Use of Ligament Advanced Reinforcement System tube in stabilization of proximal humeral endoprostheses.
OBJECTIVE
To review outcomes following usage of the Ligament Advanced Reinforcement System (LARS(®)) in shoulder tumors.


METHODS
Medical records of nineteen patients (19 shoulders) that underwent tumor excisional procedure and reconstruction with the LARS synthetic fabric, were retrospectively reviewed.


RESULTS
Patients' median age was 58 years old, while the median length of resection was 110 mm (range 60-210 mm). Compared to immediate post-operative radiographs, the prosthesis mean end-point position migrated superiorly at a mean follow up period of 26 mo (P = 0.002). No statistical significant correlations between the prosthesis head size (P = 0.87); the implant stem body length (P = 0.949); and the length of resection (P = 0.125) with the position of the head, were found at last follow up. Two cases of radiological dislocation were noted but only one was clinically symptomatic. A minor superficial wound dehiscence, healed without surgery, occurred. There was no evidence of aseptic loosening either, and no prosthetic failure.


CONCLUSIONS
LARS(®) use ensured stability of the shoulder following endoprosthetic reconstruction in most patients.
Nikolaos A Stavropoulos, Firas Dandachli, Robert E Turcotte, Department of Orthopedic Surgery, McGill University Health Centre, Montreal, QC H3G 1A4, Canada.
Nikolaos A
NA
Stavropoulos
Nikolaos A Stavropoulos, Firas Dandachli, Robert E Turcotte, Department of Orthopedic Surgery, McGill University Health Centre, Montreal, QC H3G 1A4, Canada.
Hassan
H
Sawan
Nikolaos A Stavropoulos, Firas Dandachli, Robert E Turcotte, Department of Orthopedic Surgery, McGill University Health Centre, Montreal, QC H3G 1A4, Canada.
Firas
F
Dandachli
Nikolaos A Stavropoulos, Firas Dandachli, Robert E Turcotte, Department of Orthopedic Surgery, McGill University Health Centre, Montreal, QC H3G 1A4, Canada.
Robert E
RE
Turcotte
Ligament Advanced Reinforcement System; Proximal humeral endoprostheses