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Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_I | Pages 213 - 213
1 Mar 2010
Leonello D Sukthankar A Hertel R Ding G Sandow M
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Treatment strategies for the management of proximal humeral fractures are assisted by an understanding of the fracture morphology and, in particular, the viability of the humeral head. Although widely accepted, the AO and Neer classification systems show poor interobserver reproducibility and generally do not provide a basis to guide treatment. The aim of this study was to compare the interobserver and intraobserver reliability of a new classification system with the AO and Neer classifications and review its usefulness as a guide to management.

Hertel described a comprehensive binary (Lego) classification system, which defines fracture planes and parts, as well as incorporating calcar length, attachment and angulation. This facilitates predicting humeral head ischemia; however the sequential numerical form of the classification makes it complex and prone to categorisation error. Sandow has extended this to a more descriptive system by naming proximal humeral parts (H-head, G-greater tuberosity, L-lesser tuberosity, S-shaft), recording the fracture plane and optionally incorporating calcar length and head angulation or displacement.

50 proximal humeral fractures in 50 patients treated at the Department of Orthopaedics and Trauma, Royal Adelaide Hospital, were identified from the period of July 2007 to January 2008. All fractures of the proximal humerus were examined using AP, lateral and axial radiographs. Three independent reviewers classified the fractures using the AO, Neer and “HGLS Classification”. The findings were analysed specifically for intra/interobserver correlation and the indications for humeral head viability.

The median age of patients was 72 (range 50 to 85). Based on the interobserver correlation analysis, the AO and Neer Classification systems were graded as poor. The ‘HGLS’ Classification showed good interobserver agreement for all three examiners and more consistently provided guidelines for management based on humeral head viability.

While the parts system of Neer can still provide a general impression of the fracture form, the “HGLS classification” for proximal humeral fractures provided a more precise description of the fracture pattern which has important prognostic and therapeutic implications. It is quick to apply and easy to use as it does not require memorisation of a numerical classification and can help to understand fracture patterns and thus aid planning of a reduction and fixation strategy. Good interobserver correlation makes it a useful tool for communication between surgeons.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 39 - 39
1 Mar 2009
Bastian J Hertel R
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Background: The purpose of the presented study was to evaluate the longterm outcome of surgically treated complex fractures of the proximal humerus including fractures with initial humeral head ischemia. The study was focused on the assessment of the functional outcome as well as on the occurence of avascular necrosis.

Methods: 100 shoulders (98 patients/60y/21–88) with intracapsular fractures of the proximal humerus were included in a prospective surgical evaluation protocol (Binary [LEGO] description system: 48/100 4-, 46/100 3-, 6/100 2-fragment fractures). Humeral head perfusion was assessed intraoperatively by means of laser-Doppler flowmetry and borehole judgement. 51/100 fractures were treated with osteosynthesis (group A). 49/100 were treated with hemiarthroplasty (group B). In group A 41/51 heads were perfused at the index procedure (A1) and 10/51 were ischemic (A2). The patients were re-evaluated at a mean follow-up of 5.0 years (3.3–7.3) using the Constant-Murley-Score (CMS), the Subjective Shoulder Value (SSV) and conventional x-ray imaging.

Results: The median total CMS was 76 (37–98) in group A, 70 (39–84) (group B) (p=0.02). The median SSV was 92 (40–100) (group A) and 90 (40–100) in group B (p=0.93). In group A1 6/30 heads were structurally alterated but not collapsed; 4/30 were collapsed. In group A2 6/10 were structurally alterated but not collapsed; 3/10 were collapsed. The median CMS for patients without structural alterations was 80 (37–98), for those with structural alterations 84 (53–93) and for those with collapsed heads 63 (48–74). The median SSV was 95 (50–100), 92 (50–100) and 60 (40–80), respectively.

Conclusions: Revascularization of the humeral head after initial ischemia is possible and occured in 7/10 patients. Their functional results were comparable to those of patients with initially perfused heads. When feasible, osteosynthesis is a viable option even for ischemic heads. The indication for osteosynthesis should be weighed against the fact that Osteosynthesis and Arthroplasty showed comparable long-term results.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 159 - 159
1 Mar 2009
Kohl S Krueger A Gralla J Hertel R
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Introduction: Glenoid version seems to play an important role in the loading and stability of the glenohumeral joint. Measurement of Glenoid version on standard x-rays has been shown to be inaccurate. The purpose of this study was to assess the accuracy of the glenoid version measured on standard CT scans.

Material and Methods: The version of the glenoid was assessed using a multislice CT. We analysed 60 scapulae in 47 Patients (32 male; 18 to 83 years; 17 osteoarthritis and 29 instability). The retroversion of the glenoid was measured in 2 planes. First on the standard axial plane and second in a corrected axial plane (multiplanar reconstruction of scapula in a “true” axial plane with respect to the three-dimensional adjustment of the scapula).

Results: In the standard axial plane the mean retroversion was 8° (range, −5° to 22°). In the correct axial plane the difference of the retroversion was averages 6° compared to the standard axial plane. The range of the error was form 0° to 15°.

Conclusion: Measurement of glenoid retroversion on standard axial ct scans was unreliable. The clinical relevance: The standard shoulder CT is not suited for the preoperative planning of the glenoid correction. Therefore we would advocate the assessing of the glenoid version a defined “true” axial plane obtainable trough multiplanar reconstruction.


The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 2 | Pages 341 - 341
1 Mar 1997
LEUNIG M HERTEL R


The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 2 | Pages 341 - 341
1 Mar 1997
LEUNIG M HERTEL R


The Journal of Bone & Joint Surgery British Volume
Vol. 78-B, Issue 4 | Pages 584 - 587
1 Jul 1996
Leunig M Hertel R

We present three young men who sustained closed diaphyseal fracture of the tibia and later developed severe osteocutaneous necrosis induced by heat during intramedullary reaming. They all had a narrow medullary cavity and in all a tourniquet had been used. Each developed a pretibial cutaneous blister soon after operation. In the following month severe osteomyelitis ensued, requiring segmental resection and osteocutaneous reconstruction.


The Journal of Bone & Joint Surgery British Volume
Vol. 77-B, Issue 6 | Pages 914 - 919
1 Nov 1995
Hertel R Pisan M Jakob R

Between 1989 and 1994 we used a vascularised ipsilateral fibular graft in 24 patients with segmental tibial defects. We report 12 patients with a minimum follow-up of two years. The graft was either transposed medially or inverted on its vascular pedicle. Full weight-bearing was achieved at between four and seven months. We had few complications and consider that the use of this method is a valuable option in reconstruction of the tibia.