1. Operative treatment of acute shaft and neck lesser metatarsals fractures: a systematic review of the literature

   • Ioannis M. Stavrakakis
   • Evangelos A. Tourvas
   • Theodoros H. Tosounidis

   General Review 23 January 2021 Pages: 1263 - 1271

   

2. Quantitative imaging of the spine in adolescent idiopathic scoliosis: shifting the paradigm from diagnostic to comprehensive prognostic evaluation

   • Saba Pasha
   • Chamith R. Rajapaske
   • Diego Jaramillo

   General Review 31 January 2021 Pages: 1273 - 1285

   

3. Percutaneous treatments of primary aneurysmal bone cysts: systematic review and meta-analysis

   • Gabriel Schmitt Cruz
   • Carlos Enrique Cuevas-Suárez
   • Francisco Wilker Mustafa Gomes Muniz

   General Review 07 February 2021 Pages: 1287 - 1295

   

4. 2020 international practice patterns in adult joint reconstruction surgery: a survey of members of the International Society of Orthopaedic Centers

   • Daniel C. Santana
   • Alejandro Gonzalez Della Valle
   • Nicolas S. Piuzzi

   Original Article 22 January 2021 Pages: 1297 - 1303

   

5. Pie-crusting of proximal medial collateral ligament for correcting varus deformity in total knee arthroplasty

   • Tarun Goyal
   • Souvik Paul
   • Arghya Kundu Choudhury

   Original Article 23 January 2021 Pages: 1305 - 1309

   

6. Novel clinical and radiological measures of lower limb obesity

   • Harold Akehurst
   • Sebastien Crosswell
   • Sandeep Deo

   Original Article 23 January 2021 Pages: 1311 - 1320

   

7. Treatment of tibial plateau fractures with a novel fenestrated screw system for delivery of bone graft substitute

   • Alexander L. Telis
   • Douglass W. Tucker
   • Adam K. Lee

   Original Article 24 January 2021 Pages: 1321 - 1327

   

8. Diabetes mellitus effect on rates of perioperative complications after operative treatment of distal radius fractures

   • Chapman Wei
   • Nisha Kapani
   • Sam Moghtaderi

   Original Article 25 January 2021 Pages: 1329 - 1334

9. Revision rate of THA in patients younger than 40 years depends on primary diagnosis – a retrospective analysis with a minimum follow-up of 10 years

   • Stefan Rahm
   • Armando Hoch
   • Patrick O. Zingg

   Original Article Open access 25 January 2021 Pages: 1335 - 1344

   

10. Double fractures of the femur: a review of 16 patients

    • Andrea Angelini
    • Andreas F. Mavrogenis
    • Pietro Ruggieri

    Original Article 26 January 2021 Pages: 1345 - 1354

    

11. Changes in patient-perceived leg length discrepancy following total hip arthroplasty

    • Kentaro Iwakiri
    • Yoichi Ohta
    • Hiroaki Nakamura

    Original Article 27 January 2021 Pages: 1355 - 1361

    

12. Fracture characteristics and outcomes of acetabular fracture management with minimally invasive approach and percutaneous fixation

    • Ekansh Debuka
    • Gunasekaran Kumar
    • Sanjay Kalra

    Original Article 29 January 2021 Pages: 1363 - 1368

    

13. Minimum 5-year follow-up of arthroscopic treatment of symptomatic iliopectineal cyst

    • Jörg Jerosch
    • Sherif Sokkar
    • Asser Sallam

    Original Article 02 February 2021 Pages: 1369 - 1374

    

14. Infected bone defects in the lower limb. Management by means of a two-stage distraction osteogenesis protocol

    • César Salcedo Cánovas
    • Javier Martínez Ros
    • Manuel Medina Quirós

    Original Article 08 February 2021 Pages: 1375 - 1386

    

15. Flexor hallucis longus hypertrophy secondary to Achilles tendon tendinopathy: an MRI-based case–control study

    • Stephan H. Wirth
    • Octavian Andronic
    • Andreas Hecker

    Original Article Open access 08 February 2021 Pages: 1387 - 1393

    

16. Lateral open wedge calcaneus osteotomy with bony allograft augmentation in adult acquired flatfoot deformity. Clinical and radiological results

    • Gabriele Colo’
    • Mattia Alessio Mazzola
    • Lamberto Felli

    Original Article Open access 12 February 2021 Pages: 1395 - 1402

    

17. A comparison of postoperative pain between anterior cruciate ligament reconstruction and repair

    • Patrick T. Connolly
    • Kyle W. Zittel
    • Evan H. Argintar

    Original Article 14 February 2021 Pages: 1403 - 1409

18. Periprosthetic occult acetabular fracture: an unknown side effect of press-fit techniques in primary cementless total hip arthroplasty

    • Ho Hyun Yun
    • Seung Hee Cheon
    • Yeong Yoon Koh

    Original Article 13 February 2021 Pages: 1411 - 1419

    

19. Cephalomedullary helical blade is independently associated with less collapse in intertrochanteric femur fractures than lag screws

    • L. Henry Goodnough
    • Harsh Wadhwa
    • Michael J. Gardner

    Original Article 15 February 2021 Pages: 1421 - 1425

20. Navigated iliac screw placement may reduce radiation and OR time in lumbopelvic fixation of unstable complex sacral fractures

    • M. F. Hoffmann
    • E. Yilmaz
    • T. A. Schildhauer

    Original Article Open access 16 February 2021 Pages: 1427 - 1433

    

21. Dynamic hip screw fixation of subtrochanteric femoral fractures

    • Zaki Arshad
    • Azeem Thahir
    • Daud T. S. Chou

    Original Article Open access 16 February 2021 Pages: 1435 - 1441

22. ARthroscopy in Knee OsteoArthritis (ARK-OA): a multicentre study assessing compliance to national guidelines

    • Chetan Khatri
    • Edward Dickenson
    • Timothy Barlow

    Original Article 21 February 2021 Pages: 1443 - 1449

    

23. A Level 1 Trauma Center’s response to the COVID-19 pandemic in New York City: a qualitative and quantitative story

    • Nina D. Fisher
    • Andrew S. Bi
    • Toni M. McLaurin

    Original Article 22 February 2021 Pages: 1451 - 1456

    

24. Surgical anatomy of the radial nerve in the arm: a cadaver study

    • Rita Sapage
    • Pedro A. Pereira
    • André Pinho

    Original Article 22 February 2021 Pages: 1457 - 1462

    

25. Shoulder function after helical long PHILOS plate

    • Tomas Da Silva
    • Franziska Rummel
    • Tobias Merkle

    Original Article 24 February 2021 Pages: 1463 - 1469

    

26. Targeting the safe zones for cup position without fluoroscopic guidance in total hip arthroplasty: does the surgical approach affect the outcomes?

    • Carlo Trevisan
    • Antonio Rocca
    • Raymond Klumpp

    Original Article 24 February 2021 Pages: 1471 - 1476

    

27. Original study: early patient-reported functional outcome of all-inside ACL reconstruction as compared to anteromedial portal technique

    • Vikas Kulshrestha
    • Munish Sood
    • Anurag Kawale

    Original Article 25 February 2021 Pages: 1477 - 1483

    

28. Corridor-diameter-dependent angular tolerance for safe transiliosacral screw placement: an anatomic study of 433 pelves

    • D. Alex McLaren
    • Gennadiy A. Busel
    • Brian Cunningham

    Original Article 01 March 2021 Pages: 1485 - 1492

    

29. Outcomes of conservative treatment for bony mallet fingers

    • Kenji Goto
    • Kiyohito Naito
    • Muneaki Ishijima

    Original Article 01 March 2021 Pages: 1493 - 1499

    

30. Patients aged ninety years and older are exposed to increased risk of one-year mortality after hip fractures

    • Jaime A. Leal
    • Luisa F. Garcia
    • Amparo Gomez-Gelvez

    Original Article 02 March 2021 Pages: 1501 - 1506

    

31. Some outcomes of patients treated operatively for distal humerus fractures are affected by hand dominance

    • Charlotte N. Shields
    • Joseph R. Johnson
    • Kenneth A. Egol

    Original Article 03 March 2021 Pages: 1507 - 1513

32. Long-term follow-up of a low profile, coated, press-fit cup: the trabeculae oriented pattern (T.O.P.) acetabular system

    • L. Mosconi
    • L. Cavagnaro
    • M. Formica

    Original Article Open access 03 March 2021 Pages: 1515 - 1521

    

33. Transfacet screws using spinal navigation in addition to anterior or oblique lumbar interbody fusion: technical note and preliminary results

    • Antoine Gennari
    • Amandine Gavotto
    • Stéphane Litrico

    Technical Note 01 February 2021 Pages: 1523 - 1528

    

34. Distal femoral fine wire traction assisted retrograde nailing of the femur

    • Michael J. Chen
    • Raffi S. Avedian
    • Julius A. Bishop

    Technical Note 11 February 2021 Pages: 1529 - 1534

    

35. Response to Letter to Editor “Comments on the study “The effect of platelet‑rich plasma on fracture healing in long‑bone pseudoarthrosis”

    • Koray Başdelioğlu
    • Gökhan Meriç
    • Devrim Akseki

    Letter to the Editor 26 January 2021 Pages: 1535 - 1536

36. Correction to: Experimental study with gentamicin impregnated plaster pellets

    • Jaime Jose Morales de Cano
    • A. Fernandez Sabate
    • N. Basi

    Correction 28 May 2021 Pages: 1537 - 1537

37. Correction to: The biological tests used in acute-phase of inflammation in bone infection Clinical study

    • Jaime Jose Morales de Cano
    • J. Cabo
    • J. Ariza

    Correction 28 May 2021 Pages: 1539 - 1539

38. Correction to: Continuous suction irrigation: prospective bacteriological study

    • J. Cabo
    • Jaime Jose Morales de Cano
    • J. Ariza

    Correction 29 May 2021 Pages: 1541 - 1541

39. Correction to: The inverted Vancouver C fracture. Case series of unstable proximal femur fractures above a knee revision stem treated by short cephalomedullary nail and lateral submuscular overlapping plate

    • José Vicente Andrés Peiró
    • Maria Jurado Ruiz
    • Vicente Molero García

    Correction 16 August 2021 Pages: 1543 - 1543

40. Correction to: Uniplanar versus biplanar monolateral external fixator knee arthrodesis after end-stage failed infected total knee arthroplasty: a comparative study

    • Pablo S. Corona
    • Maria Jurado Ruiz
    • Matías Vicente

    Correction 17 August 2021 Pages: 1545 - 1545