Traditional Versus Congruent Arc Latarjet Technique: Effect on Surface Area for Union and Bone Width Surrounding Screws

Guillaume D. Dumont, Bryan G. Vopat, Stephen Arthur Parada, Randy Cohn, Amun Makani, George Sanchez, Petar Golijanin, Brendin R. Beaulieu-Jones, Anthony Sanchez, Matthew T. Provencher

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Purpose To compare the surface area available for bony contact and the width of bone on each side of the Latarjet fixation screws in the traditional Latarjet technique versus the congruent arc modification of the Latarjet technique. Methods Computed tomographic scans of 24 shoulders in patients with glenohumeral instability who underwent multiplanar reconstruction measurements with multiple dimensions of the coracoid. The surface area of the coracoid available for bony contact with the anterior glenoid and width of bone on each side of a 3.5-mm screw was compared for the traditional Latarjet technique versus the congruent arc modification. Results The surface area available for bony contact to the anterior glenoid was 5.65 ± 1.08 cm2 using the traditional Latarjet technique compared with 3.64 ± 0.93 cm2 using the congruent arc modification of the Latarjet technique (P <.001). The mean width of bone on each side of a 3.5-mm screw was 7.1 ± 1.0 mm using the traditional Latarjet technique compared with 4.1 ± 1.0 mm using the congruent arc modification (P <.001). Conclusions The traditional Latarjet technique has greater bony contact with the glenoid and greater bone width on each side of the screws compared with the congruent arc modification of the Latarjet technique. This potentially allows for a larger surface for healing in the traditional Latarjet technique. Moreover, because of smaller width of the bone around the screw, the congruent arc modification is potentially less tolerant of screw-positioning error compared with the traditional Latarjet technique. Level of Evidence Level III, retrospective comparative study.

Original languageEnglish (US)
Pages (from-to)946-952
Number of pages7
JournalArthroscopy - Journal of Arthroscopic and Related Surgery
Volume33
Issue number5
DOIs
StatePublished - May 1 2017

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Bone and Bones
Bone Screws
Retrospective Studies

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Traditional Versus Congruent Arc Latarjet Technique : Effect on Surface Area for Union and Bone Width Surrounding Screws. / Dumont, Guillaume D.; Vopat, Bryan G.; Parada, Stephen Arthur; Cohn, Randy; Makani, Amun; Sanchez, George; Golijanin, Petar; Beaulieu-Jones, Brendin R.; Sanchez, Anthony; Provencher, Matthew T.

In: Arthroscopy - Journal of Arthroscopic and Related Surgery, Vol. 33, No. 5, 01.05.2017, p. 946-952.

Research output: Contribution to journalArticle

Dumont, GD, Vopat, BG, Parada, SA, Cohn, R, Makani, A, Sanchez, G, Golijanin, P, Beaulieu-Jones, BR, Sanchez, A & Provencher, MT 2017, 'Traditional Versus Congruent Arc Latarjet Technique: Effect on Surface Area for Union and Bone Width Surrounding Screws', Arthroscopy - Journal of Arthroscopic and Related Surgery, vol. 33, no. 5, pp. 946-952. https://doi.org/10.1016/j.arthro.2016.09.035
Dumont, Guillaume D. ; Vopat, Bryan G. ; Parada, Stephen Arthur ; Cohn, Randy ; Makani, Amun ; Sanchez, George ; Golijanin, Petar ; Beaulieu-Jones, Brendin R. ; Sanchez, Anthony ; Provencher, Matthew T. / Traditional Versus Congruent Arc Latarjet Technique : Effect on Surface Area for Union and Bone Width Surrounding Screws. In: Arthroscopy - Journal of Arthroscopic and Related Surgery. 2017 ; Vol. 33, No. 5. pp. 946-952.
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abstract = "Purpose To compare the surface area available for bony contact and the width of bone on each side of the Latarjet fixation screws in the traditional Latarjet technique versus the congruent arc modification of the Latarjet technique. Methods Computed tomographic scans of 24 shoulders in patients with glenohumeral instability who underwent multiplanar reconstruction measurements with multiple dimensions of the coracoid. The surface area of the coracoid available for bony contact with the anterior glenoid and width of bone on each side of a 3.5-mm screw was compared for the traditional Latarjet technique versus the congruent arc modification. Results The surface area available for bony contact to the anterior glenoid was 5.65 ± 1.08 cm2 using the traditional Latarjet technique compared with 3.64 ± 0.93 cm2 using the congruent arc modification of the Latarjet technique (P <.001). The mean width of bone on each side of a 3.5-mm screw was 7.1 ± 1.0 mm using the traditional Latarjet technique compared with 4.1 ± 1.0 mm using the congruent arc modification (P <.001). Conclusions The traditional Latarjet technique has greater bony contact with the glenoid and greater bone width on each side of the screws compared with the congruent arc modification of the Latarjet technique. This potentially allows for a larger surface for healing in the traditional Latarjet technique. Moreover, because of smaller width of the bone around the screw, the congruent arc modification is potentially less tolerant of screw-positioning error compared with the traditional Latarjet technique. Level of Evidence Level III, retrospective comparative study.",
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T2 - Effect on Surface Area for Union and Bone Width Surrounding Screws

AU - Dumont, Guillaume D.

AU - Vopat, Bryan G.

AU - Parada, Stephen Arthur

AU - Cohn, Randy

AU - Makani, Amun

AU - Sanchez, George

AU - Golijanin, Petar

AU - Beaulieu-Jones, Brendin R.

AU - Sanchez, Anthony

AU - Provencher, Matthew T.

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Y1 - 2017/5/1

N2 - Purpose To compare the surface area available for bony contact and the width of bone on each side of the Latarjet fixation screws in the traditional Latarjet technique versus the congruent arc modification of the Latarjet technique. Methods Computed tomographic scans of 24 shoulders in patients with glenohumeral instability who underwent multiplanar reconstruction measurements with multiple dimensions of the coracoid. The surface area of the coracoid available for bony contact with the anterior glenoid and width of bone on each side of a 3.5-mm screw was compared for the traditional Latarjet technique versus the congruent arc modification. Results The surface area available for bony contact to the anterior glenoid was 5.65 ± 1.08 cm2 using the traditional Latarjet technique compared with 3.64 ± 0.93 cm2 using the congruent arc modification of the Latarjet technique (P <.001). The mean width of bone on each side of a 3.5-mm screw was 7.1 ± 1.0 mm using the traditional Latarjet technique compared with 4.1 ± 1.0 mm using the congruent arc modification (P <.001). Conclusions The traditional Latarjet technique has greater bony contact with the glenoid and greater bone width on each side of the screws compared with the congruent arc modification of the Latarjet technique. This potentially allows for a larger surface for healing in the traditional Latarjet technique. Moreover, because of smaller width of the bone around the screw, the congruent arc modification is potentially less tolerant of screw-positioning error compared with the traditional Latarjet technique. Level of Evidence Level III, retrospective comparative study.

AB - Purpose To compare the surface area available for bony contact and the width of bone on each side of the Latarjet fixation screws in the traditional Latarjet technique versus the congruent arc modification of the Latarjet technique. Methods Computed tomographic scans of 24 shoulders in patients with glenohumeral instability who underwent multiplanar reconstruction measurements with multiple dimensions of the coracoid. The surface area of the coracoid available for bony contact with the anterior glenoid and width of bone on each side of a 3.5-mm screw was compared for the traditional Latarjet technique versus the congruent arc modification. Results The surface area available for bony contact to the anterior glenoid was 5.65 ± 1.08 cm2 using the traditional Latarjet technique compared with 3.64 ± 0.93 cm2 using the congruent arc modification of the Latarjet technique (P <.001). The mean width of bone on each side of a 3.5-mm screw was 7.1 ± 1.0 mm using the traditional Latarjet technique compared with 4.1 ± 1.0 mm using the congruent arc modification (P <.001). Conclusions The traditional Latarjet technique has greater bony contact with the glenoid and greater bone width on each side of the screws compared with the congruent arc modification of the Latarjet technique. This potentially allows for a larger surface for healing in the traditional Latarjet technique. Moreover, because of smaller width of the bone around the screw, the congruent arc modification is potentially less tolerant of screw-positioning error compared with the traditional Latarjet technique. Level of Evidence Level III, retrospective comparative study.

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