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Table 3 Detailed data of previous fixation with stem in peri-knee metaphysis

From: Is three-dimensional–printed custom-made ultra-short stem with a porous structure an acceptable reconstructive alternative in peri-knee metaphysis for the tumorous bone defect?

Study

Patient number

Stump location

Fixation tech

Manufacturer

Stump length (cm)

Stem length (cm)

Mean follow-up (months)

MSTS-93 score

Complications

Guder 2017 [31]

4

4 Tibiae

Rough, hollow stem; uncemented

Implantcast, Buxtehude, Germany

3.1 (2.5–3.5)

-

56 (30–102)

28 (27–29)

2 Wound healing, 1 local recurrence, 2 periprosthetic fracture

Burger 2016 [7]

5

5 Femora

Spreading stem; uncemented

ArgoMedical, Zug, Switzerland

> 12

12

21.5 (3.5–46)

19 (7–26)

1 Metastasis

Bernthal 2019 [30]

56

12 Femora, 1 tibia, 43 others

Cross-pin; cemented

Stryker, Mahwah, New Jersey)

-

-

Median 132 (IQR, 44–189)

-

1 Infection, 2 aseptic loosening, 1 structural failure

Benevenia 2016 [29]

41

21 Femora, 5 tibiae, 16 humeri

Clamped intramedullary-nail, cemented /uncemented

OsteoBridge IDSF; Merete, Berlin, Germany

-

1–20

14 (1–51)

Femur 25 (10–29), tibia 23 (13–30)

5 Aseptic loosening (uncemented), 6 structural failure (cemented)

Aldyami 2005 [25]

35

29 Femora, 3 tibiae, 3 humeri

Cemented /uncemented

-

-

-

107 (24–306)

-

14 Metastasis, 5 local recurrences, 1 periprosthetic fracture, 2 prosthetic fracture, 7 aseptic loosening

Hanna 2010 [36]

23

23 Femora

Fluted stem and extracortical plates, cemented, and HA collar

Stanmore Implants Worldwide Ltd, Middlesex, UK

-

-

97 (3–240)

26 (20–28)

1 Infection, 2 prosthetic fracture, 1 periprosthetic fracture, 1 aseptic loosening

Sewell 2011 [38]

18

18 Tibiae

Fluted stem, cemented, and HA collar

Stanmore Implants Worldwide Ltd, Middlesex, UK

-

2.8–7

58.5 (20–141)

23 (17–28)

4 Aseptic loosening (proximal), 1 infection, 2 periprosthetic fracture

Stevenson 2017 [50]

37

9 Femora, 28 others

Extracortical plates, cemented, and HA collar

Stanmore Implants Worldwide Ltd, Middlesex, UK

-

7.9 (3.4–10)

84 (12–204)

-

2 Aseptic loosening, 1 structural failure, 1 infection

Streitburger 2020 [32]

28

17 Femora, 11 tibiae

Solid or hollow, hexagonal stem with protruding fins and interlocking screw

Implantcast, Buxtehude, Germany

2.5–26

-

35 (4–139)

-

14 Aseptic loosening (4 femora, 4 tibiae), 1 periprosthetic fracture, 3 infection, 4 local recurrence

Tedesco 2017 [35]

6

5 Femora, 1 tibia

Double compressive osseointegration

Biomet, Inc, Warsaw, Indiana

3.7–8.2

-

39 (10–108)

26 (11–30)

2 Prosthetic fracture, 1 periprosthetic fracture

Current study

15

8 Femora, 7 tibiae

3D-printed stem with a porous structure

Chunli Co., Ltd. Tongzhou, Beijing, China

Median 6.4 (44.1–97.1)

Median 5.1 (42.7–79.7)

Median 42 (34–54)

Median 26 (23–30)

2 Periprosthetic fracture, 1 early aseptic loosening