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Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling
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Early Results of the A.L.P.S. Proximal Humerus Locking Plate

Miltiadis Argyropoulos1, Matthew Kent1

  • 1Department of Trauma & Orthopaedics, Royal Liverpool & Broadgreen University Hospital Trust, Appointment of Registrar Trauma & Orthopaedics, Prescot St, Liverpool L7 8XP, UK.

The Open Orthopaedics Journal
|March 16, 2018
PubMed

Insights

The A.L.P.S. Proximal Humerus Plating System shows promising results for displaced proximal humerus fractures, achieving high union rates and good functional outcomes in a small patient cohort. This new implant may reduce complications associated with traditional fixation methods.

Area of Science:

  • Orthopedic surgery
  • Traumatology
  • Biomaterials engineering

Background:

  • Open reduction internal fixation (ORIF) is a standard treatment for displaced proximal humerus fractures, especially in younger patients.
  • Traditional fixed-angled locking plates can lead to complications like glenoid damage and subacromial impingement.
  • The A.L.P.S. Proximal Humerus Plating System introduces smooth locking pegs and a low-profile design to mitigate these risks.

Purpose of the Study:

  • To evaluate the preliminary outcomes of the novel A.L.P.S. Proximal Humerus Plating System.
  • To assess union rates, functional recovery, and complications in patients with displaced proximal humerus fractures treated with this new implant.

Main Methods:

  • Retrospective analysis of 15 consecutive patients with closed, displaced 3-part or 4-part proximal humerus fractures.
  • Surgical fixation was performed using the A.L.P.S. plate.
  • Outcome measures included radiographic and clinical union, Oxford Shoulder Score (OSS), quick Disabilities of the Arm, Shoulder and Hand (DASH) score, and complication assessment.

Main Results:

  • All 15 patients achieved radiographic and clinical union, with a mean time to union of 15.1 weeks.
  • Mean Oxford Shoulder Score was 33.6, and mean quick DASH score was 32.5, indicating satisfactory functional recovery.
  • No instances of avascular necrosis (AVN) were reported during the average 31.9-week follow-up period.

Conclusions:

  • The A.L.P.S. Proximal Humerus Plating System demonstrates comparable union rates and functional outcomes to existing plating systems.
  • This study provides the first report on the clinical performance of the A.L.P.S. implant.
  • The implant's design may offer advantages in reducing specific complications related to proximal humerus fracture fixation.
Abstract

Keywords:
A.L.P.S.ALPSProximal humerusfixationfracturelocking platetrauma

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