0°, but not at any other flexion angles (p = 0.021). When a 710 N axial load was applied, there was no significant difference in anterior or posterior translation across the different knee states (n.s.). CONCLUSIONS: Posterior capsular release only caused a small change in AP laxity compared to cutting the PCL and, therefore, may not be considered detrimental to overall AP stability if performed during TKA surgery. LEVEL OF EVIDENCE: Controlled laboratory study.

JOURNAL ARTICLE

Halewood C, Athwal KK, Amis AA, 2018, Pre-clinical assessment of total knee replacement anterior-posterior constraint, JOURNAL OF BIOMECHANICS, Vol: 73, Pages: 153-160, ISSN: 0021-9290

JOURNAL ARTICLE

Athwal KK, Lord B, Milner P, Gutteridge A, Amis AAet al., 2017, 0036 - A NOVEL DESIGN OF METAL INTERFERENCE SCREW CAN IMPROVE EASE OF INSERTION WHILE MAINTAINING FIXATION, The Knee, Vol: 24, Pages: IX-IX, ISSN: 0968-0160

JOURNAL ARTICLE

Athwal KK, El Daou H, Lord B, Davies AJ, Manning W, Rodriguez y Baena F, Deehan DJ, Amis AAet al., 2017, Lateral soft-tissue structures contribute to cruciate-retaining total knee arthroplasty stability, JOURNAL OF ORTHOPAEDIC RESEARCH, Vol: 35, Pages: 1902-1909, ISSN: 0736-0266

JOURNAL ARTICLE

Athwal KK, El Daou H, Inderhaug E, Manning W, Davies AJ, Deehan DJ, Amis AAet al., 2017, An in vitro analysis of medial structures and a medial soft tissue reconstruction in a constrained condylar total knee arthroplasty, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 2646-2655, ISSN: 0942-2056

JOURNAL ARTICLE

Athwal KK, El Daou H, Inderhaug E, Manning W, Davies AJ, Deehan DJ, Amis AAet al., 2017, An in vitro analysis of medial structures and a medial soft tissue reconstruction in a constrained condylar total knee arthroplasty (vol 25, pg 2646, 2016), KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 25, Pages: 2656-2656, ISSN: 0942-2056

JOURNAL ARTICLE

Athwal KK, El Daou H, Kittl C, Davies AJ, Deehan DJ, Amis AAet al., 2016, The superficial medial collateral ligament is the primary medial restraint to knee laxity after cruciate-retaining or posterior-stabilised total knee arthroplasty: effects of implant type and partial release, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 24, Pages: 2646-2655, ISSN: 0942-2056

JOURNAL ARTICLE

Kittl C, El-Daou H, Athwal KK, Gupte CM, Weiler A, Williams A, Amis AAet al., 2016, The Role of the Anterolateral Structures and the ACL in Controlling Laxity of the Intact and ACL-Deficient Knee: Response, AMERICAN JOURNAL OF SPORTS MEDICINE, Vol: 44, Pages: NP15-NP18, ISSN: 0363-5465

JOURNAL ARTICLE

Kittl C, El-Daou H, Athwal KK, Gupte CM, Weiler A, Williams A, Amis AAet al., 2016, The Role of the Anterolateral Structures and the ACL in Controlling Laxity of the Intact and ACL-Deficient Knee, AMERICAN JOURNAL OF SPORTS MEDICINE, Vol: 44, Pages: 345-354, ISSN: 0363-5465

JOURNAL ARTICLE

Ghosh KM, Hunt N, Blain A, Athwal KK, Longstaff L, Amis AA, Rushton S, Deehan DJet al., 2015, Isolated popliteus tendon injury does not lead to abnormal laxity in posterior-stabilised total knee arthroplasty, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 23, Pages: 1763-1769, ISSN: 0942-2056

JOURNAL ARTICLE

Hunt NC, Ghosh KM, Athwal KK, Longstaff LM, Amis AA, Deehan DJet al., 2014, Lack of evidence to support present medial release methods in total knee arthroplasty, KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, Vol: 22, Pages: 3100-3112, ISSN: 0942-2056

JOURNAL ARTICLE

Hunt NC, Ghosh KM, Blain AP, Athwal KK, Rushton SP, Amis AA, Longstaff LM, Deehan DJet al., 2014, How Does Laxity After Single Radius Total Knee Arthroplasty Compare With the Native Knee?, JOURNAL OF ORTHOPAEDIC RESEARCH, Vol: 32, Pages: 1208-1213, ISSN: 0736-0266

JOURNAL ARTICLE

Athwal KK, Hunt NC, Davies AJ, Deehan DJ, Amis AAet al., 2014, Clinical biomechanics of instability related to total knee arthroplasty, CLINICAL BIOMECHANICS, Vol: 29, Pages: 119-128, ISSN: 0268-0033

JOURNAL ARTICLE

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