BACKGROUND: The purpose of this study was to assess the short-term radiographic outcome of a fully uncemented reverse total shoulder arthroplasty (RTSA) system. MATERIALS AND METHODS: We reviewed the radiographs of 98 consecutive patients undergoing uncemented RTSA. All patients had a standardized series of radiographs taken at 2 weeks, 1 year, and 2 years postoperatively. Humeral stems were evaluated for radiolucent lines by zone and component subsidence. Evaluation for scapular notching and radiolucency surrounding the baseplate implant within the glenoid vault was also performed. RESULTS: At 1 year, 93.9% of humeral stems had no lucent lines and 6.1% had less than 2 mm of lucency. Of the scapulae, 76.6% showed no evidence of notching, 21.4% had type 1 scapular notching, and 2.0% had type 2 notching at 1 year. At 2 years, 89.5% of humeral stem components had no lucent lines and 10.5% had less than 2 mm of lucency. Fifty-seven percent of scapulae had no notching, 34.2% had type 1 notching, 5.3% had type 2 notching, and 2.6% had type 3 notching. No stems had lucency in more than 1 zone or lucency ≥ 2 mm; 9.2% had subsidence of 2 mm or less. No glenoid components had any lucency around the baseplate or screws. CONCLUSIONS: Cementless trabecular metal porous-coated implants for RTSA are associated with secure glenoid fixation and minimal radiographic evidence of humeral stem loosening or subsidence at short-term follow-up. The rates of scapular notching found in our study are comparable to previous studies and did not affect implant stability.
BACKGROUND: The purpose of this study was to assess the short-term radiographic outcome of a fully uncemented reverse total shoulder arthroplasty (RTSA) system. MATERIALS AND METHODS: We reviewed the radiographs of 98 consecutive patients undergoing uncemented RTSA. All patients had a standardized series of radiographs taken at 2 weeks, 1 year, and 2 years postoperatively. Humeral stems were evaluated for radiolucent lines by zone and component subsidence. Evaluation for scapular notching and radiolucency surrounding the baseplate implant within the glenoid vault was also performed. RESULTS: At 1 year, 93.9% of humeral stems had no lucent lines and 6.1% had less than 2 mm of lucency. Of the scapulae, 76.6% showed no evidence of notching, 21.4% had type 1 scapular notching, and 2.0% had type 2 notching at 1 year. At 2 years, 89.5% of humeral stem components had no lucent lines and 10.5% had less than 2 mm of lucency. Fifty-seven percent of scapulae had no notching, 34.2% had type 1 notching, 5.3% had type 2 notching, and 2.6% had type 3 notching. No stems had lucency in more than 1 zone or lucency ≥ 2 mm; 9.2% had subsidence of 2 mm or less. No glenoid components had any lucency around the baseplate or screws. CONCLUSIONS: Cementless trabecular metal porous-coated implants for RTSA are associated with secure glenoid fixation and minimal radiographic evidence of humeral stem loosening or subsidence at short-term follow-up. The rates of scapular notching found in our study are comparable to previous studies and did not affect implant stability.
Authors: Derek D Berglund; Dragomir Mijic; Tsun Yee Law; Jennifer Kurowicki; Samuel Rosas; Jonathan C Levy Journal: J Shoulder Elbow Surg Date: 2018-11-02 Impact factor: 3.019
Authors: Yaiza Lopiz; Carlos García-Fernandez; María Vallejo-Carrasco; Daniel Garriguez-Pérez; Loreto Achaerandio; Carmen Tesoro-Gonzalo; Fernando Marco Journal: Int Orthop Date: 2022-01-16 Impact factor: 3.075
Authors: Johannes H M van Ochten; Marco van der Pluijm; Martin Pouw; Quinten T M Felsch; Petra Heesterbeek; Maarten J de Vos Journal: J Orthop Date: 2019-03-24
Authors: Sarav S Shah; Benjamin T Gaal; Alexander M Roche; Surena Namdari; Brian M Grawe; Macy Lawler; Stewart Dalton; Joseph J King; Joshua Helmkamp; Grant E Garrigues; Thomas W Wright; Bradley S Schoch; Kyle Flik; Randall J Otto; Richard Jones; Andrew Jawa; Peter McCann; Joseph Abboud; Gabe Horneff; Glen Ross; Richard Friedman; Eric T Ricchetti; Douglas Boardman; Robert Z Tashjian; Lawrence V Gulotta Journal: JSES Int Date: 2020-09-07