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Chinmay M Gupte

Publications and source records attributed to Chinmay M Gupte.

5 recordsLinked to original sources
PubMed2003

A review of the function and biomechanics of the meniscofemoral ligaments.

PURPOSE: The goal of this study was to review current knowledge on the anatomy, biomechanics, and functions of the meniscofemoral ligaments. TYPE OF STUDY: Literature review. METHODS: A systematic search of the literature spanning the past 2 centuries was performed. This revealed several anatomic and biomechanical studies, which were analyzed for the presence, incidence, function, and biomechanics of the meniscofemoral ligaments. RESULTS: An analysis of 16 anatomic studies revealed that from 1,022 cadaveric knees examined, 931 (91.1%) had at least 1 meniscofemoral ligament; an anterior meniscofemoral ligament was present in 390 (48.2%) of specimens, and a posterior meniscofemoral ligament was present in 569 (70.4%). The 2 ligaments coexisted in 257 knees (31.8%). This high incidence might imply a functional role for these structures. Early theories on the function of these ligaments focused on their role as secondary restraints supplementing the posterior cruciate ligament. More recent hypotheses have concentrated on a role in guiding the motion of the lateral meniscus. CONCLUSIONS: The contribution of the meniscofemoral ligaments in the prognosis and management of posterior cruciate ligament and meniscal injuries remains undetermined. An examination of the structure, properties, and function of the meniscofemoral ligaments reveals that more biomechanical and imaging research is required, together with clinical observations, on the consequences of rupture of these ligaments.

Biomechanical Phenomena↗
PubMed2003

The meniscofemoral ligaments: secondary restraints to the posterior drawer. Analysis of anteroposterior and rotary laxity in the intact and posterior-cruciate-deficient knee.

We have tested the hypothesis that the meniscofemoral ligaments make a significant contribution to resisting anteroposterior and rotatory laxity of the posterior-cruciate-ligament-deficient knee. Eight cadaver human knees were tested for anteroposterior and rotatory laxity in a materials-testing machine. The posterior cruciate ligament (PCL) was then divided, followed by division of the meniscofemoral ligaments (MFLs). Laxity results were obtained for intact, PCL-deficient, and PCL-MFL-deficient knees. Division of the MFLs in the PCL-deficient knee increased posterior laxity between 15 degrees and 90 degrees of flexion. Force-displacement measurements showed that the MFLs contributed 28% to the total force resisting posterior drawer at 90 degrees of flexion in the intact knee, and 70.1% in the PCL-deficient knee. There was no effect on rotatory laxity. This is the first study which shows a function for the MFLs as secondary restraints to posterior tibial translation. The integrity of these structures should be assessed during both imaging and arthroscopic studies of PCL-injured knees since this may affect the diagnosis and management of such injuries.

Biomechanical Phenomena↗
PubMed2002

Meniscofemoral ligaments--structural and material properties.

The meniscofemoral ligaments (MFLs) of 28 human cadaveric knees were studied to determine their incidence, structural and material properties. Using the Race-Amis casting method for measurement, the mean cross-sectional area for the anterior MFL (aMFL) was 14.7 mm(2) (+/-14.8mm(2)) whilst that of the posterior MFL (pMFL) was 20.9 mm(2) (+/-11.6mm(2)). The ligaments were isolated and tensile tested in a materials testing machine. The mean loads to failure were 300.5 N (+/-155.0 N) for the aMFL and 302.5 N (+/-157.9 N) for the pMFL, with elastic moduli of 281 (+/-239 MPa) and 227 MPa (+/-128 MPa), respectively. These significant anatomical and material properties suggest a function for the MFL in the biomechanics of the knee, and should be borne in mind when considering hypotheses on MFL function. Such hypotheses include roles for the ligaments in knee stability and guiding meniscal motion.

Aged↗
PubMedDate not supplied

The transfibular approach for distal tibial osteochondroma: an alternative technique for excision.

Surgical excision of osteochondromata occurring at the lateral aspect of the distal tibia is hampered by the difficult access to this area. Current techniques use an anterior approach, but this makes access to the posterior aspect of the tibia difficult. The authors report on 2 cases in which removal, and subsequent replacement of distal fibula and fixation with a semitubular plate, allowed complete excision of a distal tibial osteochondroma and satisfactory outcomes. This procedure provides an alternative technique to the anterior approach previously described. The literature appears to contain no similar previous reports.

Adolescent↗