Radiocapitellar Joint Contact Pressures Following Radial Head Arthroplasty

Cohn, Michael; Glait, Sergio A.; Sapienza, Anthony; Kwon, Young W.

doi:10.1016/j.jhsa.2014.05.021

Cited by 23 publications

(21 citation statements)

References 23 publications

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“…We believe the differences between our results and those of the results of Sahu et al to be related to the 100 N compression force applied during testing in their study (we did not apply any compression force in our study). Cohn et al found no significant difference between the native radial head and a modular monopolar RHA, tested in neutral position at 0°, 45°, and 90° of flexion, and 9 kg muscle load. Conversely, Bachman et al showed a significant increase in contact pressure with RHA compared with the native radial head in a neutral position, full‐extension, and with 160 N compressive load.…”

Section: Discussionmentioning

confidence: 98%

“…However, we tried to ensure that the area of radiocapitellar joint contact was in the sensing area of the transducer. The 6,900 pressure transducer has formerly been used by others to compare the contact pressures in the native and implant radiocapitellar joint . However, it has some limitations in its use on non‐planar deformable surfaces, which should be taken into account when interpreting the results.…”

Section: Discussionmentioning

confidence: 99%

“…The output from the sensors was collected for analysis using I‐Scan analysis software (Tekscan®, South Boston, MA) provided by the manufacturer. Contact pressure ( = force/contact area) was measured in megapascal (MPa) …”

Section: Methodsmentioning

confidence: 99%

“…The influence of radial head arthroplasty (RHA) design on the biomechanics of the radiocapitellar joint (RCJ) has been widely examined . Lanting et al concluded that the diameter of the radial head can differ ±2 mm from the native head, without influencing the contact area and pressure in the RCJ.…”

mentioning

confidence: 99%

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Elbow Biomechanics, Radiocapitellar Joint Pressure, and Interosseous Membrane Strain Before and After Radial Head Arthroplasty

Hemmingsen

Thillemann

Elmengaard

et al. 2019

Journal Orthopaedic Research

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Complex radial head fracture and elbow instability can be treated with radial head arthroplasty. Good clinical results have been described after this surgical treatment. However, the revision and complication rate reported in the literature is concerning. This might be due to altered kinematics after radial head arthroplasty. Eight human native elbows were examined with dynamic radiostereometric analysis and compared with a radial head arthroplasty. Translations of the radial head in the x‐, y‐, and z‐directions relative to the humerus and the ulna were measured. The radiocapitellar joint pressure was measured using a pressure sensor. The tension within the interosseous membrane was measured using a custom‐made strain gauge. After radial head arthroplasty, the radial head was displaced approximately 1.8 mm medially and 1.4 mm distally at the starting point. During unloaded flexion motion the difference in all translations between the native radial head and the radial head arthroplasty was less than 1 mm (95% confidence interval [CI] ± 0.5 mm) (p = 0.001). With loading the difference was less than 1.5 mm (95% CI ± 1.5 mm) (p = 0.001). The mean difference in radiocapitellar joint contact pressure was less than 0.30 MPa (95% CI ± 0.40 MPa) (p = 0.001) during unloaded flexion motion. There were only submillimetre kinematic changes and small changes in joint pressure and interosseous membrane tension after the insertion of a radial head arthroplasty in an experimental setting. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:510–522, 2020

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Elbow Biomechanics, Radiocapitellar Joint Pressure, and Interosseous Membrane Strain Before and After Radial Head Arthroplasty

Hemmingsen

Thillemann

Elmengaard

et al. 2019

Journal Orthopaedic Research

View full text Add to dashboard Cite

show abstract

“…Biomechanical data illustrate that an overlengthening of 2.5 mm leads to a significant increase in radiocapitellar contact pressure. 54,55 The detection of overlengthening of the radial head is difficult. Frank and colleagues 56 showed in an in vitro study that overlengthening cannot be ruled out by a loss of parallelism of the ulnar ulnohumeral joint line on AP radiographs until there is 6 mm of overstuffing for monopolar implants in the MCL-sufficient elbow.…”

Section: Mason III and Ivmentioning

confidence: 99%