Pjh. Kendall et al., A functional analysis of massive knee replacement after extra-articular resections of primary bone tumors, J ARTHROPLA, 15(6), 2000, pp. 754-760
We performed a functional analysis of massive knee replacements after extra
-articular resection of primary bone tumors. Patients did not score as high
ly on the Musculoskeletal Tumour Society Score and Knee Society Score (P le
ss than or equal to .01) as patients who had undergone intra-articular rese
ction. Lower scores were achieved for emotional acceptance (P less than or
equal to .01 ). functional restriction (P less than or equal to .05), walki
ng distance (P less than or equal to .05). and managing stairs (P less than
or equal to .05). These patients had a significantly greater extension lag
(P less than or equal to .01) and greater fixed flexion (P less than or eq
ual to .05). This functional deficit is primarily due to a compromised exte
nsor mechanism inherent in the type of surgical resection necessary to achi
eve adequate removal of the tumor.