Reference for Chullin 4:6

בְּהֵמָה שֶׁנֶּחְתְּכוּ רַגְלֶיהָ מִן הָאַרְכֻּבָּה וּלְמַטָּה, כְּשֵׁרָה. מִן הָאַרְכֻּבָּה וּלְמַעְלָה, פְּסוּלָה. וְכֵן שֶׁנִּטַּל צֹמֶת הַגִּידִין. נִשְׁבַּר הָעֶצֶם, אִם רֹב הַבָּשָׂר קַיָּם, שְׁחִיטָתוֹ מְטַהַרְתּוֹ. וְאִם לָאו, אֵין שְׁחִיטָתוֹ מְטַהַרְתּוֹ:

An animal whose legs were cut off from the knee and below is permitted; from the knee and above it is prohibited, and so too when the junction of the sinews is interrupted. [If] the bone was broken, if most of the flesh is extant, its slaughter permits it. But if not, its slaughter does not permit.

Jastrow

Jastrow

Jastrow

Jastrow