Intraarticular capacity of the elbow joint

ABSTRACT

Introduction: The intraarticular capacity of the elbow joint is reported to be 23 ± 4ml on cadaveric elbows. During years, this value was the standard. The aim of this observational study was to reanalyze the volume of the elbow joint on live patients.

Materials and methods: Measurement of the intraarticular capacity and pressure of the elbow joint was performed on 30 patients (mean age: 43.8 years) undergoing elbow arthroscopy. Intra-articular capacity was recorded when the elbow moved to the maximum lose packed position and/or when there was a sudden drop in pressure, indicating a capsular rupture (maximum capacity). Indications for arthroscopy were loose bodies, osteoarthritis, synovitis, radial head resection and lateral collateral ligament repair.

Results: Mean intraarticular capacity and pressure were 35.8 ml and 557.5 mmHg respectively. Mean maximal capacity was 40.5 ml.

Conclusions: We conclude that the intraarticular capacity of the elbow joint is substantially greater than reported in previous studies. This article is protected by copyright. All rights reserved.

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