Total knee arthroplasty with mobile tibial weight-bearing: clinical evaluation after a minimum of five years of postoperative follow-up

Guglielmetti, Luiz Gabriel Betoni; Costa, Pedro Pereira da; Cury, Ricardo de Paula Leite; Oliveira, Victor Marques de; Severino, Nilson Roberto; Camargo, Osmar Pedro Arbix de

doi:10.1016/j.rboe.2015.05.004

Acessibilidade / Reportar erro

Brasil

Revista Brasileira de Ortopedia

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Original Articles • Rev. bras. ortop. 50 (3) • May-Jun 2015 • https://doi.org/10.1016/j.rboe.2015.05.004 copy

Total knee arthroplasty with mobile tibial weight-bearing: clinical evaluation after a minimum of five years of postoperative follow-up ^☆ ☆ Work developed in the Department of Orthopedics and Traumatology, Santa Casa de Misericórdia de São Paulo, Fernandinho Simonsen Wing, São Paulo, SP, Brazil.

Authorship SCIMAGO INSTITUTIONS RANKINGS

OBJECTIVE:

To evaluate the medium and long term results from total knee arthroplasty with rotating tibial weight-bearing.

METHODS:

Between January 2000 and July 2007, 162 patients underwent total knee arthroplasty with mobile tibial weight-bearing. Among these, 96 were evaluated in a previous study with a mean follow-up of 4 years. In the present study, the same group was invited back for reassessment and the results were analyzed. Sixty-nine patients responded to this call (79 knees), and they were evaluated in accordance with the Knee Society Rating System (KSRS), after a mean follow-up of 8 years and 8 months (ranging from 5.5 and 13 years).

RESULTS:

A mean KSRS score of 74.41 points was obtained, with good or excellent results.

CONCLUSION:

The medium and long-term results from total knee arthroplasty with mobile tibial weight-bearing were good, and a mean score of 74.41 points in the Knee Society Clinical Rating System was attained.

Replacement arthroplasty; Knee; Knee prosthesis; Knee osteoarthritis

Pain	Points	Deductions (at least)	Points
Absent	50	Contracture in flexion
Slight or occasional	45	5–10°	2
Only on stairs	40	10–15°	5
Walking and on stairs	30	16–20°	10
Severe	0	>20°	15
Movements		Incapacity to perform extension
(Each 5° = 1 point)	25	<10°	5
Stability		10–20°	10
Anterior–posterior		>20°	15
<5 mm	10	Alignment
5–10 mm	5	0–4°	0
>10 mm	0	5–10°	3 pt/1°
Medial–lateral		11–15°	3 pt/1°
<5°	15	Others	20
6–9°	10
10–14°	5	Points deducted
15° or more	0	Total final

Surgical complications	Cases	Score (KSRS)
Femoral condylar fracture	1	0
Patellar fracture	3	83, 80, 68
Fibular neuropraxia	3	68, 93, 92
Reflex nerve dystrophy	1	45
Dehiscence of skin suture	1	75
Infection	5	0, 0, 0, 0, 0
Aseptic loosening	5	0, 0, 0, 0, 0

Sociedade Brasileira de Ortopedia e Traumatologia Al. Lorena, 427 14º andar, 01424-000 São Paulo - SP - Brasil, Tel.: 55 11 2137-5400 - São Paulo - SP - Brazil
E-mail: rbo@sbot.org.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] * Corresponding author. E-mail: luizgbg@terra.com.br (L.G.B. Guglielmetti).

Primary deformity	Varus: 64.5%
	Valgus: 29.2%
	Without deformity: 5.1%
	Recurvatum: 1.2%
Side affected	Right: 51.9%
Side affected	Left: 48.1%
Etiology	Knees
Primary osteoarthrosis	71 (89.9%)
Rheumatoid arthritis	2 (2.5%)
Osteonecrosis	3 (3.8%)
Fracture	3 (3.8%)